I want to buy a 300mm lens for my Toyo 45AX and found that only Nikkor T series lenses (270mm or 360mm) are in Copal 1 and other 300mm Rodenstock or Schneider l enses are all in Copal 3. However, the Nikkor lenses are f8 lens and I worry abo ut the focusing issue. I don't know the 45AX will be strong enough to hold the l ens in copal 3. I guess that it will be difficult to do the tilt movement for th e lens board will be easily fall down if it has not been locked very tightly. I don't know this statement is correct for I never use a lens in Copal 3. I do ap preciate for any uggestions especially from Toyo 45 A,AII or AX users. Thanks!
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