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Old 31-03-2013, 06:57 PM
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skysurfer
Dark sky rules !

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Join Date: Dec 2011
Location: 33S 150E (AU holiday)
Posts: 1,181
Quote:
Originally Posted by anj026 View Post
The trouble with a scope is that even if the scope is tiny and compact, the mount rarely is. The porta mount can be squeezed under the car seat once the head is removed from the tripod.
A tabletop altaz tripod can be an option. Of course, you need a table but it is better than nothing.
I have an 80mm f/6.3 short achro which weighs only 1.7kg (OTA only) but can even be used handheld with the 24mm Panoptic in it (21x) when nothing available to put the tabletop tripod on. Then it is just a monocular but with superb image sharp to the edges and large FOV (app. 68º, actual 3.3º) due to the eyepiece.

When some has a bright telephoto lens (e.g. Canon 70-200 2.8L) there is a simple way to make a shorttube APO refractor of it. Barlow and diagonal needed. Barlow is required for two reasons: 1. otherwise too short back focus, 2. f/2.8 cannot be handled by eyepieces without many image errors.
This makes a nice 70mm f/5.6 portable APO.
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