Re: Sigma 10-20 vs Pentax 12-24

[Godfrey DiGiorgi]

On May 8, 2008, at 9:11 AM, [EMAIL PROTECTED] wrote:

> Thank you all for your feedbacks!
>
> I bought the Pentax 12-24 f4 one... and already in love with the  
> lens :D
> I think I will have to buy a new cam for the other lenses because I  
> am not
> willing to take it off from the camera! :D :D :D

Good to hear it.

I feel the same way about the Leica Summilux-D 25/1.4 ASPH ... Since  
I bought it, I refuse to take it off one of my Olympus E-1 bodies  
except to put it on the L1 body. Luckily, I have two E-1s. ]'-)

G

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Re: Sigma 10-20 vs Pentax 12-24

[Godfrey DiGiorgi]

On May 8, 2008, at 6:21 AM, David Savage wrote:

> By less challenging, I mean you don't have to worry about the FE  
> perspective.

You have to worry about the rectilinear perspective ... keystoning,  
wide angle smearing, foreground-background size exaggeration have  
just as big an influence, to me, as curvilinear rendering.

Godfrey

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Re: Sigma 10-20 vs Pentax 12-24

[timber]

Thank you all for your feedbacks!

I bought the Pentax 12-24 f4 one... and already in love with the lens :D
I think I will have to buy a new cam for the other lenses because I am not
willing to take it off from the camera! :D :D :D

Cheers,
.timber


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Re: Sigma 10-20 vs Pentax 12-24

[David Savage]

2008/5/8 Godfrey DiGiorgi <[EMAIL PROTECTED]>:
> Of these I like
>
>
>  http://farm3.static.flickr.com/2361/2264457467_3715e407a7_o.jpg
>
> http://farm3.static.flickr.com/2070/1873614000_eb7bcffdb4_o.jpg
>
> http://farm3.static.flickr.com/2391/2105976158_f5943358b8_o.jpg
>
> http://farm2.static.flickr.com/1207/1156628029_59615df340_o.jpg

Thanks Godfrey

>  I don't know that a rectilinear ultrawide is that much less
>  challenging to use compared to an FE, but it is appropriate to a
>  greater range of what I shoot, it seems. In fisheye lenses, I have
>  both the DA10-17 that I use on the K10D and the Pentax Fish-Eye-
>  Takumar that I use on the panny and oly bodies, in rectilinears I
>  have the DA14 for the K10D and ZD 11-22 for the  panny and oly.
>  Overall I get good results with both but I find FE work becomes
>  somewhat gimmicky looking a little faster than rectilinear work.

By less challenging, I mean you don't have to worry about the FE perspective.

Cheers,

Dave

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Re: Sigma 10-20 vs Pentax 12-24

[P. J. Alling]

>
> with the K10D and 16-50 I just let it all hang out.)
Way, way, way, too much information...

Mark Roberts wrote:
> David Savage wrote:
>   
>> 2008/5/7 Mark Roberts <[EMAIL PROTECTED]>:
>> 
>>>  I always loved its image quality. The main reason I went to the Pentax
>>>  16-50 was for the weather sealing, which can be important for the kind
>>>  of photography I like most. (How some of my cameras and lenses have
>>>  survived downpours on Grandfather Mountain and elsewhere I'll never know!)
>>>   
>> To me it suggests that the whole weather sealing thing may be a bit of
>> a sales gimmick.
>> 
>
> I dare you to test that hypothesis on your own gear!
> I know I wouldn't submit non-sealed equipment to what I've put my K10D 
> and 16-50/2.8 through! (With the ist-D and non-sealed lenses I at least 
> tried to protect my gear in the rain, with the K10D and 16-50 I just let 
> it all hang out.)
>
>   


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


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Re: Sigma 10-20 vs Pentax 12-24

[Godfrey DiGiorgi]

Of these I like

http://farm3.static.flickr.com/2361/2264457467_3715e407a7_o.jpg
http://farm3.static.flickr.com/2070/1873614000_eb7bcffdb4_o.jpg
http://farm3.static.flickr.com/2391/2105976158_f5943358b8_o.jpg
http://farm2.static.flickr.com/1207/1156628029_59615df340_o.jpg

I don't know that a rectilinear ultrawide is that much less  
challenging to use compared to an FE, but it is appropriate to a  
greater range of what I shoot, it seems. In fisheye lenses, I have  
both the DA10-17 that I use on the K10D and the Pentax Fish-Eye- 
Takumar that I use on the panny and oly bodies, in rectilinears I  
have the DA14 for the K10D and ZD 11-22 for the  panny and oly.  
Overall I get good results with both but I find FE work becomes  
somewhat gimmicky looking a little faster than rectilinear work.

