Thread: Stacking Barlows (or eyepiece projection)
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Old 24-02-2016, 02:03 AM
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luka
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Stacking Barlows (or eyepiece projection)
Hi

I have been trying to use ED80 with Philips SPC900NC to do some planetary imaging. I am not expecting great results because of 80mm aperture. Anyway, to get larger magnification I have tried stacking Barlows.

I have 2" Bintel ED 2x Barlow and 1.25" Televue 3x Barlow. I can easily get focus on the webcam with either of the Barlows but not when stacked. Do I need extension tubes or is it just extremely difficult to get an image due to high magnification/low light intensity?

How does the eyepiece projection compare to using (stacked) Barlows in terms of image quality?

Thanks in advance
Luka
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