[Konvas] Mirror lenses...

[Adam Frey]

Let's talk about mirror lenses. I've never owned one; well at least for 
any of my cameras. But I do own a telescope that uses a mirror lens. 
That said, I see them on Amazon and ebay quite often. Usually 500mm and 
up. Given, they don't seem like they are able to adjust the f-stop, but 
most of them are at least f6.3 to f8 like this one:
http://www.amazon.com/s/ref=nb_ss?url=search-alias%3Dphoto&field-keywords=mirror+lens

Now, in my telescope, it flips the image 180 degrees. In other 
telescopes I've used, it flips the image something like 270 degrees or 
something (can't remember exactly).

So, my question is:
1) Anyone used them for Motion Picture work?
2) is the image warped in any way?
3) is the image flipped?
4) is getting a mirror lens worth it, or are they cheaply constructed?
5) did the LOMO factory build any mirror lenses?

With the last one, I don't remember seeing any LOMO mirror lenses, but 
has anyone else seen one?


Cheers,

Adam Frey
Director/Cinematographer
Crimson Chain Productions
http://crimsonchainproductions.com
Cell: 301-639-7146

Crimson Chain Productions
PO Box 35
Libertytown, MD 21762