diegobuono

The 500 C/M came out in the 1970, early model was still marked C even if it was a C/M. C/M differred from C in the user interchangeable focus screen.

In a backlight situation or if the light is direct toward the lens the lens hood is useless regardless of how it is deep.

The full resolution of a Flextight X5 is not 3200 dpi; it is dependant from the film format, on a 35mm in portrait orientation it is 8000 dpi. Even the supposed max scan capability for 6 x 6 film it is not just 3200 but it is more if you create a custom film holder (only virtual, in fact you can still use the standard holder but sisenable auto recogniction of the film holder). On my flextight i have custom (as already said, just virtual) holder with an aperture of 56 x 56 mm and it allows me to scan at 3600 dpi. I could get even more if I create a 55 x 55 mm but I prefer to scan the black border too so I limit myself to 56 x 56 mm. Try to ask the lab to give you the .fff format file so you have the full control on your file exactly as you scan yourself (see on the hasselblad website the advantage of a .fff file), then download the FlexColor software from the Hasselblad web site.