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View Full Version : Lens bore hole size for 305mm Ilex/Caltar?



focalplane
5-Nov-2010, 09:46
Anybody know the hole size I need to drill in the lens board to mount a Caltar 305mm in a #4 Ilex shutter? Thanks

dentkimterry
5-Nov-2010, 10:58
2.6 inches
http://www.skgrimes.com/ilex/index.htm

Terry

focalplane
5-Nov-2010, 13:23
Thanks Terry-!!