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Old 23-07-2012, 07:50 PM
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Shiraz (Ray)
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Join Date: Apr 2010
Location: ardrossan south australia
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Quote:
Originally Posted by silv View Post
*apparently, it is possible to get to the focal point by holding the lens less camera on top of the focuser (with the eyepiece adapter removed) and sliding the focuser barrel upwards
yes, but it will only come to focus if the focal point is within the adjustment range of the focuser
*for some reason or other, this is better tested while aiming for a distant object a few km away
the scope is designed to image objects in space - it needs to be tested on things that are a long way away or you need to calculate compensating focal distances
* the T thingies don't have an optical effect (well, none that has to do with the focal point, anyway)
they do add a bit to the back focus distance though
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