Re: Long macro lens

2008-04-27 Thread Boris Liberman
Adam,

Adam Maas wrote:
 This is a 2x flat-field converter specifically matched to the Tamron
 90mm f2.5 Macro lens. It's not going to bugger anything up, unlike a
 normal 2x TC.
 
 -Adam

I had Tamron 90/2.5 (the oldest with 49 mm filter thread) and matching 
2x TC. Although by very little, but the IQ was degraded if TC was used...

Just my cents...


Boris

-- 
PDML Pentax-Discuss Mail List
PDML@pdml.net
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow 
the directions.


Re: Long macro lens

2008-04-23 Thread Adam Maas
This is a 2x flat-field converter specifically matched to the Tamron
90mm f2.5 Macro lens. It's not going to bugger anything up, unlike a
normal 2x TC.

-Adam

On Wed, Apr 23, 2008 at 12:00 AM, J. C. O'Connell [EMAIL PROTECTED] wrote:
 you guys must have never used real macro lenses, not only are
  regular lenses some have suggested inferior at macro mags
  compared to real macros, using a 2x will bugger up the
  situation beyond belief, forget that idea completely.
  jco



  -Original Message-
  From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
  Brian Walters
  Sent: Tuesday, April 22, 2008 8:48 PM
  To: Pentax-Discuss Mail List
  Subject: Re: Long macro lens


  Yes, I was about to suggest that.  The 2x converter is commonly available on
  ebay at well under $100.  You'll lose a couple of stops but, if you're using
  the lens well stopped down to maximize depth of field, that may not matter.

  I've got this exact combination fitted to my DS - works well.

  Might be worth a try until you decide something more expensive is needed.


  Cheers

  Brian

  ++
  Brian Walters
  Western Sydney Australia http://members.westnet.com.au/brianwal/SL/



  On Tue, 22 Apr 2008 20:08:35 -0400, Perry Pellechia
  [EMAIL PROTECTED] said:
   If your Tamron 90 is the Adaptall version why not get the Tamron flat
   field 2x TC that was designed for it?  It make a pretty nice combo and
   you should be able to find the TC on eBay for less than $100.
  
   On Tue, Apr 22, 2008 at 6:48 PM, Barry Rice [EMAIL PROTECTED]
   wrote:
   
 Hey Folks,
   
 My wife is becoming increasingly interested in photography of
flighty,  skittish, and sometimes dangerous animals, such as
butterflies, reptiles,  and snakes. I realized that the ideal lens
for her would be something like a  200 mm 1:1 macro. Even better
would be if it were autofocus.
   
 Is there anything like this that would fit her *istDs? Or are we in
a  fantasy land that I couldn't afford? Currently she uses my 90mm
Tamron, but  can't quite get close enough with that lens.
   
 Cheers
   
 Barry
   
  --


  --
  http://www.fastmail.fm - The way an email service should be


  --
  PDML Pentax-Discuss Mail List
  PDML@pdml.net
  http://pdml.net/mailman/listinfo/pdml_pdml.net
  to UNSUBSCRIBE from the PDML, please visit the link directly above and
  follow the directions.


  --
  PDML Pentax-Discuss Mail List
  PDML@pdml.net
  http://pdml.net/mailman/listinfo/pdml_pdml.net
  to UNSUBSCRIBE from the PDML, please visit the link directly above and 
 follow the directions.




-- 
M. Adam Maas
http://www.mawz.ca
Explorations of the City Around Us.

-- 
PDML Pentax-Discuss Mail List
PDML@pdml.net
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow 
the directions.


RE: Long macro lens

2008-04-23 Thread J. C. O'Connell
no lens with ANY 2X TC is ever going to approach the
performance of ANY Pentax dedicated MACRO Lens, TCs
suck, all they do is magnify/project a central portion of
the primary lens, even if they were perfect you
are not going to get nearly as much contrast
nor resolution as a primary MACRO lens of the same
focal length without the 2xTC in place. The matter is
even worse with APS digital than it is with FF film
because you are then using an even smaller section
of the lens circle and blowing that up again...
jco

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Adam
Maas
Sent: Wednesday, April 23, 2008 2:34 PM
To: Pentax-Discuss Mail List
Subject: Re: Long macro lens


This is a 2x flat-field converter specifically matched to the Tamron 90mm
f2.5 Macro lens. It's not going to bugger anything up, unlike a normal 2x
TC.

