Now you look up. EF 14mm f/2.8L II USM, EF 24mm f/1.4 II USM. EF 35mm f/1.4 USM EF 50mm 1.2L USM , EF 85mm f/1.2 L II USM,. The look up EF 800mm f/5.6L Shall I go on? What do I shoot with over 300mm with Pentax
FA 31mm F1.8 Limited. Shots look ok. Looks like it has slow focusing speed, and so so bokeh (due to Ashperical), some CA issues and shittloads of Vignettes if you open it wide. I'm sure the FA 31mm will do fine for vacation and shooting pics of the kids in the backyard though. I guess if you stop it down enough and your clients aren't discriminating you can get some sharp photos out of it.
If you're serious about photography just buy a Canon EOS-1 D Mark IV with the 85mm L and be done with it.
Have a good one,
Professional photographer of 28 years.