Can you give me any pointers how to ease my problem -- the Murphy's law strikes and 9/10 of 35mm frames that I accept for printing are the last frames in a 6-frame strip. And of course that means that the film is very curly (when compared to frames in the middle of the 6-frame strip). Last time I printed 24x30cm print I had huge difficulties focusing so that the grain would be sharp in the whole image area. First I focused at f4 from the middle of the picture -- the grain was out of focus in the sides, even when stopped down to f16. Finally I got 90% pleasing result by focusing only from the "curly" side of the frame (= focusing as near as possiple from the side where film strip has been cut) and stopping down to f16. But still, the grain could be sharper...
Any trick how to make this easier? I would like to experience the ease of printing in f8 for example -- can't do that because the grain is out of focus then.
My equipment; Rolleimat Universal, Rolleimat's own sturdy 35mm metal filmholder (no glasses), sturdy easel.