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Hi Graham,
You already have DSLR camera gear?
You can use the SA100 as an "objective grating" by drilling a 32mm hole in the centre of a spare lens cap and inserting the SA100 into that, then put the cap onto a 135mm lens. You will get lovely results, be able to take fantastic multi-spectra images AND no need to buy a scope etc.
Piggybacking a DSLR then means you can track, remove the SA100 lens cap and use the lens for widefield etc etc.
As for your question, no, spikes won't make a difference to your spectra.
Last edited by StuTodd; 06-11-2019 at 02:39 PM.
Reason: Spellinz
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