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11-14-2016, 04:27 AM   #1
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Pentax FA 35mm f2 AL vs Sigma 35mm f1.4 Art lens

I'm looking to expand my prime lens collection towards the wider end of the range with the first step being a 35mm full frame lens. The two lenses mentioned in the subject line seem like the logical candidates so opinions for or against either/both would be great. The question also arises whether either or these is sufficiently better than the Pentax DA 35mm f2.4 AL lens, which I understand works just fine in full frame and is around a quarter of the price.

11-14-2016, 07:56 AM - 1 Like   #2
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The da f2.4 is fine but I liked the FA 35 f2 better. The FA rendered different and I liked it better. The FA 31 is better but the size advantage clearly goes to the FA.

I have a declicked manual focus only FA 35 in the marketplace. It suffered s fall and was restored to functioning this way. That is a cheap way to determine if the lens renders the way you want.

The Sigma has a good reputation but is also supposed to be pretty bigo.
11-14-2016, 09:17 AM - 1 Like   #3
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I have neither lens, but it looks like an almost "apples to oranges" comparison. The Sigma is much larger, heaver and more expensive than the Pentax. According to reviews on Photozone, the Pentax has a very good image quality, but the Sigma is even better. Personally, I have the Pentax 35mm f.24; all plastic, but great image quality and the price is right. IMHO, it comes down to how much you want to spend, and how much you are willing to schlep around.

Last edited by mechmike10; 11-14-2016 at 06:47 PM.
11-14-2016, 03:52 PM - 1 Like   #4
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The FA35 and its younger sibling the DA35 have hybrid aspherical elements so are nice and sharp.

The FA31 has a genuine one piece aspherical element and nine rounded blades. Beautiful pics, very expensive.

The Sigma has what a heap of quality corrective glass can bring - astonishingly sharp, beautiful bokeh, f1.4, etc. Very heavy and bulky, but attractive pricing.


Last edited by clackers; 11-15-2016 at 04:23 PM.
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