Re: 105mm macro or 50mm with 2x TC

2002-11-07 Thread gfen
On Wed, 6 Nov 2002, Christian Skofteland wrote:
 Yes, but your working distance is not as good as with the 105.  And.  the
 only accessory allowed was a 2x converter so you are cheating! g

Bah, I'm trading in the 105 for the reverse ring, so I'm set. :)

 Better yet give me both lenses and I can reverse the 50 on the 105 and get 2x
 magnification.

I haven't tried this, yet. Is the quality better than just reverse
mounting a lens? Do you get a longer focal distance this way?


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Re: 105mm macro or 50mm with 2x TC

2002-11-07 Thread Christian Skofteland
On Thursday 07 November 2002 08:43, gfen wrote:

 On Wed, 6 Nov 2002, Christian Skofteland wrote:

  Better yet give me both lenses and I can reverse the 50 on the 105 and
  get 2x magnification.

 I haven't tried this, yet. Is the quality better than just reverse
 mounting a lens? Do you get a longer focal distance this way?

It gives better working distance.  Focal distance is irrelevant when dealing 
with final magnification size (use whatever focal length you have with some 
kind of technique, extension, close-up lenses, etc to achieve a specific 
magnification).

Actually a 50 reversed on a 105 is not my first choice.  What works really 
well for me is a 100/4 SMC Bellows lens reversed on a 200/4 SMC-M with a 
little bit of extension to avoid vignetting when stopped down.  You get 2x 
magnification and greater working distance so you don't scare away the little 
bugs.

http://pug.komkon.org/02jul/fly01a.html

One advantage to reversing a short lens on a long lens is that you still get 
open-aperture metering (the 100 bellows is set wide open and acts basically 
as a high quality close-up lens.  The 200 doesn't lose any functionality).  
With a reverse-mounted lens directly on the camera body you lose open 
aperture metering.  One cool thing about the Bellows A is that you can 
reverse the whole front stanchion which gives you great functionality when 
using the LX and double cable release because the aperture is open until you 
push the cable release which first stops down the lens and gives the LX time 
to meter and then the shutter is relesed and the LX works its magic.  It 
works great with TTL flash too!

Christian




105mm macro or 50mm with 2x TC

2002-11-06 Thread Francis Alviar
Hi folks,

I would like to ask which would you prefer to carry?

A 105mm f/2.8 macro or a 50mm f/1.4 combined with a 2x
teleconverter.

Thanks.


Francis M. Alviar
Irvine, CA



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Re: 105mm macro or 50mm with 2x TC

2002-11-06 Thread gfen
On Wed, 6 Nov 2002, Francis Alviar wrote:
 I would like to ask which would you prefer to carry?
 A 105mm f/2.8 macro or a 50mm f/1.4 combined with a 2x
 teleconverter.

The 105 should be infinitly shaper than the 50 with the TC... so, I think
the best answer would be both.

-- 
http://www.infotainment.org   - more fun than a poke in your eye.
http://www.eighteenpercent.com- photography and portfolio.




Re: 105mm macro or 50mm with 2x TC

2002-11-06 Thread Christian Skofteland
On Wednesday 06 November 2002 16:59, Francis Alviar wrote:
 Hi folks,

 I would like to ask which would you prefer to carry?

 A 105mm f/2.8 macro or a 50mm f/1.4 combined with a 2x
 teleconverter.

 Thanks.


 Francis M. Alviar
 Irvine, CA

Do I get only one lens?  If I'm shooting Macros then I'll take the 105.  If I 
only get one lens and I need to do scenics then i'll take the 50 but I won't 
expect to use it effectively for close-ups.  The answer is to carry both.

Christian




Re: 105mm macro or 50mm with 2x TC

2002-11-06 Thread gfen
On Wed, 6 Nov 2002, Christian Skofteland wrote:
 Do I get only one lens?  If I'm shooting Macros then I'll take the 105.  If I
 only get one lens and I need to do scenics then i'll take the 50 but I won't
 expect to use it effectively for close-ups.  The answer is to carry both.

Macro with a 50? Easy enough solution (for me): reverse ring.

-- 
http://www.infotainment.org   - more fun than a poke in your eye.
http://www.eighteenpercent.com- photography and portfolio.




Re: 105mm macro or 50mm with 2x TC

2002-11-06 Thread Fred
 I would like to ask which would you prefer to carry?

 A 105mm f/2.8 macro or a 50mm f/1.4 combined with a 2x
 teleconverter.

If I had to choose just one, I guess I'd pick the 50/1.4 and the TC
- just as long as it's the 2X Vivitar Macro-Focusing TC, so I could
do macro as well as scenics and portraits.

Fred





Re: 105mm macro or 50mm with 2x TC

2002-11-06 Thread Christian Skofteland
On Wednesday 06 November 2002 17:37, gfen wrote:
 On Wed, 6 Nov 2002, Christian Skofteland wrote:
  Do I get only one lens?  If I'm shooting Macros then I'll take the 105. 
  If I only get one lens and I need to do scenics then i'll take the 50 but
  I won't expect to use it effectively for close-ups.  The answer is to
  carry both.

 Macro with a 50? Easy enough solution (for me): reverse ring.

Yes, but your working distance is not as good as with the 105.  And.  the 
only accessory allowed was a 2x converter so you are cheating! g

Better yet give me both lenses and I can reverse the 50 on the 105 and get 2x 
magnification.

Christian




RE: 105mm macro or 50mm with 2x TC

2002-11-06 Thread J. C. O'Connell
The performance difference at 100/105 would
be tremendous. You can guess which way is better.

Although there would be the also substantial 
difference in having the ability to shoot
at 50 when needed.

Why not just carry the 50 and the 105 macro???

JCO

 -Original Message-
 From: Francis Alviar [mailto:alviar629030;yahoo.com]
 Sent: Wednesday, November 06, 2002 5:00 PM
 To: Pentax Discuss List
 Subject: 105mm macro or 50mm with 2x TC
 
 
 Hi folks,
 
 I would like to ask which would you prefer to carry?
 
 A 105mm f/2.8 macro or a 50mm f/1.4 combined with a 2x
 teleconverter.
 
 Thanks.
 
 
 Francis M. Alviar
 Irvine, CA
 
 
 
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 Do you Yahoo!?
 HotJobs - Search new jobs daily now
 http://hotjobs.yahoo.com/
 




Re: 105mm macro or 50mm with 2x TC

2002-11-06 Thread Pentxuser

In a message dated 11/6/02 5:01:14 PM, [EMAIL PROTECTED] writes:

 A 105mm f/2.8 macro or a 50mm f/1.4 combined with a 2x
teleconverter.

Thanks.

 

105 macro no question...
Vic