Has anyone -- other than me -- used a Spiratone Circo-Mirrotach, or similar mirror device (I think Beseler made one) to project an image on a wall with enlargers that don't flip? I'm sure this has been discussed before. It's worked for me. Any pros and cons from users?

The Spiratone Circo-Mirrotach that I use is a front surface mirror with a series 7 thread, so it was easy to adapt to MOST of my lenses.

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