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10-17-2013, 09:26 PM   #1
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Hello and some Wide Angle advice

Hi all, I'm a newbie here but a long time Pentax enthusiast.

There are heaps of great threads on here, but I'd love the opinions and expertise of these two lenses I've narrowed my choice down to - or good reasons why I've wrongly ignored others.

The Pentax DA 15mm f/4 and the Sigma 10-20mm f/3.5 are about as far as my budget can stretch and am looking specifically for something to compliment my Pentax DA 35mm f/2.4. I'm anticipating shooting indoor as much as landscapes at this stage, so fast, decent with indoor light, without breaking the bank just about sums up the perfect lens. Does this exist?? Haha.

Thanks in advance.

10-17-2013, 09:38 PM   #2
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Take a look here: DA 12-24mm vs Sigma and Tamron 10-24mm Comparison - Introduction - for an in depth look at some of the UWA zooms. I have the DA 12-24 f/4 and it works just fine for me. My widest prime is the DA 21mm Limited so I cannot help you there.
10-17-2013, 10:10 PM   #3
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I've not used either, but I have the Tamron 10-24 and use the 10mm end quite often, I would miss it if I did not have it. But there are a lot of people that have love affairs with the DA15 so it must be magical. I was actually set to buy the 15 when I was asked to shoot a wedding so I bought the Tamron thinking it would be more useful. I do like the Tamron but I would still like to get the 15 also. Thisn't much help, but if you want the extra width go to a 10-xx zoom, if you want the magic get the 15. I will say you would probably have a chance to get less flare from the 15 due to Pentax coatings.
10-17-2013, 10:13 PM   #4
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How about the pentax 14 f/2.8?
Seems designed for low light use with that aperture.

10-17-2013, 10:13 PM   #5
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For landscapes, on a tripod the DA 15mm is stellar. I used to own the slower 10-20 Sigma, and I liked the IQ but not the size. I do a lot of backpacking so I sold it for the DA 15mm. I have been very happy with the 15mm, but I don't do much indoor shooting. I guess with the decent high ISO performance of modern cameras combined with PP, it could do the indoor job.

Last edited by pixie; 10-17-2013 at 10:30 PM.
10-18-2013, 12:05 AM   #6
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I have two WA's. The Pentax DA 15mm f/4.0 Limited and the Sigma 8-16mm.

Both for different purposes.

For the OP, I recommend the 15mm Limited. It's great, but you need to stop it down to f/8.0 to get anything out of it, which means either reserving it for good light situations or using a tripod.

This is at f/8.0 on a K-5 IIs. However, I was experimenting using a B+W MRC Nano CPL filter which vignetted a bit due to the adaptor used, thus a bit of cropping.

The Sigma 8-16mm on a K-5 (Original) at 8mm at f/8.0 . . .

10-18-2013, 12:20 AM   #7
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I've had both. Originally I had the 10-20 and it's a lens I enjoyed using. It's a nice lens and I don't think many people would regret having one. But I traded that in and bought the 15. Why? Well, the 15 is wide enough for my needs, it's sharper, and it's so much smaller and lighter. So much easier to just slip in to your pocket. If I was out for the day I would think twice about whether I needed the 10-20 or not, because of it's size and weight. But the 15 can be brought along 'just in case'.
10-18-2013, 02:14 AM   #8
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Thank you everyone for your swift responses. I'm not sure if I'm any closer to choosing the right lens though!
The Pentax 14mm would be top of my list if I could justify its cost, which is why the 15mm prime or the 10-20mm zoom appear the best of the two at the peak of my budget. I do keep going back to the reviews of the Tamron, but they seem such varied responses.

Thanks again, and great to see all of your shots.

10-18-2013, 02:46 AM   #9
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Just to give a perspective on the DA14 verses DA15 question. I had both at one stage and also have a DA*16-50.

The DA14 is physically a much bigger and heavier lens that the DA15. The F2.8 is nice, but I found for indoor situations the DA*16-50 was much more versatile.

For landscapes and architecture I have found I liked the DA15 results more. In the end I sold the DA14 as I wasn't using it.

The DA14mm is a very nice lens, but clearly I have found I liked the 15mm more - size, weight, and images. However the 16-50 provides me with a good indoor option. The reality of the DA15 is it works best outside in reasonable light.
10-18-2013, 04:05 AM   #10
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QuoteOriginally posted by gcraw Quote
I'm anticipating shooting indoor as much as landscapes at this stage, so fast, decent with indoor light, without breaking the bank just about sums up the perfect lens. Does this exist?? Haha.
Yes, it's called Samyang 14mm f2.8:
Samyang 14mm F2.8 ED AS IF UMC Lens Reviews - Samyang Lenses - Pentax Lens Review Database
10-19-2013, 08:19 AM   #11
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In my opinion the Sigma 10 - 20mm 3.5 is not worth the extra money....and some say it is softer then the 4-5.6.
I have the Sigma 10 - 20 4 - 5.6. And think it is a great lens.

Good luck with your decision

10-21-2013, 11:43 AM   #12
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I can only add that I enjoyed the Sigma 8-16 while I rented it - that has a great perspective.
Also, I have the 10-17 Fisheye and at 17mm it's worth considering as a wide standard for this type of use.
12-17-2013, 07:58 PM   #13
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Thanks all for your responses.

I managed to get the Sigma 10-20mm f4-5.6 for $350 (Aus), which was by far the cheapest option. And it's definitely doing the job so far.
12-17-2013, 11:14 PM   #14
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Good choice, much easier to get filters for than the f3.5 version too (77mm vs 82mm)

You will enjoy it

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