Shen45
3-Jun-2007, 02:12
I have an alphax #4 with 241mm Raptar f4.5 elements and 305 mm f6.3 raptar elements that all fit the #4
The aperture scale is marked --
4.5, 5.6, 8, 11, 16, 22, 32
this is for the 241mm.
If I put the 305mm elements in the shutter the maximum aperture is f6.3 falling at the f4.5 mark on the lens aperture scale. So ---
What are the aperture settings for the 305mm? If 4.5 is the 6.3 setting what would 5.6 and the others equal.
Thanks for your help
The aperture scale is marked --
4.5, 5.6, 8, 11, 16, 22, 32
this is for the 241mm.
If I put the 305mm elements in the shutter the maximum aperture is f6.3 falling at the f4.5 mark on the lens aperture scale. So ---
What are the aperture settings for the 305mm? If 4.5 is the 6.3 setting what would 5.6 and the others equal.
Thanks for your help