Above Left to Right: Pentax FA 43/1.9 Limited, Pentax FA645 45/2.8, Canon EF 40/2.8 STM; Tested on a Canon 5D3 135 Full Frame Body. (Remark: Both my Pentax lenses were Japanese made.)
Further to my last shootout test of the same, I've done the test again on a bright day, but on a different scene. Apertures from f/2.8 to f/11 have been tested per lens, at nearly the same time and at the same place. Camera was mounted on tripod and cable shutter release was used. Of course, the image settings of the camera are the same. In addition, all the protective filters were removed during the test.
The test pictures are uploaded and posted in the following album:-
http://smg.photobucket.com/user/RiceHigh/library/5Ds/40mm_Shootout_2
Original full-size pictures are available for download per picture page. So, go measurebate yourself for what are different! Still, I want your own findings, do share if you find some!