Shooting interiors at Alcatraz with the DA14 primarily last year, I  
started wishing for either a DA12-24 (or the outstanding Olympus ZD  
7-14) as many of the spaces were too tight even for a 90 degree  
diagonal FoV. The more square format of the Panny and Oly bodies  
seems to serve me better for an ultrawide perspective, however.

Godfrey


On May 7, 2008, at 4:44 AM, David Savage wrote:

> Ahhh... but there is fisheye & then there is fisheye:
>
> 
> 
> 
> 
>
> 
> BTW thats my head bottom centre :-)
>
> 
> 
> 
>
> I love DA 10-17mm FE in crowds & at parties, framing & viewfinder use
> is optional :-)
>
> While a rectilinear lens will be less challenging to use, the FE is
> just so much fun & opens up some real creative possibilities.
>
> Getting back on topic, I'd go for the DA 12-24mm. But I have a real
> loathing for Sigma products.
>
> Just my 0.02c
>
> Dave
>

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Re: Sigma 10-20 vs Pentax 12-24

[Mark Roberts]

David Savage wrote:
> 2008/5/7 Mark Roberts <[EMAIL PROTECTED]>:
>> David Savage wrote:
>>  > 2008/5/7 Mark Roberts <[EMAIL PROTECTED]>:
>>  >>  I always loved its image quality. The main reason I went to the Pentax
>>  >>  16-50 was for the weather sealing, which can be important for the kind
>>  >>  of photography I like most. (How some of my cameras and lenses have
>>  >>  survived downpours on Grandfather Mountain and elsewhere I'll never 
>> know!)
>>  >
>>  > To me it suggests that the whole weather sealing thing may be a bit of
>>  > a sales gimmick.
>>
>>  I dare you to test that hypothesis on your own gear!
> 
> Given you're previous comment it sounds like you have yourself.

Oh, I haven't given the non-sealed gear anything *near* the workout I've 
given the sealed stuff!

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Re: Sigma 10-20 vs Pentax 12-24

[David Savage]

2008/5/7 Mark Roberts <[EMAIL PROTECTED]>:
>
> David Savage wrote:
>  > 2008/5/7 Mark Roberts <[EMAIL PROTECTED]>:
>  >>  I always loved its image quality. The main reason I went to the Pentax
>  >>  16-50 was for the weather sealing, which can be important for the kind
>  >>  of photography I like most. (How some of my cameras and lenses have
>  >>  survived downpours on Grandfather Mountain and elsewhere I'll never 
> know!)
>  >
>  > To me it suggests that the whole weather sealing thing may be a bit of
>  > a sales gimmick.
>
>  I dare you to test that hypothesis on your own gear!

Given you're previous comment it sounds like you have yourself.

I've used the FA 50mm f1.4, DA 16-45mm in constant moderate rain on
the *istD with no ill effects.

While I don't doubt that weather sealing has benefits, given that the
sealing isn't rated to any specific international standard I suspect
that some people are going to put too much faith in the sealing & use
their kit in really bad conditions only to have it fail.

Cheers,

Dave

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Re: Sigma 10-20 vs Pentax 12-24

[timber]

> I dare you to test that hypothesis on your own gear!
> I know I wouldn't submit non-sealed equipment to what I've put my K10D
> and 16-50/2.8 through! (With the ist-D and non-sealed lenses I at least
> tried to protect my gear in the rain, with the K10D and 16-50 I just let
> it all hang out.)

Use russian lenses :D I keep my K20D with Helios M44-6 off from rain for
only one reason: the My little pony sticker on the K20D could get too wet
and might get off the cam (again)! :P But other than that... the K20D+Old
MF lenses survived heavy raining many times.

