On 18 Feb 2005 at 10:09, Bill Gillooly wrote:

> There is the Fisheye 7.5mm f/5.6 (circular) the Fisheye FD 15mm f/2.8
> (full-frame, same optics as the EF version, I think) the FD 14mm
> f/2.8L and the FD 17mm f/4 but you won't be able to adapt any of them
> to the EF bodies and maintain infinity focus.
> 
> The Canon Macrophoto Lens 20mm f/3.5 and it's partner the Canon 
> Macrophoto lens 35mm f/2.8 are for bellows or extension tube use only.
> They have no focusing mounts and are designed for reproduction ratios
> 4:1-10:1 and 2:1-5:1 respectively.  Meaning they won't focus to
> infinity and if they did, the results would be terrible.

I assume both 20mm and 35mm are symmetrical lenses, which would 
require a much deeper position in the camera body to achieve infinity 
focus....deeper than the mirror....:))


--                 
Bye,

Willem-Jan Markerink

      The desire to understand 
is sometimes far less intelligent than
     the inability to understand

<[EMAIL PROTECTED]>
[note: 'a-one' & 'en-el'!]

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