Hi Andy,

I have owned a few mirrors and have never been happy with the quality of the images, this includes a Minolta AF model and the highly touted Vivitar Series 1 solid cat, I was never able to get the definition with them.

They are good in the sense they are very light weight, remember no aperture adjustments so you have to use ND filters to vary light, the one big thing I hated about mirrors is donut shaped highlights in the background when shooting with blurred highligts behind the main subject.