In article <4fjf97$dt3@nntpb.cb.att.com>, gang@mtdcr.mt.att.com1239MT says...
>In article ,
>Kim Goldberg wrote:
>>Do mirrored lenses have other drawbacks besides fixed aperature?
>>Will my slides be noticeably less sharp than a standard fixed
>>focal length lens? Does a mirrored lens compress/flatten the
>>image more?

>Mirror lenses also have a shallower depth of field compared to the
>conventional lenses of the same aperture. The usual DOF formula doesn't
>apply to mirror lenses. Therefore, they demand more precise focus.

I D O N' T T H I N K S O . . . . . ! ! !
Actually, the older Nikkor 500mm f8 seems to have greater DOF, due to the high contrast sharp edges of the "doughnuts of confusion" in out
of focus areas. So, what brings you to the conclusion above???
Hope This Helps