I'm photographing the Transit of Venus through my Celestron C8 with an objective Baader solar filter. I've attached the 5100 with a Nikon mount adaptor and a T piece at the prime focus of the scope. Without a "smart" lens in place I get the "no lens" message (in this arrangement the telescope takes the place of the lens).. I can guess at a shutter speed and set it on manual but I'll be tracking for hours using the intervalometer to snap every 30 seconds through a changing sky so aperture priority would be way better. Is there a setting to ignore the no lens issue and automatically set shutter speed for the light hitting the sensor no matter what lens is attached?
How to use 5100 when screen says "no lens", is there a setting?(3 posts) (3 voices)
I have no idea, but, the folks at Celestron may have come across this issue before and may have an answer for you.
There is no way to enable the shutter in any mode other than manual with non-CPU lenses on entry level cameras.
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