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How do you adapt large projection lenses?
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PostPosted: Mon May 13, 2019 1:34 am    Post subject: How do you adapt large projection lenses? Reply with quote

Over several years, I've seen some of your adaptation wonders that apply to various projection lenses. I use myself several ones with no problems on ready-made adapters, the smaller ones on a custom 49mm helocoid, bigger standard lenses on a dedicated 62.5mm one.

Recently I've got a projection lens of 70mm in diameter and feel myself a bit annoyed. To spend for a dedicated helicoid and command one to a lathe craftsman seems exaggerated. To find a cheap mirror lens to disembowel it requires long fishing.

What are your methods to adapt large and rather heavy projection lenses, larger than 62.5 mm? Your know-hows of not very expensive adaptation will be, as always, appreciated.