Curious...

[Andrew*]

Can someone tell me the use of a scope where the eyepiece barrel is larger than the aperture?!

I don't mean that literally, by the way - just why so small! I mean no offence to the buyer - I'm simply curious. There was me thinking 66mm was the smallest out there...

cheers

Andrew

[GazOC]

I've seen them used as a rich mans finder scope.

[steppenwolf]

As this lens is an APO it would make an excellent wide field imaging lens for astro-photography. A camera lens of this focal length would have a lot of 'normal' glass in it and although it would give the same wide field view, the chromatic aberrations it induced would spoil the image, unlike an APO lens.