Can someone help me to do the math on the following:
When I use a 47mm lens and extend the film format (49,1x36,8mm) by movements to the max of 89,1mm x 66,8mm (cropped to 3x4 image format)... what is the resulting equivalent "focal length", i.e. the "lens factor"?
Thanks in advance!
When I use a 47mm lens and extend the film format (49,1x36,8mm) by movements to the max of 89,1mm x 66,8mm (cropped to 3x4 image format)... what is the resulting equivalent "focal length", i.e. the "lens factor"?
Thanks in advance!