-Adam

On Wed, Apr 23, 2008 at 12:00 AM, J. C. O'Connell [EMAIL PROTECTED] wrote:
 you guys must have never used real macro lenses, not only are  regular 
 lenses some have suggested inferior at macro mags  compared to real 
 macros, using a 2x will bugger up the  situation beyond belief, forget 
 that idea completely.  jco



  -Original Message-
  From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf 
 Of  Brian Walters
  Sent: Tuesday, April 22, 2008 8:48 PM
  To: Pentax-Discuss Mail List
  Subject: Re: Long macro lens


  Yes, I was about to suggest that.  The 2x converter is commonly 
 available on  ebay at well under $100.  You'll lose a couple of stops 
 but, if you're using  the lens well stopped down to maximize depth of 
 field, that may not matter.

  I've got this exact combination fitted to my DS - works well.

  Might be worth a try until you decide something more expensive is 
 needed.


  Cheers

  Brian

  ++
  Brian Walters
  Western Sydney Australia http://members.westnet.com.au/brianwal/SL/



  On Tue, 22 Apr 2008 20:08:35 -0400, Perry Pellechia  
 [EMAIL PROTECTED] said:   If your Tamron 90 is the Adaptall 
 version why not get the Tamron flat   field 2x TC that was designed 
 for it?  It make a pretty nice combo and   you should be able to find 
 the TC on eBay for less than $100.  
   On Tue, Apr 22, 2008 at 6:48 PM, Barry Rice [EMAIL PROTECTED]
   wrote:
   
 Hey Folks,
   
 My wife is becoming increasingly interested in photography of
flighty,  skittish, and sometimes dangerous animals, such as
butterflies, reptiles,  and snakes. I realized that the ideal lens
for her would be something like a  200 mm 1:1 macro. Even better
would be if it were autofocus.
   
 Is there anything like this that would fit her *istDs? Or are we in
a  fantasy land that I couldn't afford? Currently she uses my 90mm
Tamron, but  can't quite get close enough with that lens.
   
 Cheers
   
 Barry
   
  --


  --
  http://www.fastmail.fm - The way an email service should be


  --
  PDML Pentax-Discuss Mail List
  PDML@pdml.net
  http://pdml.net/mailman/listinfo/pdml_pdml.net
  to UNSUBSCRIBE from the PDML, please visit the link directly above 
 and  follow the directions.


  --
  PDML Pentax-Discuss Mail List
  PDML@pdml.net
  http://pdml.net/mailman/listinfo/pdml_pdml.net
  to UNSUBSCRIBE from the PDML, please visit the link directly above 
 and follow the directions.




-- 
M. Adam Maas
http://www.mawz.ca
Explorations of the City Around Us.

-- 
PDML Pentax-Discuss Mail List
PDML@pdml.net
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and
follow the directions.


-- 
PDML Pentax-Discuss Mail List
PDML@pdml.net
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow 
the directions.


Re: Long macro lens

2008-04-23 Thread Bob Sullivan
Barry,
You bring up the question about how she is working...
My experience is that you must have patience.
Butterflies feeding at flowers will often jump off when frightened,
but they make a 5 foot circle and come back to where they were.
You have to do some sitting/camping on a spot to get results.
Regards,  Bob S.

On Wed, Apr 23, 2008 at 12:43 PM, Barry Rice [EMAIL PROTECTED] wrote:
 Hey Folks,

 Thanks for the suggestions. I'm thinking that the Sigma 180mm F/3.5 sounds
 interesting. It is a bit pricey, but so is gas

 1)My current macro of choice is the Tamron 90mm, which is usually the lens
 that lives on my camera. I'd really be looking for a longer lens than just a
 100mm. I think something in the 200mm range would be ideal.

 2)I've got some manual lenses up to 200; I'll try those with extension
 tubes. The problem with these manual lenses is that the minor extra steps of
 using them on the crippled mount can be really frustrating for my wife as
 she's running after butterflies. I photograph plants, and don't begrudge the
 extra moment, but it sure irritates her in her work!

 Cheers

 Barry


 Barry A. Rice, Ph.D.
 Invasive Species Specialist
 Invasive Species Team
 The Nature Conservancy
 V: 530-754-8891
 http://tncweeds.ucdavis.edu



 --
 PDML Pentax-Discuss Mail List
 PDML@pdml.net
 http://pdml.net/mailman/listinfo/pdml_pdml.net
 to UNSUBSCRIBE from the PDML, please visit the link directly above and follow 
 the directions.


