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01-08-2011, 04:37 AM   #1
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Wide lenses for Pentax K7?

Hello to you all.

After 7 years of using SLR cameras I decided to get a dslr from pentax which is the Pentax K7 and I've got DA 18-55mm F3.5-5.6AL WR & SMC DA 55-300mm f/4-5.8 ED.

I really would like to buy a wide angle lens for my new pentax and I would like to know if there any lenses like tamron or sigma that could buy for the same use as the pentax lenses.If so please be kind and tell me what should I try to get because I will use them for interior design projects.


Also I'm not a rich guy so the price of the lens will have an important role in my decision.


Last edited by Parallax; 01-08-2011 at 06:05 AM.
01-08-2011, 07:36 AM   #2
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I found the DA14/2,8 to be the best and it is not the most expensive.
01-08-2011, 07:54 AM   #3
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Tamron 10-24 for interior and flash
not expensive and not to much distortions just keep sensor plane vertical
I use it for narrow kitchens and bathrooms best bang for bucks.
01-08-2011, 08:48 AM   #4
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Sigma 10-20 : there is a superb thread on here, take a look through it. Great lense for the money.

01-08-2011, 01:57 PM   #5
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Or look here,

https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/86234-15mm-lim...s-my-mind.html


I have a Tammy 10-24 and it is a great lens but a little voice in my head keeps saying "DA15Ltd......DA15Ltd......DA15Ltd......"

Cheerz

MZ
01-08-2011, 02:23 PM   #6
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I keep hearing the DA 15 Ltd and I must admit I have never tried it so can not comment on it. However I do have the Tamron 17-50/2.8 which I like to use ... but just this evening I was out shooting downtown ... and the 17-50 (and we could include a 15mm here) just didn't cut it for many shots (I would have been run over about 20 times trying to get the subject into the frame) ! LoL

I then got home and started to process ..... again I was struck by the sheer sharpness of the 10-20 even when pixel peeping at 100% to help me decide on my keepers.

Seriously, 10mm is just soooooo much more than 15mm. It really depends on whether the OP requires that type of width or not.
01-09-2011, 12:09 PM   #7
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The Sigma 10-20mm f 4-5.6 is an amazing lens, particularly if you want 10mm. The other Sigma UWA lenses are awesome too, but the original one is a little more price conscious, and offers great IQ and creative capabilities. It is very sharp, has great colors, and for UWA does an excellent job with flare. I saw a used one going for under $400 US.

That would be a great option for UWA, though there are others as well, depending upon just how price conscious you are. For wide angle, the Tamron 17-50mm 2,.8 and the Sigma 17-50mm 2.8 are great. The Sigma is a good deal more money, but offers HSM & optical stabilization. Sigma has a 18-50 2.8 Macro, which is more affordable, and nice too.

Just how much money can you afford towards your purchase? Make that decision, and decide if it is WA or UWA you are after and the decision will get much easier. I would look at many, many images from all the lenses you are considering, before purchasing anything. Also, sample owners' reviews, from a variety of sources, to get an even deeper look into the purchase, if vicariously. Best of luck, JT.
01-09-2011, 12:17 PM   #8
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I agree with JT: I think the Sigma 10-20mm would be very well suited to your needs.

01-09-2011, 01:30 PM   #9
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Is the Sigma 10-20 the better lense then the 12-24 Pentax, other then the extra 2mm on the wide end? I've been looking at both, mostly for indoor get together's.
My kit lense 18-55 is not wide enough. I don't need stright lines as some of you do, a little barrel won't hurt me. Thank's RC
01-09-2011, 07:21 PM   #10
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QuoteOriginally posted by Rick Clark Quote
Is the Sigma 10-20 the better lense then the 12-24 Pentax, other then the extra 2mm on the wide end?
Now that is a debate I'll steer clear of. After some agonizing, I opted for the Sigma and was quite pleased. I have no experience with the 12-24.
01-09-2011, 07:29 PM   #11
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QuoteQuote:
Rick Clark: Is the Sigma 10-20 the better lense then the 12-24 Pentax, other then the extra 2mm on the wide end? I've been looking at both, mostly for indoor get together's.
My kit lense 18-55 is not wide enough. I don't need stright lines as some of you do, a little barrel won't hurt me. Thank's RC
Both lenses have their pluses & minuses. They are both excellent. I own the 10-20mm and am very happy. The best thing you can do is visit the thread which showcases each lens, and observe carefully. This is not a question with a right or wrong answer: either pick makes you a winner.

JT
01-09-2011, 07:31 PM   #12
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The 15mm is calling out for you. i think that and the DA 35mm are such a great combo on the K7
01-10-2011, 02:30 AM   #13
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QuoteOriginally posted by Rick Clark Quote
Is the Sigma 10-20 the better lense then the 12-24 Pentax, other then the extra 2mm on the wide end? I've been looking at both, mostly for indoor get together's.
My kit lense 18-55 is not wide enough. I don't need stright lines as some of you do, a little barrel won't hurt me. Thank's RC
As JT said - there is no right or wrong pick, both are superb lenses. However you need to decide whether you need the extra 2mm (and that is quite considerable even if it doesn't sound like it - it's 20% more) or the 20% extra length.

Straight lines - easily fixed in software (e.g. PTLens) but make sure you allow yourself extra room when framing as straightening barrel distortion WILL crop off a considerable amount from both the sides AND the top.
01-10-2011, 03:37 AM   #14
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I've owned two wide angle lenses so far... the Sigma 10-20 and the Pentax DA15 Limited. I ended up selling the DA15 because I found the Sigma to be much more useful, consequently it spent far more time on my camera than the DA15. If I were to consider another wide angle lens, that would be the Sigma 8-16.

As a side note, Sigma stands by their products much longer than Pentax. Here in Canada, the DA15 comes with a 2 year warranty. My Sigma 10-20 came with a 10 year factory warranty. So not only is it much more versatile given it's range, but also it is backed up with a solid enduring warranty.

Just look at all the compelling the images in this link... https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/84539-sigma-10-20mm-club.html
01-10-2011, 04:48 AM   #15
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QuoteOriginally posted by JHD Quote
As a side note, Sigma stands by their products much longer than Pentax. Here in Canada, the DA15 comes with a 2 year warranty. My Sigma 10-20 came with a 10 year factory warranty. So not only is it much more versatile given it's range, but also it is backed up with a solid enduring warranty
Yeah, why doesn't Pentax show more confidence in it's products?
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