Cheers,
.t


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Weather Sealing (was Re: Sigma 10-20 vs Pentax 12-24)

[timber]

> To me it suggests that the whole weather sealing thing may be a bit of
> a sales gimmick.
>
> Cheers,
>
> Dave

On lens? I think yes. On body? Sure not :D

I've used K10D/K20D in rain, snow, dust etc.
Once I was with a group of photographers in a big snowfall. Line up was: 5
Canon EOS 350D/400D, 1 Nikon D50, 1 Pentax K10D. 2 of the 5 Canons ended
up 'acting strangely', 2 guys had a home made camera-umbrella for their
Canons which was mounting in the flash shoe :D, the Nikon guy prefered to
keep his cam in bag, I was shooting with old manual lenses on... and no
problems at all :D

I really love Pentax' weather sealing. Even with lens from 70's it keeps
my camera safe in almost all kind of weather.

Cheers,
.t


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Re: Sigma 10-20 vs Pentax 12-24

[John Whittingham]

Daveyou got a flame proof suit by any chance?  8)

John

On Wed, 7 May 2008 22:37:49 +0800, David Savage wrote
> 2008/5/7 Mark Roberts <[EMAIL PROTECTED]>:
> >  I always loved its image quality. The main reason I went to the Pentax
> >  16-50 was for the weather sealing, which can be important for the kind
> >  of photography I like most. (How some of my cameras and lenses have
> >  survived downpours on Grandfather Mountain and elsewhere I'll never 
know!)
> 
> To me it suggests that the whole weather sealing thing may be a bit 
> of a sales gimmick.
> 
> Cheers,
> 
> Dave
> 
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Re: Sigma 10-20 vs Pentax 12-24

[Mark Roberts]

David Savage wrote:
> 2008/5/7 Mark Roberts <[EMAIL PROTECTED]>:
>>  I always loved its image quality. The main reason I went to the Pentax
>>  16-50 was for the weather sealing, which can be important for the kind
>>  of photography I like most. (How some of my cameras and lenses have
>>  survived downpours on Grandfather Mountain and elsewhere I'll never know!)
> 
> To me it suggests that the whole weather sealing thing may be a bit of
> a sales gimmick.

I dare you to test that hypothesis on your own gear!
I know I wouldn't submit non-sealed equipment to what I've put my K10D 
and 16-50/2.8 through! (With the ist-D and non-sealed lenses I at least 
tried to protect my gear in the rain, with the K10D and 16-50 I just let 
it all hang out.)

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Re: Sigma 10-20 vs Pentax 12-24

[David Savage]

2008/5/7 Mark Roberts <[EMAIL PROTECTED]>:
>  I always loved its image quality. The main reason I went to the Pentax
>  16-50 was for the weather sealing, which can be important for the kind
>  of photography I like most. (How some of my cameras and lenses have
>  survived downpours on Grandfather Mountain and elsewhere I'll never know!)

To me it suggests that the whole weather sealing thing may be a bit of
a sales gimmick.

Cheers,

Dave

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Re: Sigma 10-20 vs Pentax 12-24

[Mark Roberts]

John Whittingham wrote:
> 
> On Wed, 07 May 2008 09:36:56 -0400, Mark Roberts wrote
>> John Whittingham wrote:
>>>
>>> Did you at sometime own the Tamron 17-35 f/2.8-4?
>> Yes I did. I sold it when I bought the Pentax 16-50/2.8 but I always 
>> found the Tamron to be a wonderful lens. Highly recommended. They 
>> stopped making it in Pentax mount, at least for a while.
>>
 > Good to know you have a positive impression, I've been offered one at
 > reasonable cost and I'm trying to make a decision. It would make a
 > good wide to normal zoom FL wise.

I always loved its image quality. The main reason I went to the Pentax 
16-50 was for the weather sealing, which can be important for the kind 
of photography I like most. (How some of my cameras and lenses have 
survived downpours on Grandfather Mountain and elsewhere I'll never know!)



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Re: Sigma 10-20 vs Pentax 12-24

[John Whittingham]

Thanks Mark

Good to know you have a positive impression, I've been offered one at 
reasonable cost and I'm trying to make a decision. It would make a good wide 
to normal zoom FL wise.

Regards,

John

On Wed, 07 May 2008 09:36:56 -0400, Mark Roberts wrote
> John Whittingham wrote:
> > Hi Mark
> > 
> > Did you at sometime own the Tamron 17-35 f/2.8-4?
> 
> Yes I did. I sold it when I bought the Pentax 16-50/2.8 but I always 
> found the Tamron to be a wonderful lens. Highly recommended. They 
> stopped making it in Pentax mount, at least for a while.
> 
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Re: Sigma 10-20 vs Pentax 12-24

[Mark Roberts]

John Whittingham wrote:
> Hi Mark
> 
> Did you at sometime own the Tamron 17-35 f/2.8-4?