-- 
PDML Pentax-Discuss Mail List
PDML@pdml.net
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow 
the directions.


RE: Long macro lens

2008-04-23 Thread Bill Sawyer
Barry,

I thought I'd offer my 2 cents' worth here.  I've had the Sigma for about 
2 1/2 years now, and am quite pleased with it's performance.  It has become
my most used lens for both macro and general nature shooting. I wanted to
mention, though, that after about a year and a half, the diaphragm jammed in
the stopped down position. Nothing I could think of in the field would
restore it, and it went off to Sigma. They repaired it under warranty, of
course. 

I don't know if this was a fluke (it's been trouble free since) but you
should be aware of it.

Good luck whatever you decide to do.

Bill Sawyer
Livonia, MI

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
Barry Rice
Sent: Wednesday, April 23, 2008 1:44 PM
To: pdml@pdml.net
Subject: Long macro lens

Hey Folks,

Thanks for the suggestions. I'm thinking that the Sigma 180mm F/3.5 sounds
interesting. It is a bit pricey, but so is gas

1)My current macro of choice is the Tamron 90mm, which is usually the lens
that lives on my camera. I'd really be looking for a longer lens than just a
100mm. I think something in the 200mm range would be ideal.

2)I've got some manual lenses up to 200; I'll try those with extension
tubes. The problem with these manual lenses is that the minor extra steps of
using them on the crippled mount can be really frustrating for my wife as
she's running after butterflies. I photograph plants, and don't begrudge the
extra moment, but it sure irritates her in her work!

Cheers

Barry
 

Barry A. Rice, Ph.D.
Invasive Species Specialist
Invasive Species Team
The Nature Conservancy
V: 530-754-8891
http://tncweeds.ucdavis.edu 



-- 
PDML Pentax-Discuss Mail List
PDML@pdml.net
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and
follow the directions.


-- 
PDML Pentax-Discuss Mail List
PDML@pdml.net
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow 
the directions.


Re: Long macro lens

2008-04-23 Thread William Robb
Just to add to the confusion (after desperately trying to enable a new lens for 
the guy), I have
seen work from the Tamron 90mm macro and the matched multiplier, and was very 
impressed. A
friend had this rig and did some comparisons between the lens with and without 
the converter,
doubling the distance with the converter to keep the reproduction ratio the 
same, and the
results were nearly indistinguishable from one another at an 8x10 print size.
This was on film mind you, but if the lens is good on digital, I expect the 
lens and matched
multiplier should be good on digital as well.
I recall at one time I saw a set of extension tubes for Pentax that had A 
contacts which would 
make things much more usable on the current cameras. I don't for the life of me 
recall the 
brand, other than that they weren't Pentax.
Neither of these solutions will be as good as a real macro lens, but they will 
be a lot cheaper, 
and may be just fine for your wife's purposes too. I remember years ago I had 
just bought myself 
a 300mm f/5.6 Tamron lens, one of the old stove pipes. We were being swarmed by 
Monarchs, so I 
stuck an entire extension tube set onto the LX and put the 300 on the front and 
proceded to 
chase butterflies around the yard for a roll of film.
The working distance was around 10 feet, perhaps a bit more, and this was 
almost filling the 
frame with butterfly.
I got some lovely pictures that blew up nicely to 11x14

William Robb


- Original Message - 
From: Bill Sawyer
Subject: RE: Long macro lens


 Barry,

 I thought I'd offer my 2 cents' worth here.  I've had the Sigma for about
 2 1/2 years now, and am quite pleased with it's performance.  It has become
 my most used lens for both macro and general nature shooting. I wanted to
 mention, though, that after about a year and a half, the diaphragm jammed in
 the stopped down position. Nothing I could think of in the field would
 restore it, and it went off to Sigma. They repaired it under warranty, of
 course.

 I don't know if this was a fluke (it's been trouble free since) but you
 should be aware of it.

 Good luck whatever you decide to do.


 Thanks for the suggestions. I'm thinking that the Sigma 180mm F/3.5 sounds
 interesting. It is a bit pricey, but so is gas

 1)My current macro of choice is the Tamron 90mm, which is usually the lens
 that lives on my camera. I'd really be looking for a longer lens than just a
 100mm. I think something in the 200mm range would be ideal.



