Ok, just to link these shots to sample database, here are recent series of shots taken with Pentax K-01 and Super Takumar 50mm f1.4 early 8 element version.
(more about this outing and details on these shots can be found here :
Hmmm... Action shots with Super Takumar 50mm F1.4 (8-element) AND Pentax K-01 ??
All shots are either f1.4 , f2.0 or in between. Uncropped.
F1.4, 1/400th , ISO 320
2) F2.0, 1/125th s.
3) half way between 1.4 and 2.0. Anyhow got with the shutter speed up to 1/400th .s
4) half way between F1.4 and 2.0 - the bokeh still came out pretty good
5) between F1.4 and 2.0. 1/125th
6) between 1.4 and 2.0
7) F2.0
8) between 1.4 and 2.0
9) Probably F2.0 ISO 100