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| p.10 #5 · lens repair, modification and disassembly guide thread |
Dear fellow modders,
I'd like a Konica AR to Fujifilm X speed booster. Since it does not yet exist, I thought I should try to make one.
I currently own neither a speed booster nor a conventional AR-adapter and even no Hexanon lens.
Before buying those items I wanted to ask for some data and opinions so that I don't purchase the wrong things.
I can think of two general options to approach this:
First approach: Use a longer speed booster (e.g. Minolta MC/MD), shortening it at the front and attach a Hexanon mount from an old donor camera at the shortened end. Not sure, however, if the glass elements from the speed booster are supporting that mod.
Second approach: Use a conventional AR-FX adapter, buy any speed booster and remove the lens group, in order to place it within the conventional adapter. However, I doubt that the length would be correct. On top of that, the glass elements from the speed booster could be suboptimal.
These are the factors which make me uncertain, perhaps one of you knows better:
A) Is the speed booster's lens group always the same (dimensions, optical formula) for one camera mont, notwithstanding the lens mount type (MC/MD, FD, CY,...)?
B) Is the speed booster lens group at the same distance, relative to the Fuji sensor, for any of these lens types?
C) What are the thicknesses of the speed booster, flange-to-flange, for the different mount types? I understand that the speed booster is thinner than a conventional adapter. I am interested in Fuji X camera mount adapters but please feel free to provide measurements of NEX adapters, too, if you could.