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03-26-2012, 06:42 PM   #1
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Lens comparison, what do you want to see?

We're due for another comparative lens review- I've got some ideas in case nobody chimes in, but what would you guys like to see?

Here are the comparative lens reviews we've posted so far:

DA* 16-50mm vs. Sigma and Tamron 17-50mm F2.8 Comparison - Introduction - PentaxForums.com
Tamron 90mm Macro vs Pentax 100mm WR: Review - Introduction - PentaxForums.com
DA 12-24mm vs Sigma and Tamron 10-24mm Comparison - Introduction - PentaxForums.com

One more is on its way: the Pentax 17-70mm vs Sigma 17-70mm.

So, you can pick any other lenses and we'll see if we can compare them! They have to be current products, and they have to be comparable- i.e. no comparing apples to oranges


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03-26-2012, 06:47 PM   #2
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I'd be interested in a comparison of Sigma & Tamron 70-200/2.8's and the DA*200 all at 200, or handicap the DA*60-250 in there at f/4.
Or maybe adding the Sigma 10-20 to the "12-24 review."

If you want to load the deck for Pentax, compare other "goes to 300mm" consumer zooms to the DA 55-300.

(Actually, I'm waiting for some moneyed soul to do the "mother of all tripod comparisons" like Lenstip did with filters.)

Last edited by panoguy; 03-26-2012 at 06:54 PM.
03-26-2012, 07:04 PM   #3
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panoguy has it close to what I would like to see:

Pentax 60-250
Tamron 70-200
Sigma 70-200

Now the I read panoguy's post again, I see he is trying to keep the playing table even and sticking with 2.8's with the DA*200 which does seem fair.

Anyway, any combination of the above - the 3 lenses I listed have been on my mind for quite a while - in fact almost pulled the trigger on the 60-250 this evening........
03-26-2012, 07:22 PM   #4
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How about a comparison of primes in the 30's? i.e. Sigma 30/1.4 vs. Pentax 31/1.8 vs. Pentax 35/2.8... et cetera. I also think a fisheye comparison would be cool.

03-26-2012, 07:55 PM - 1 Like   #5
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I think maybe a non premium lens comparison between say the Pentax sigma and tamron 'kit' lenses in the 18-200mm ish range. For those interested in the budget end
03-26-2012, 08:24 PM   #6
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I second panoguy's idea of having a version of the Sigma 10-20 included in the ultrawide comparison. Why not throw in the DA15 and DA14 as well? Nice to see how the primes stack up against the zooms...

standard wides: DA21 vs...

"travel zooms"...

DA560 review (when it comes out) vs... would be hot to trot
03-26-2012, 08:29 PM   #7
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Good topic and I can think of several, however these are somewhat eclectic comparisons that come up somewhat regularly ....
  • Compare the kit lens against its possible replacements. This would help folks wanting a lens but wanting something else than the kit right off the bat. It would also help folks looking to upgrade from the kit.
  • Compare the various portrait lenses.
  • Compare the DA 12-24 against the DA 14, DA 15, DA 21. There is a pretty regular question of if they should go the zoom or the prime route, and then which prime (or two).
  • Compare the normals - 40, 43, 50 and 55's

03-26-2012, 08:34 PM   #8
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Compare the DA 12-24 against the DA 14, DA 15, DA 21. There is a pretty regular question of if they should go the zoom or the prime route, and then which prime (or two).

I would like to see the better zooms ie Sigma 17-50 HSM OS compared to the primes in that range. Everyone may believe the primes rule but the zooms seem to be catching up.

03-26-2012, 08:43 PM   #9
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It would be interesting to see an 18-2xx comparison along with the 18-135.. but perhaps we can wait until the new roadmap model jumps in. Several older 18-200s and Sigma's update too, along with the DA 18-250.
03-26-2012, 09:15 PM   #10
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QuoteOriginally posted by jimr-pdx Quote
It would be interesting to see an 18-2xx comparison along with the 18-135.. but perhaps we can wait until the new roadmap model jumps in. Several older 18-200s and Sigma's update too, along with the DA 18-250.
This. Also some prime wars: DA55,FA50,Sigma50/1.4,Voigt 58/1.4,Zeiss 50/1.4.

You could do some legacy glass comparisons. Pick a focal length like 135mm and go to town. Include M42, K mount, Pentax, Russian glass, etc...
03-26-2012, 09:28 PM   #11
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QuoteOriginally posted by jeffshaddix Quote
This. Also some prime wars: DA55,FA50,Sigma50/1.4,Voigt 58/1.4,Zeiss 50/1.4.

You could do some legacy glass comparisons. Pick a focal length like 135mm and go to town. Include M42, K mount, Pentax, Russian glass, etc...
This one.

Would love to see how much "better" the DA* 55mm is >=]
03-26-2012, 09:30 PM   #12
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I think once you do the 70-200 class teles, I think you should switch to primes. Perhaps the FA 31 Limited vs. the Sigma 30 - only because the Sigma is the budget alternative to the 31 for many Pentaxians. Then perhaps the DA 35 f/2.4 vs. the DA 35 f2.8 Limited vs. the FA 35 f/2.0. The DA 40 Limited vs. the FA 43 Limited? I'm thinking aloud here. Oh... and just for giggles, how about tossing the DA 16-45 in with the DA/Sigma 17-70 contest?
03-26-2012, 10:12 PM   #13
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I was gonna be selfish and also suggest the 18-2xx comparison since I am currently in the market

Also, on another selfish note, I would love to see the DA* 55mm stacked up against something since I just picked one up
03-27-2012, 12:40 AM   #14
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How about a MF comparison with SMC Pentax 35mm F2, SMC Pentax-A 35mm F2, Voightlander Ultron 40 SL II, Zeiss Distagon T* 2/35 ZK and the Samyang 35/1.4 ?
Maybe leave the Ultron out since it is 40mm or compare it with the DA 40 limited.
03-27-2012, 12:40 AM   #15
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I would like to see Pentax 17-70 f4 SDM vs Sigma 17-70 2.8-4 HSM OS (also how OS works compared to SR)

Darn..did not see it's on the way Maybe add the OS comparison to it?
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