Yes I did. I sold it when I bought the Pentax 16-50/2.8 but I always 
found the Tamron to be a wonderful lens. Highly recommended. They 
stopped making it in Pentax mount, at least for a while.

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Re: Sigma 10-20 vs Pentax 12-24

[John Whittingham]

Hi Mark

Did you at sometime own the Tamron 17-35 f/2.8-4?

Regards,

John

On Wed, 07 May 2008 09:07:19 -0400, Mark Roberts wrote
> Timber wrote:
> > 
> > I am planning to buy a WIDE angle lens. I am hesitating between the 
> > Sigma 10-20 and the Pentax 12-24 (maybe Pentax 10-17 Fisheye)
> 
> Hmm, I'm pondering the same choice myself. I don't have any 
> experience with either lens.
> 
> I've had nothing but excellent experiences with the Sigma EX lenses: 
> My EX300/2.8 is wonderful and the EX180/3.5 Macro is #&@^ing 
> amazing. I expect the Pentax is a little better; the question is 
> whether it's *enough* better to justify the big price difference...
> 
> What I really want is a 10mm or 12mm prime, but no one makes one. Yet.
> 
> I do own the 10-17 Fisheye and it's a really fun lens but the only 
> reason to buy a fisheye is if you actually want to use the fisheye 
> effect, so it's in a different class from the other two, IMO. Also,
>  it's   not as sharp as a Sigma EX or my Pentax rectilinear zooms.
> 
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> 
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Technician




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Re: Sigma 10-20 vs Pentax 12-24

[Mark Roberts]

Timber wrote:
> 
> I am planning to buy a WIDE angle lens. I am hesitating between the 
> Sigma 10-20 and the Pentax 12-24 (maybe Pentax 10-17 Fisheye)

Hmm, I'm pondering the same choice myself. I don't have any experience 
with either lens.

I've had nothing but excellent experiences with the Sigma EX lenses: My 
EX300/2.8 is wonderful and the EX180/3.5 Macro is #&@^ing amazing. I 
expect the Pentax is a little better; the question is whether it's 
*enough* better to justify the big price difference...

What I really want is a 10mm or 12mm prime, but no one makes one. Yet.

I do own the 10-17 Fisheye and it's a really fun lens but the only 
reason to buy a fisheye is if you actually want to use the fisheye 
effect, so it's in a different class from the other two, IMO. Also, it's 
  not as sharp as a Sigma EX or my Pentax rectilinear zooms.



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Re: Sigma 10-20 vs Pentax 12-24

[David Savage]

Ahhh... but there is fisheye & then there is fisheye:







BTW thats my head bottom centre :-)





I love DA 10-17mm FE in crowds & at parties, framing & viewfinder use
is optional :-)

While a rectilinear lens will be less challenging to use, the FE is
just so much fun & opens up some real creative possibilities.

Getting back on topic, I'd go for the DA 12-24mm. But I have a real
loathing for Sigma products.

Just my 0.02c

Dave

On Wed, May 7, 2008 at 10:44 AM, Paul Stenquist <[EMAIL PROTECTED]> wrote:
> The Pentax lens is excellent. It has been a money maker and a
>  pleasure for me. I have no experience with that particular Sigma
>  lens, but my experience with the Sigma brand in general would give me
>  pause. And I wouldn't buy a fisheye unless you want to shoot fisheye
>  pics. Yes, you can correct in post, but you'll sacrifice image
>  quality. Every time you move a pixel you lose something.
>  Paul
>
>
> On May 6, 2008, at 5:45 PM, Timber wrote:
>  > Hi list!
>  >
>  > I am planning to buy a WIDE angle lens. I am hesitating between the
>  > Sigma 10-20 and the Pentax 12-24 (maybe Pentax 10-17 Fisheye)
>  >
>  > As the price the Pentax 12-24 is almost 2 times as the Sigma 10-20 but
>  > as I read the reviews both are good lens. Actually I am wondering
>  > if the
>  > Pentax one worths it's price compared to the Sigma one or should I go
>  > for the Sigma? Is there any noticeable IQ or CA advantage to the
>  > Pentax?
>  > Some says the Sigma becomes best if stopped down... but I would
>  > like to
>  > have a lens which is good at wide open too.
>  >
>  > So any advice? Is the Pentax that much better than the Sigma as the
>  > price shows or not? :D
>  >
>  > Thanks,
>  > .t

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Re: Sigma 10-20 vs Pentax 12-24

[John Whittingham]

The Sigma's a good lens for the money, I've had no problems with flare, the 
front element is not that large in comparison to some. I couldn't put it 
down when I first got it. I'm sure the Pentax is also a very fine lens. 

