MTO 1000mm to a +/- 800mm Autofocus
I have posted a story about the modification af a MTO 1000mm 10,0 that was adjusted to a 920mm f7,4
The focal lengt that was claimed was not right, the starting point was a 150-500mm zoom lens that seem to be around 460mm instead of 500.
I had scaled the images and came to a focal length of 920mm.
This value was not correct, it has to be somewhere around 800mm
f7,4 seems to be correct, because my Nikon D7000 works.
In the stadium that i am in now the focus motor stops when the dot indicates that the lens is in focus.
The next step is to make this lens accualy Autofocus.
See my design of making this happen.
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