Why no mirror telephotos for DSLR Canon?

Started Jan 25, 2010 | Discussions thread
Bill MacBeth Senior Member • Posts: 1,631
Re: I have a $700 1900mm f15

ljfinger wrote:

Get a telescope. A great many are available in all sorts of sizes and shapes and types.

I used to use Canon film bodies on an 8" f/8 Newtonian reflector (200mm x 1600mm FL) using eyepiece projection. I sill have the telescope and need to know -- can a 5DM2 operate without a lens, to use eyepiece projection? I would focus with Live View.

Yes, I know there are dust and humidity risks, but a dry, calm night would minimize those.

Regards, Bill

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