Why can I not get high magnification photos through my 8 inch Dobsonian?
I have an 8 inch Dobsonian and I'm taking shots of Saturn through my 35 mm film SLR camera with adapter.
The highest mag I can use with the camera is using a 25 mm with a 2 X magnifier (that extends the light path), giving the equivalent of looking through a 12.5 mm.
This gives about 100 power which is still small photographically.
I'd like to use higher powers to highlight Saturn's rings but I don't have enough focuser travel in the inwards direction. Using higher power eyepieces even with the 2 X magnifier, I can't get into focus cause the focuser doesn't go down far enough.
Is the solution a more low profile focuser? Yet the focuser on it now seems pretty low profile. Is there a solution?
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