Sample image from last summer:

http://photo.net/photodb/photo?photo_id=6372564

Large version:

http://photo.net/photodb/photo?photo_id=6372564&size=lg

Regards,

John

On Tue, 06 May 2008 23:45:02 +0200, Timber wrote
> Hi list!
> 
> I am planning to buy a WIDE angle lens. I am hesitating between the 
> Sigma 10-20 and the Pentax 12-24 (maybe Pentax 10-17 Fisheye)
> 
> As the price the Pentax 12-24 is almost 2 times as the Sigma 10-20 
> but as I read the reviews both are good lens. Actually I am 
> wondering if the Pentax one worths it's price compared to the Sigma 
> one or should I go for the Sigma? Is there any noticeable IQ or CA 
> advantage to the Pentax? Some says the Sigma becomes best if stopped 
> down... but I would like to have a lens which is good at wide open too.
> 
> So any advice? Is the Pentax that much better than the Sigma as the 
> price shows or not? :D
> 
> Thanks,
> .t
> 
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Re: Sigma 10-20 vs Pentax 12-24

[David J Brooks]

I have the Sigma in Nikon mount.

Not much use, but i like what it has given me so far.

Dave

On Tue, May 6, 2008 at 5:45 PM, Timber <[EMAIL PROTECTED]> wrote:
> Hi list!
>
>  I am planning to buy a WIDE angle lens. I am hesitating between the
>  Sigma 10-20 and the Pentax 12-24 (maybe Pentax 10-17 Fisheye)
>
>  As the price the Pentax 12-24 is almost 2 times as the Sigma 10-20 but
>  as I read the reviews both are good lens. Actually I am wondering if the
>  Pentax one worths it's price compared to the Sigma one or should I go
>  for the Sigma? Is there any noticeable IQ or CA advantage to the Pentax?
>  Some says the Sigma becomes best if stopped down... but I would like to
>  have a lens which is good at wide open too.
>
>  So any advice? Is the Pentax that much better than the Sigma as the
>  price shows or not? :D
>
>  Thanks,
>  .t
>
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Equine Photography
www.caughtinmotion.com
http://brooksinthecountry.blogspot.com/
Ontario Canada

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RE: Sigma 10-20 vs Pentax 12-24

[Rod Connan]

I have found the Sigma 10-20 very resistant to flare.

The sun was behind very thin cloud in this shot,
http://rconn.zenfolio.com/p1019193613/?photo=h39448641#960792129 and you can
tell this by the water reflection. I am satisfied :)

PS - click on the image to get a full screen version.

Rod

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Rob
Brigham
Sent: Wednesday, 7 May 2008 8:46 AM

One thing I would consider is what you want to use the lens for.  For
me, wide angles are generally for landscape photography and this
introduces an additional issue to consider - the sun...  The Pentax SMC
coating has always been far better than Sigma at avoiding flare and
ghosting and for this reason alone I would strongly consider it.

Don't get me wrong - I have a lot of Sigma glass and many of the EX
lenses are great but these particular lenses are going to have a bug
hunk of glass catching the sunlight.

I think these are both very fine lenses, and neither would be a bad
choice but my money would be on the Pentax.  Mind you I also buy my
Pentax gear from somewhere that give me a free 3 year guarantee which
helps.

Rob 

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
Timber
Sent: 06 May 2008 22:45

Hi list!

I am planning to buy a WIDE angle lens. I am hesitating between the 
Sigma 10-20 and the Pentax 12-24 (maybe Pentax 10-17 Fisheye)

As the price the Pentax 12-24 is almost 2 times as the Sigma 10-20 but 
as I read the reviews both are good lens. Actually I am wondering if the

Pentax one worths it's price compared to the Sigma one or should I go 
for the Sigma? Is there any noticeable IQ or CA advantage to the Pentax?

Some says the Sigma becomes best if stopped down... but I would like to 
have a lens which is good at wide open too.