-- 
PDML Pentax-Discuss Mail List
PDML@pdml.net
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow 
the directions.


Re: Long macro lens

2008-04-22 Thread Sandy Harris
On Wed, Apr 23, 2008 at 6:48 AM, Barry Rice [EMAIL PROTECTED] wrote:

   the ideal lens for her would be something like a
  200 mm 1:1 macro. Even better would be if it were autofocus.

  Is there anything like this that would fit her *istDs? ...

Voigtlander have a 125/2.5 and a 180/4, down at the ottom of this page:
http://www.cameraquest.com/inventor.htm
I don't think the 180 is still avaiailable in Pentax mount, though.

-- 
Sandy Harris,
Nanjing, China

-- 
PDML Pentax-Discuss Mail List
PDML@pdml.net
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow 
the directions.


Re: Long macro lens

2008-04-22 Thread Doug Franklin
Barry Rice wrote:

 My wife is becoming increasingly interested in photography of flighty,
 skittish, and sometimes dangerous animals, such as butterflies, reptiles,
 and snakes. I realized that the ideal lens for her would be something like a
 200 mm 1:1 macro. Even better would be if it were autofocus.
 
 Is there anything like this that would fit her *istDs? Or are we in a
 fantasy land that I couldn't afford? Currently she uses my 90mm Tamron, but
 can't quite get close enough with that lens.

If you can find one, the Sigma APO 400/5.6 Macro in Pentax AF mount can 
go down to about 1:3, which works out to a meter or two, if I remember 
correctly.  I got mine just after they were discontinued.

-- 
Thanks,
DougF (KG4LMZ)

-- 
PDML Pentax-Discuss Mail List
PDML@pdml.net
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow 
the directions.


Re: Long macro lens

2008-04-22 Thread P. J. Alling
Here you go, you'll only have to trade your first born for one...

http://www.bdimitrov.de/kmp/lenses/primes/tele/FA200f4-Macro.html

Barry Rice wrote:
  
 Hey Folks,

 My wife is becoming increasingly interested in photography of flighty,
 skittish, and sometimes dangerous animals, such as butterflies, reptiles,
 and snakes. I realized that the ideal lens for her would be something like a
 200 mm 1:1 macro. Even better would be if it were autofocus.

 Is there anything like this that would fit her *istDs? Or are we in a
 fantasy land that I couldn't afford? Currently she uses my 90mm Tamron, but
 can't quite get close enough with that lens.

 Cheers

 Barry
  

 Barry A. Rice, Ph.D.
 Invasive Species Specialist
 Invasive Species Team
 The Nature Conservancy
 V: 530-754-8891
 http://tncweeds.ucdavis.edu



   


-- 
Vote for Cthulhu. Why settle for a lesser evil...
   -- Dr. Jerry Pournelle 


-- 
PDML Pentax-Discuss Mail List
PDML@pdml.net
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow 
the directions.


Re: Long macro lens

2008-04-22 Thread William Robb

- Original Message - 
From: Barry Rice
Subject: Long macro lens



 Hey Folks,

 My wife is becoming increasingly interested in photography of flighty,
 skittish, and sometimes dangerous animals, such as butterflies, reptiles,
 and snakes. I realized that the ideal lens for her would be something like a
 200 mm 1:1 macro. Even better would be if it were autofocus.

 Is there anything like this that would fit her *istDs? Or are we in a
 fantasy land that I couldn't afford? Currently she uses my 90mm Tamron, but
 can't quite get close enough with that lens.

Try and find an FA200mm f/4 macro. It won't be easy, and it won't be cheap, but 
the best is 
usually that way.

Failing that, Sigma has a 180mm f/3.5 macro available in Pentax mount.

William Robb 


-- 
PDML Pentax-Discuss Mail List
PDML@pdml.net
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow 
the directions.


Re: Long macro lens

2008-04-22 Thread P. J. Alling
The A* version of this lens is on offer at a famous on line auction site 
even as we speak, the initial bid price is astronomical for a used 
lens, some would say it's worth it.

