OK so I have an aging Mamiya 7 with an 80mm lens gathering dust in my cabinet. Right below it I have a Canon WD-58 0.7 x 58 wide-converter leftover from my dead video camera. Today I find out both have a filter diameter of 58mm so the Canon 0.7 wide-converter fits perfectly on the Mamiya 80mm lens.
Before I did not have a wide angle lens for the Mamiya 7. Now I do
The only problem is that since the Mamiya 7 is a rangefinder I have no idea how wide the field of view is when the 0.7 Canon converter is mounted on the Mamiya 80mm lens. This is not a serious problem as I figure it will give a surprise bonus every time I develop whatever I shoot this way ie I can be sure whatever I see in the yellow frame of the rangefinder will be in the photo but will not know for sure what else I get at the edges of the frame until I see the negative - a bit like shooting blindfolded.
But being a calculating geek, before I shoot a test roll I am now trying to calculate about how wide the resulting field of view (fov?) will be when the 0.7 wide converter is mounted on the 80mm lens.
Two questions:
Could it be something like: 80mm lens x 0.70 converter = 56mm fov?
Would 56mm fov on the Mamiya 7 (6x7 format) be roughly equivalent to (about 2x) 28mm on a 35mm DSLR?
If this is the case maybe I can count on whatever ends up in the rangefinder will be in view (not just whatever is in the yellow reference frame inside the rangefinder) :loco:
Before I did not have a wide angle lens for the Mamiya 7. Now I do
The only problem is that since the Mamiya 7 is a rangefinder I have no idea how wide the field of view is when the 0.7 Canon converter is mounted on the Mamiya 80mm lens. This is not a serious problem as I figure it will give a surprise bonus every time I develop whatever I shoot this way ie I can be sure whatever I see in the yellow frame of the rangefinder will be in the photo but will not know for sure what else I get at the edges of the frame until I see the negative - a bit like shooting blindfolded.
But being a calculating geek, before I shoot a test roll I am now trying to calculate about how wide the resulting field of view (fov?) will be when the 0.7 wide converter is mounted on the 80mm lens.
Two questions:
Could it be something like: 80mm lens x 0.70 converter = 56mm fov?
Would 56mm fov on the Mamiya 7 (6x7 format) be roughly equivalent to (about 2x) 28mm on a 35mm DSLR?
If this is the case maybe I can count on whatever ends up in the rangefinder will be in view (not just whatever is in the yellow reference frame inside the rangefinder) :loco: