Even better if that's possible - the air spaces involved are far
shorter and lower in volume so less atmospheric haze and fewer aerosol
pollutants are involved.
AndrewF
Blessed are the cracked - for they let in the light. (Spike Milligan)
http://www.pbase.com/afildes
On 11/04/2005, at 2:21 PM, Mike wrote:
> Andrew, You describe your 65-116 auto extension tube as "optically
> perfect".
> I was wondering if the "optics' on the 7mm auto tube are also perfect?
>
> Mike :>)
>
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