P. J. Alling wrote:
 Here you go, you'll only have to trade your first born for one...

 http://www.bdimitrov.de/kmp/lenses/primes/tele/FA200f4-Macro.html

 Barry Rice wrote:
   
  
 Hey Folks,

 My wife is becoming increasingly interested in photography of flighty,
 skittish, and sometimes dangerous animals, such as butterflies, reptiles,
 and snakes. I realized that the ideal lens for her would be something like a
 200 mm 1:1 macro. Even better would be if it were autofocus.

 Is there anything like this that would fit her *istDs? Or are we in a
 fantasy land that I couldn't afford? Currently she uses my 90mm Tamron, but
 can't quite get close enough with that lens.

 Cheers

 Barry
  

 Barry A. Rice, Ph.D.
 Invasive Species Specialist
 Invasive Species Team
 The Nature Conservancy
 V: 530-754-8891
 http://tncweeds.ucdavis.edu



   
 


   


-- 
Vote for Cthulhu. Why settle for a lesser evil...
   -- Dr. Jerry Pournelle 


-- 
PDML Pentax-Discuss Mail List
PDML@pdml.net
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow 
the directions.


Re: Long macro lens

2008-04-22 Thread Mark Roberts
Barry Rice wrote:
  
 Hey Folks,
 
 My wife is becoming increasingly interested in photography of flighty,
 skittish, and sometimes dangerous animals, such as butterflies, reptiles,
 and snakes. I realized that the ideal lens for her would be something like a
 200 mm 1:1 macro. Even better would be if it were autofocus.
 
 Is there anything like this that would fit her *istDs? Or are we in a
 fantasy land that I couldn't afford? Currently she uses my 90mm Tamron, but
 can't quite get close enough with that lens.

The Sigma 180mm f/3.5 Macro is fabulous. Can't say enough good about it. 
Sells for around $800.00

-- 
PDML Pentax-Discuss Mail List
PDML@pdml.net
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow 
the directions.


Re: Long macro lens

2008-04-22 Thread Perry Pellechia
If your Tamron 90 is the Adaptall version why not get the Tamron flat
field 2x TC that was designed for it?  It make a pretty nice combo and
you should be able to find the TC on eBay for less than $100.

On Tue, Apr 22, 2008 at 6:48 PM, Barry Rice [EMAIL PROTECTED] wrote:

  Hey Folks,

  My wife is becoming increasingly interested in photography of flighty,
  skittish, and sometimes dangerous animals, such as butterflies, reptiles,
  and snakes. I realized that the ideal lens for her would be something like a
  200 mm 1:1 macro. Even better would be if it were autofocus.

  Is there anything like this that would fit her *istDs? Or are we in a
  fantasy land that I couldn't afford? Currently she uses my 90mm Tamron, but
  can't quite get close enough with that lens.

  Cheers

  Barry


  Barry A. Rice, Ph.D.
  Invasive Species Specialist
  Invasive Species Team
  The Nature Conservancy
  V: 530-754-8891
  http://tncweeds.ucdavis.edu



  --
  PDML Pentax-Discuss Mail List
  PDML@pdml.net
  http://pdml.net/mailman/listinfo/pdml_pdml.net
  to UNSUBSCRIBE from the PDML, please visit the link directly above and 
 follow the directions.




-- 

Perry Pellechia

Primary email: [EMAIL PROTECTED]
Alternate email: [EMAIL PROTECTED]
Home Page: http://homer.chem.sc.edu/perry


-- 
PDML Pentax-Discuss Mail List
PDML@pdml.net
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow 
the directions.


Re: Long macro lens

2008-04-22 Thread Gonz
Yup, pdml member Rob Studdert seems to be offering it.

On 4/22/08, P. J. Alling [EMAIL PROTECTED] wrote:
 The A* version of this lens is on offer at a famous on line auction site
  even as we speak, the initial bid price is astronomical for a used
  lens, some would say it's worth it.


  P. J. Alling wrote:
   Here you go, you'll only have to trade your first born for one...
  
   http://www.bdimitrov.de/kmp/lenses/primes/tele/FA200f4-Macro.html
  
   Barry Rice wrote:
  
  
   Hey Folks,
  
   My wife is becoming increasingly interested in photography of flighty,
   skittish, and sometimes dangerous animals, such as butterflies, reptiles,
   and snakes. I realized that the ideal lens for her would be something 
 like a
   200 mm 1:1 macro. Even better would be if it were autofocus.
  
   Is there anything like this that would fit her *istDs? Or are we in a
   fantasy land that I couldn't afford? Currently she uses my 90mm Tamron, 
 but
   can't quite get close enough with that lens.
  
