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Forum: Pentax SLR Lens Discussion 07-08-2018, 06:14 PM  
FA 50 F1.4 or A 50 F1.7?
Posted By D1N0
Replies: 19
Views: 1,909
Nope no mix up. There are a lot of OOF highlights in the sample pics, those are not really the same thing as bokeh.
Forum: Pentax SLR Lens Discussion 07-08-2018, 05:49 AM  
FA 50 F1.4 or A 50 F1.7?
Posted By D1N0
Replies: 19
Views: 1,909
I find the 50 f1.4 lenses more special than the 50 f1.7 lenses by Pentax.

This is a Pentax-A 50mm F1.4 wide open:


This is a Pentax-m 50mm F1.7 wide open:


This is a Pentax FA 50mm F1.7 wide open:


Both 1.7 lenses perform quite similar (note that some difference in rendering is due to lighting differences). Also the Pentax-m was shot on the K-5, the other two on the K-1.


Keep in mind it is pretty difficult to focus wide aperture lenses at maximum aperture.
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