I've used SFX with good results.Originally Posted by bmac
One of my next projects (If I can find some way of getting this mountain of "backed up" darkroom work off me) is to really "wring out" focusing with the current available IR films.
No one, it seems, has any trouble with focusing "far" VISIBLE red light, but increase the wavelength a *very* small amount, and, traditionaly, focusing seems to become nearly impossible. To me, there shouldn't be much of a difference.
I notice that on the latest crop of Hasselblad lenses, the red "IR" focusing index mark has been omitted. I wonder if that is because the "near-infrared" films currently in use do not require such a shift. Condsidering the last results from MACO 820 - lots of focus problems, although I meticulously used the "IR index" ... I need to do this "wringing".