   Cheers
  
   Barry
  
  
   Barry A. Rice, Ph.D.
   Invasive Species Specialist
   Invasive Species Team
   The Nature Conservancy
   V: 530-754-8891
   http://tncweeds.ucdavis.edu
  
  
  
  
  
  
  
  


  --
  Vote for Cthulhu. Why settle for a lesser evil...
-- Dr. Jerry Pournelle


  --
  PDML Pentax-Discuss Mail List
  PDML@pdml.net
  http://pdml.net/mailman/listinfo/pdml_pdml.net
  to UNSUBSCRIBE from the PDML, please visit the link directly above and 
 follow the directions.


-- 
PDML Pentax-Discuss Mail List
PDML@pdml.net
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow 
the directions.


Re: Long macro lens

2008-04-22 Thread Bob Sullivan
Barry,
I would start with a 200mm and a set of extension tubes.
This would get her close focus and some interesting pictures.
Results can be suprisingly good!
I've compared the A100/2.8 Macro and M100/2.8 w/tube on butterflies.
The M100/2.8 w/tube is suprisingly good.
I've also used an A300/4 w/tube to fill the frame with a Day Lilly.
Try the M200/4 w/tube.
Regards, Bob S.

On Tue, Apr 22, 2008 at 6:20 PM, Mark Roberts [EMAIL PROTECTED] wrote:
 Barry Rice wrote:
 
  Hey Folks,
 
  My wife is becoming increasingly interested in photography of flighty,
  skittish, and sometimes dangerous animals, such as butterflies, reptiles,
  and snakes. I realized that the ideal lens for her would be something like a
  200 mm 1:1 macro. Even better would be if it were autofocus.
 
  Is there anything like this that would fit her *istDs? Or are we in a
  fantasy land that I couldn't afford? Currently she uses my 90mm Tamron, but
  can't quite get close enough with that lens.

 The Sigma 180mm f/3.5 Macro is fabulous. Can't say enough good about it.
 Sells for around $800.00


 --
 PDML Pentax-Discuss Mail List
 PDML@pdml.net
 http://pdml.net/mailman/listinfo/pdml_pdml.net
 to UNSUBSCRIBE from the PDML, please visit the link directly above and follow 
 the directions.


-- 
PDML Pentax-Discuss Mail List
PDML@pdml.net
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow 
the directions.


Re: Long macro lens

2008-04-22 Thread Brian Walters
Yes, I was about to suggest that.  The 2x converter is commonly
available on ebay at well under $100.  You'll lose a couple of stops
but, if you're using the lens well stopped down to maximize depth of
field, that may not matter.

I've got this exact combination fitted to my DS - works well.

Might be worth a try until you decide something more expensive is
needed.


Cheers

Brian

++
Brian Walters
Western Sydney Australia
http://members.westnet.com.au/brianwal/SL/



On Tue, 22 Apr 2008 20:08:35 -0400, Perry Pellechia
[EMAIL PROTECTED] said:
 If your Tamron 90 is the Adaptall version why not get the Tamron flat
 field 2x TC that was designed for it?  It make a pretty nice combo and
 you should be able to find the TC on eBay for less than $100.
 
 On Tue, Apr 22, 2008 at 6:48 PM, Barry Rice [EMAIL PROTECTED] wrote:
 
   Hey Folks,
 
   My wife is becoming increasingly interested in photography of flighty,
   skittish, and sometimes dangerous animals, such as butterflies, reptiles,
   and snakes. I realized that the ideal lens for her would be something like 
  a
   200 mm 1:1 macro. Even better would be if it were autofocus.
 
   Is there anything like this that would fit her *istDs? Or are we in a
   fantasy land that I couldn't afford? Currently she uses my 90mm Tamron, but
   can't quite get close enough with that lens.
 
   Cheers
 
   Barry
 
-- 


-- 
http://www.fastmail.fm - The way an email service should be


-- 
PDML Pentax-Discuss Mail List
PDML@pdml.net
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow 
the directions.