So any advice? Is the Pentax that much better than the Sigma as the 
price shows or not? :D

Thanks,
.t



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Re: Sigma 10-20 vs Pentax 12-24

[Paul Stenquist]

The Pentax lens is excellent. It has been a money maker and a  
pleasure for me. I have no experience with that particular Sigma  
lens, but my experience with the Sigma brand in general would give me  
pause. And I wouldn't buy a fisheye unless you want to shoot fisheye  
pics. Yes, you can correct in post, but you'll sacrifice image  
quality. Every time you move a pixel you lose something.
Paul
On May 6, 2008, at 5:45 PM, Timber wrote:
> Hi list!
>
> I am planning to buy a WIDE angle lens. I am hesitating between the
> Sigma 10-20 and the Pentax 12-24 (maybe Pentax 10-17 Fisheye)
>
> As the price the Pentax 12-24 is almost 2 times as the Sigma 10-20 but
> as I read the reviews both are good lens. Actually I am wondering  
> if the
> Pentax one worths it's price compared to the Sigma one or should I go
> for the Sigma? Is there any noticeable IQ or CA advantage to the  
> Pentax?
> Some says the Sigma becomes best if stopped down... but I would  
> like to
> have a lens which is good at wide open too.
>
> So any advice? Is the Pentax that much better than the Sigma as the
> price shows or not? :D
>
> Thanks,
> .t
>
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Re: Sigma 10-20 vs Pentax 12-24

[Rick Womer]

My 10-17 is my favorite lens.  Not the most used
(that's the 16-45), but my favorite.  The fisheye
distortion is there if you want to use it, and
controllable when you don't.

Rick

--- Timber <[EMAIL PROTECTED]> wrote:

> Hi list!
> 
> I am planning to buy a WIDE angle lens. I am
> hesitating between the 
> Sigma 10-20 and the Pentax 12-24 (maybe Pentax 10-17
> Fisheye)
> 
> As the price the Pentax 12-24 is almost 2 times as
> the Sigma 10-20 but 
> as I read the reviews both are good lens. Actually I
> am wondering if the 
> Pentax one worths it's price compared to the Sigma
> one or should I go 
> for the Sigma? Is there any noticeable IQ or CA
> advantage to the Pentax? 
> Some says the Sigma becomes best if stopped down...
> but I would like to 
> have a lens which is good at wide open too.
> 
> So any advice? Is the Pentax that much better than
> the Sigma as the 
> price shows or not? :D
> 
> Thanks,
> .t
> 
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> 


http://www.photo.net/photos/RickW


  

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Re: Sigma 10-20 vs Pentax 12-24

[P. J. Alling]

Are "bug hunk of glass" lenses compound?

Rob Brigham wrote:
> One thing I would consider is what you want to use the lens for.  For
> me, wide angles are generally for landscape photography and this
> introduces an additional issue to consider - the sun...  The Pentax SMC
> coating has always been far better than Sigma at avoiding flare and
> ghosting and for this reason alone I would strongly consider it.
>
> Don't get me wrong - I have a lot of Sigma glass and many of the EX
> lenses are great but these particular lenses are going to have a bug
> hunk of glass catching the sunlight.
>
> I think these are both very fine lenses, and neither would be a bad
> choice but my money would be on the Pentax.  Mind you I also buy my
> Pentax gear from somewhere that give me a free 3 year guarantee which
> helps.
>
> Rob 
>
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
> Timber
> Sent: 06 May 2008 22:45
> To: Pentax-Discuss Mail List
> Subject: Sigma 10-20 vs Pentax 12-24
>
> Hi list!
>
> I am planning to buy a WIDE angle lens. I am hesitating between the 
> Sigma 10-20 and the Pentax 12-24 (maybe Pentax 10-17 Fisheye)
>
> As the price the Pentax 12-24 is almost 2 times as the Sigma 10-20 but 
> as I read the reviews both are good lens. Actually I am wondering if the
>
> Pentax one worths it's price compared to the Sigma one or should I go 
> for the Sigma? Is there any noticeable IQ or CA advantage to the Pentax?
>
> Some says the Sigma becomes best if stopped down... but I would like to 
> have a lens which is good at wide open too.
>
> So any advice? Is the Pentax that much better than the Sigma as the 
> price shows or not? :D
>
> Thanks,
> .t
>
>   


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


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RE: Sigma 10-20 vs Pentax 12-24

[Rob Brigham]

One thing I would consider is what you want to use the lens for.  For
me, wide angles are generally for landscape photography and this
introduces an additional issue to consider - the sun...  The Pentax SMC
coating has always been far better than Sigma at avoiding flare and
ghosting and for this reason alone I would strongly consider it.

