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Old 07-09-2009, 09:11 PM
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Merlin66 (Ken)
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Join Date: Oct 2005
Location: Junortoun Vic
Posts: 8,927
Great new Spectroscope!!!!!!!!!!!!

Oooooh man, you make it look so simple!!!
The layout ( what's the angle beteen the lenses?) looks ok.
You may want to use a laser to collimate/ align between the slit and the camera. The height of the optical axis should give some clearance on the body of the 135mm lens ( not much but just enough to allow the focus ring to rotate)
Machine up an adaptor for the camera(s) ( you can use the correct camera body "insert" to match the 135mm lens by breaking apart a x2 std camera adaptor for the camera) and make a 1.25" female port. This will allow you to use Webcams, DMK, QHY5 and almost any other camera that you can fit a nosepiece to. Remeber the back focus requirements vary!!!!!( I have spacers on mine)
I found you sometimes had to "tweek" the camera lens focus to get everything focused....depends on the camera body etc.
Certainly looking good!!
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