Roger Rouch
21-Nov-1999, 10:05
I have been considering getting a 6X7 roll film back for my 4X5. My purpose is to reduce my film costs for some shots shots and for practice, and still have th e 4X5 option for the hopefully dynamite shots. There are a couple of basic ques tions I've been wondering about.
Reviewing resolution charts for LF lens opposed to lenses intended for use on a 6X9 view camera or many of the MF lenses, it would seem that the resolving power of LF lenses is appropriately designed for the 4X5 image size. With the roll f ilm back, can I still expect to get respectable sharpness, say a good 16X20 enla rgement as a reference point, or an image quality comparable to a decent MF 6X7 camera. Or is the 6x7 image too much of a compramise for typical LF lens?
A little more basic would be how to determine the image size on the ground glass . I have unmarked ground glass. I've thought of using a sharpy pen to outline the 6X7 image on the glass. Are there better ways without buying new ground gla ss?
Thanks for the help.
Reviewing resolution charts for LF lens opposed to lenses intended for use on a 6X9 view camera or many of the MF lenses, it would seem that the resolving power of LF lenses is appropriately designed for the 4X5 image size. With the roll f ilm back, can I still expect to get respectable sharpness, say a good 16X20 enla rgement as a reference point, or an image quality comparable to a decent MF 6X7 camera. Or is the 6x7 image too much of a compramise for typical LF lens?
A little more basic would be how to determine the image size on the ground glass . I have unmarked ground glass. I've thought of using a sharpy pen to outline the 6X7 image on the glass. Are there better ways without buying new ground gla ss?
Thanks for the help.