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Old 22-02-2008, 03:47 PM
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Bucky1379 is offline
Join Date: Jan 2007
Location: Melbourne, Australia
Posts: 27
'Scope magnification with a webcam


I have a Philips 900CN with a 1.25" adaptor (which I haven't been able to use yet) having removed the lens as per instructions. I have a question though.

I know that I calculate magnification for my scope using the Primary focal length divided by the eyepiece focal length (eg 1200 / 9 = 133.3333) but how do I calculate it with a no eyepiece and a lensless CCD chip at the focal point.

I have searched the internet a found 1 reference saying the result is about equivalent to a 4mm eyepiece but is this true and how is it calculated?

Thanks for any help understanding this.

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