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Re: [ATM] Shorten drawtube
The truth of the matter is that the drawtube poking into a moderate sized
mirror like that won't hurt anything. The length is too short to provide
any real diffreaction spikes in the image with a bright star and also won't
hardly affect the actual amount of light actually being blocked. Also, the
worst condition for obstruction will be with very short FL EPs which don't
have that big of a FOV so that the light obstructed will be even less than
it would be with a longer FL EP would have. It may seem like the tube is in
the path but the small FOV will mean that the tube of the focuser really
won't be but will be very close to obstructing the FOV.
Bob May
http://nav.to/bobmay
bobmay@nethere.com
NEW! http://bobmay.astronomy.net
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