Originally posted by barbosas Great shots.
What setup do you have for IR?
Thanks!
After working my way through some older bodies I then converted a few K20D's, then finally bit the bullet and did the K7. It has an 830nm filter in place of the original IR-blocking filter and dust-shaker glass. The lens to sensor position is adjusted so that the focus range in IR is still more or less where it should be, although that varies according to the lens characteristics in IR.
With the Samyang I loosened the focus ring and then set it so that infinity focus is with the ring on the infinity position, this allow estimated focus to be set easily. Otherwise it is difficult because everything looks in focus on the screen.
The shots above had exposures of 1/50th at f/6.3, ISO 200.