|
I have the Mitsuboshi knife edge focuser. Its tremendous!!!! The invention
of a circular knife edge that clamps on securely and is aluminized on glass
takes the hardness out of knife edge focusing. Its easy to use. Before
having it, knife edge focusing was pure hell.
You can calibrate it for any camera with a depth gauge. I bought a cheap depth gauge at a chinese tool store and calibrated mine to a fraction of a thousands of an inch. This is a wonderful device. Its the best money I ever spent in the astrophotography hobby. sincerely glenn shaw Jim Ives wrote: Mike I just used one for the first time on my Takahashi E160 It's an f/3.3 and it nailed the focus perfectly! That's pretty hard to achieve at f/3.3!Jim Ives |