Quote:
Originally Posted by raymo
Hi Prashaant,
The black diamond range of refractors are basic achromats which will show
colours around the edge of bright objects, due to all colours not coming to focus at the same point because of their differing wavelengths.
Evostar models have better colour correction and will show minimal false
colour. Although they too are doublets, they are usually known as
apochromats like the triplet lens models.
raymo
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I guess this shouldn't matter if you are imaging with a mono camera as you are using separate filters for each color?