Don't get me wrong - I have a lot of Sigma glass and many of the EX
lenses are great but these particular lenses are going to have a bug
hunk of glass catching the sunlight.

I think these are both very fine lenses, and neither would be a bad
choice but my money would be on the Pentax.  Mind you I also buy my
Pentax gear from somewhere that give me a free 3 year guarantee which
helps.

Rob 

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
Timber
Sent: 06 May 2008 22:45
To: Pentax-Discuss Mail List
Subject: Sigma 10-20 vs Pentax 12-24

Hi list!

I am planning to buy a WIDE angle lens. I am hesitating between the 
Sigma 10-20 and the Pentax 12-24 (maybe Pentax 10-17 Fisheye)

As the price the Pentax 12-24 is almost 2 times as the Sigma 10-20 but 
as I read the reviews both are good lens. Actually I am wondering if the

Pentax one worths it's price compared to the Sigma one or should I go 
for the Sigma? Is there any noticeable IQ or CA advantage to the Pentax?

Some says the Sigma becomes best if stopped down... but I would like to 
have a lens which is good at wide open too.

So any advice? Is the Pentax that much better than the Sigma as the 
price shows or not? :D

Thanks,
.t

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Re: Sigma 10-20 vs Pentax 12-24

[Amita Guha]

Timber, there was just a thread on this topic on April 22 - 23 if you
check the archives. :)

Amita

On Tue, May 6, 2008 at 5:45 PM, Timber <[EMAIL PROTECTED]> wrote:
> Hi list!
>
>  I am planning to buy a WIDE angle lens. I am hesitating between the
>  Sigma 10-20 and the Pentax 12-24 (maybe Pentax 10-17 Fisheye)
>
>  As the price the Pentax 12-24 is almost 2 times as the Sigma 10-20 but
>  as I read the reviews both are good lens. Actually I am wondering if the
>  Pentax one worths it's price compared to the Sigma one or should I go
>  for the Sigma? Is there any noticeable IQ or CA advantage to the Pentax?
>  Some says the Sigma becomes best if stopped down... but I would like to
>  have a lens which is good at wide open too.
>
>  So any advice? Is the Pentax that much better than the Sigma as the
>  price shows or not? :D
>
>  Thanks,
>  .t
>
>  --
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>  PDML@pdml.net
>  http://pdml.net/mailman/listinfo/pdml_pdml.net
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Re: Sigma 10-20 vs Pentax 12-24

[Godfrey DiGiorgi]

Sigma lens quality is extremely variable. For that reason I stick  
with Pentax lenses, which have been less likely to have problems  
right out of the box.

G

On May 6, 2008, at 2:45 PM, Timber wrote:

> Hi list!
>
> I am planning to buy a WIDE angle lens. I am hesitating between the
> Sigma 10-20 and the Pentax 12-24 (maybe Pentax 10-17 Fisheye)
>
> As the price the Pentax 12-24 is almost 2 times as the Sigma 10-20 but
> as I read the reviews both are good lens. Actually I am wondering  
> if the
> Pentax one worths it's price compared to the Sigma one or should I go
> for the Sigma? Is there any noticeable IQ or CA advantage to the  
> Pentax?
> Some says the Sigma becomes best if stopped down... but I would  
> like to
> have a lens which is good at wide open too.
>
> So any advice? Is the Pentax that much better than the Sigma as the
> price shows or not? :D
>

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Sigma 10-20 vs Pentax 12-24

[Timber]

Hi list!

I am planning to buy a WIDE angle lens. I am hesitating between the 
Sigma 10-20 and the Pentax 12-24 (maybe Pentax 10-17 Fisheye)

As the price the Pentax 12-24 is almost 2 times as the Sigma 10-20 but 
as I read the reviews both are good lens. Actually I am wondering if the 
Pentax one worths it's price compared to the Sigma one or should I go 
for the Sigma? Is there any noticeable IQ or CA advantage to the Pentax? 
Some says the Sigma becomes best if stopped down... but I would like to 
have a lens which is good at wide open too.

So any advice? Is the Pentax that much better than the Sigma as the 
price shows or not? :D

Thanks,
.t

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