Thanks, CH. I note that the primary mirror diameter for a 350/5.6 is
62.5mm. I also note that the primary diameter for a 500/8 is also
62.5mm. Same mirror blank, different curve ground in.
My guess is that it would be very difficult to make a 350/8.
Chuck Norcutt
C.H.Ling wrote:
> Tamron has a 350/5.6 and there is also a Russia 350/4.5 which seems pretty
> good in resolution, I have tried it once on my E-1.
>
> C.H.Ling
>
> ----- Original Message -----
> From: "Chuck Norcutt" <chucknorcutt@xxxxxxxxxxxxxxxx>
>
>> Mirror lenses of less than 500mm focal length are quite rare as are
>> apertures larger than f/8. I think someone made a 350mm mirror lens
>> long ago but I can't remember who it was.
>>
>
>
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