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FA 50 1.4 vs DA 50 1.8

Started Mar 31, 2015 | Questions thread
karet Contributing Member • Posts: 504
Re: FA 50 1.4 vs DA 50 1.8

JNR wrote:

karet wrote:

Have a look at comparisons of bokeh. I like the octagonal shape of highlights I get with the FA 50 1.4 at around f 2.8 or f 3.5 . You would loose that when you go for the DA lens.

Regards,

Karet

Respectfully, I would disagree. The f/1.4 has 8 linear blades that create an unnatural symmetry easily picked up by the eye. The DA has 7 rounded blades that create a much more rounded look between f/2.4 and f/8 (roughly), and the critical eye is far less drawn to the more natural appearance created by odd-numbered blades which are not in opposition to each other.

Not that the bokeh overall is much superior to the f/1.4 look IMHO, but it most certainly is not worse.

Hmm, I was a bit fast, didn't check the blades and thought it had only 5. You're right, 7 rounded blades, it will probably look allright.

Karet

 karet's gear list:karet's gear list
Nikon Coolpix 5200 Pentax K-5 II Pentax K-3 Pentax smc FA 50mm F1.4 Pentax smc DA 16-45mm F4 ED AL +9 more
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