Thanks Stu-great images there!
Not sure if mine will work out the same,will have the DSLR of back of 4 inch refractor.
I just ordered a 20 cm by 30 cm,for astro shop,so will have enough for a 4 and 3 inch refractor,and even if I make a set of filters for 80 mm binos,will still have an amount left over,which I will have no use for.
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