Re: Long macro lens

2008-04-22 Thread Stan Halpin
Barry - Pentax forte for some time was macro lenses. Lots of other  
good glass, but macro seemed to be an area where they really did  
things just right to get a superior product. (Others would argue that  
their 77-85 range is equally good; I would have a hard time disputing  
that claim. The 50mm lenses have been another special niche.) I have  
had substantial experience with the M (or was it A?) 50/4.0 and the A  
50/2.8. And the M 100/4.0, and the A 100/2.8, and FA100/2.8 and the  
DA 100/2.8. And the FA* 200/4. Not many of the later were produced,  
those of us who own them are not likely to let them go. But if you  
should find one available, run, do not walk, to the nearest bank to  
arrange a third mortgage, or sell your car, or otherwise rearrange  
your finances as needed to be able to buy it. Any of the 100mm plus  
2x should also do the trick, but you will degrade the image somewhat.  
Any of the 200 or 300mm lenses, with a short tube to bring the close  
focus point nearer will do ok, but you won't get the Pentax macro  
quality and you will lose autofocus. I think the most realistic  
option is to go for the DA 100/2.8 which is on the market  and will  
give good results.

(If you can live with manual focus, my A 100/2.8 is on my to-be-sold  
list. If a DA* 200 came along I might let go of the FA*, but for now  
it is on my to-be-buried-with-me list.)

stan

On Apr 22, 2008, at 5:48 PM, Barry Rice wrote:


 Hey Folks,

 My wife is becoming increasingly interested in photography of flighty,
 skittish, and sometimes dangerous animals, such as butterflies,  
 reptiles,
 and snakes. I realized that the ideal lens for her would be  
 something like a
 200 mm 1:1 macro. Even better would be if it were autofocus.

 Is there anything like this that would fit her *istDs? Or are we in a
 fantasy land that I couldn't afford? Currently she uses my 90mm  
 Tamron, but
 can't quite get close enough with that lens.

 Cheers

 Barry


 Barry A. Rice, Ph.D.
 Invasive Species Specialist
 Invasive Species Team
 The Nature Conservancy
 V: 530-754-8891
 http://tncweeds.ucdavis.edu



 -- 
 PDML Pentax-Discuss Mail List
 PDML@pdml.net
 http://pdml.net/mailman/listinfo/pdml_pdml.net
 to UNSUBSCRIBE from the PDML, please visit the link directly above  
 and follow the directions.


-- 
PDML Pentax-Discuss Mail List
PDML@pdml.net
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow 
the directions.


RE: Long macro lens

2008-04-22 Thread J. C. O'Connell
you guys must have never used real macro lenses, not only are
regular lenses some have suggested inferior at macro mags
compared to real macros, using a 2x will bugger up the 
situation beyond belief, forget that idea completely.
jco

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
Brian Walters
Sent: Tuesday, April 22, 2008 8:48 PM
To: Pentax-Discuss Mail List
Subject: Re: Long macro lens


Yes, I was about to suggest that.  The 2x converter is commonly available on
ebay at well under $100.  You'll lose a couple of stops but, if you're using
the lens well stopped down to maximize depth of field, that may not matter.

I've got this exact combination fitted to my DS - works well.

Might be worth a try until you decide something more expensive is needed.


Cheers

Brian

++
Brian Walters
Western Sydney Australia http://members.westnet.com.au/brianwal/SL/



On Tue, 22 Apr 2008 20:08:35 -0400, Perry Pellechia
[EMAIL PROTECTED] said:
 If your Tamron 90 is the Adaptall version why not get the Tamron flat 
 field 2x TC that was designed for it?  It make a pretty nice combo and 
 you should be able to find the TC on eBay for less than $100.
 
 On Tue, Apr 22, 2008 at 6:48 PM, Barry Rice [EMAIL PROTECTED] 
 wrote:
 
   Hey Folks,
 
   My wife is becoming increasingly interested in photography of 
  flighty,  skittish, and sometimes dangerous animals, such as 
  butterflies, reptiles,  and snakes. I realized that the ideal lens 
  for her would be something like a  200 mm 1:1 macro. Even better 
  would be if it were autofocus.
 
   Is there anything like this that would fit her *istDs? Or are we in 
  a  fantasy land that I couldn't afford? Currently she uses my 90mm 
  Tamron, but  can't quite get close enough with that lens.
 
   Cheers
 
   Barry
 
-- 


-- 
http://www.fastmail.fm - The way an email service should be


-- 
PDML Pentax-Discuss Mail List
PDML@pdml.net
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and
follow the directions.


-- 
PDML Pentax-Discuss Mail List
PDML@pdml.net
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow 
the directions.