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12-18-2007, 06:02 PM   #1
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Sigma 24mm f/1.8 vs. Pentax 35mm f/2.0

Hi everyone,

I'm currently trying to decide between the following two lenses, and I was hoping to get some input.
Sigma 24mm f/1.8
Pentax 35mm f/2.0

I currently already have the Pentax 50mm f/1.4, and I love it. However I was taking some indoor shots at a xmas party recently, and I realized that the 50mm is just not wide enough for crowded indoor shots. My friends with 30mm prime lenses were able to get much better group shots.

I was thinking of getting the 35mm, but I was wondering if it would be too similar to my 50mm. My friend has a 30mm Sigma on his Nikon, and it produced very good shots. I did some quick searching, and people seem to have good results with the Sigma 24mm as well.

Thanks.

12-18-2007, 08:13 PM   #2
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Hi Henzo,
I bought the Sigma 24mm EX DG f1.8 about 2 years ago. I was after a fast prime to supplement my kit lens the Sig 18-125, particularly for low light situations. I was actually after a Pentax 50mm f1.4 but could not get one at the time and was offered a 'good' deal on the Sigma.

I like it a lot, and it spends a lot of time on the camera. It is also the lens I reach for if I want to try (emphasise try) and take a good shot or if the light is uncertain. It also comes into its own when travelling for indoor shots where flash is prohibited.

The only criticism of the Sig 24mm is that it is a lump of a thing, but the focal length is very, very handy and the image quality far outweighs any minor size considerations. I use it a lot for landscapes as well.

I have no experience with the pentax 35mm, but would question the focal length.
If you want me to post some shots I can do so.
Cheers.
12-18-2007, 08:44 PM   #3
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henzo,

I'm currently having some issues with a Sigma lens. If you plan to keep it through several camera upgrades, consider the Pentax for guaranteed compatibility. Additionally, I read rave reviews about the 35mm 2.0.
12-18-2007, 09:02 PM   #4
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35mm isn't very wide. I would recommend the 24mm. A good way to see if you'll need the extra wide-angle range is if you have the kit lens, through that on and shoot some indoor stuff. see where most of your shots are taken- at wider angles or narrower? if wider, go with the 24; if narower, go with the 35.

12-19-2007, 12:55 PM   #5
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QuoteOriginally posted by jvp Quote
henzo,

I'm currently having some issues with a Sigma lens. If you plan to keep it through several camera upgrades, consider the Pentax for guaranteed compatibility. Additionally, I read rave reviews about the 35mm 2.0.
JVP,

what kind of issues are you having?
12-19-2007, 01:23 PM   #6
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QuoteOriginally posted by henzo Quote
JVP,

what kind of issues are you having?
https://www.pentaxforums.com/forums/pentax-dslr-discussion/16563-k10d-lcd-tur...ly-random.html
12-19-2007, 10:08 PM   #7
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In the old days, it was recommended (by somebody) to have lenses that were 1/2X (or 2X) the focal length of the next lens up or down, otherwise they might be too similar. Seems logical, so I vote the 24mm.
12-19-2007, 10:11 PM   #8
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QuoteOriginally posted by SpecialK Quote
In the old days, it was recommended (by somebody) to have lenses that were 1/2X (or 2X) the focal length of the next lens up or down, otherwise they might be too similar. Seems logical, so I vote the 24mm.
The Press lens set was 28/55/135. I have a whole scrap book of newspaper pages with photos taken with a KX, an M 28/3.5, a K 55/1.8 and an M 135/3.5. Note that the angle of the wide is about 2x the normal. If the normal was 50, then it would probably be 24/50/120. (Noone ever has a lens that is long enough).

12-24-2007, 03:06 AM   #9
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I sold the 50/1.4 after buying the 35/2.. the 35/2 isn't very wide on DSLR of course, but it makes a great normal lens IMO... Of course if you want a wide angle the 24mm sigma is a lovely lens from what I have seen.. Just a bit on the bulky side...
12-24-2007, 04:47 AM   #10
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Hi Henzo

I agree with Grant, the Sigma 24 F1.8 is a very good lens. Unfortunately I'm at work and unable to supply any shots, but I've been very pleased with mine. I got mine second hand and I have a minor quibble in that the inside barrel is slightly loose, but it doesn't seem to have affected IQ in any way. Like most Sigma's the bokeh isn't perfect, but it's acceptable. I don't own the Pentax 35 so I can't give you a comparison

NaCl(a great indoor and "club" lens)H2O
12-24-2007, 06:46 PM   #11
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Sigma 24 f1.4 is quite bulky in deed. Though optical quality is great as an all round lens, its size can be an issue for some people.
12-27-2007, 03:49 PM   #12
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I just wanted to thank everyone for their input. From the responses, it looks like everyone is in favor of the sigma 24mm. I'll probably end up pulling the trigger within the next week.

For those that have it, how does it do as a outdoors/walk around lens? Thanks again.
12-27-2007, 05:08 PM   #13
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QuoteOriginally posted by henzo Quote
I just wanted to thank everyone for their input. From the responses, it looks like everyone is in favor of the sigma 24mm. I'll probably end up pulling the trigger within the next week.

For those that have it, how does it do as a outdoors/walk around lens? Thanks again.
It's OK if you are going to shoot a lot of scenery, but my own personal style of shooting I'd want something a little longer for walkabout, at least 50mm. 24mm doesn't have a lot of reach. But it is great for wide shots, and a pretty good close up lens too.

NaCl(my favorite walkabout prime is my 77 ltd)H2O
12-28-2007, 05:12 AM   #14
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How about the sigma 30mm f/1.4? Looks like a great lens and great focal length.
12-28-2007, 12:43 PM   #15
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QuoteOriginally posted by Deni Quote
How about the sigma 30mm f/1.4? Looks like a great lens and great focal length.
Sigma AF 30mm f/1.4 EX DC (Pentax K) - Photozone Review / Test Report
Pentax SMC-FA 35mm f/2 AL - Photozone Review / Test Report

vignetting & border/extreme corner sharpness of Sigma 30/1.4 are worse vs FA 35/2.
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