Colorful stars

Started 2 months ago | Discussions thread
OP hha Contributing Member • Posts: 724
Re: Colorful stars

swimswithtrout wrote:

That's some pretty nasty CA there......All of those colors are simply due to a bad lens.

Yes, this 50 year old lens Nikkor 200mm Q f/4 lens, used at f/4. It has only four elements, and was corrected for only two colors, i.e. achromat.

The challenge I proposed to the readers is to take a picture of this area, with Vega at the center, with their own prime lenses in the 180-300 mm range, with enough exposure and stretching to make V=+15 stars visible, and see how much or how little color they are getting with more modern lenses.  Are any of them apochromats?

Try it, and enjoy the colorful stars.

Cheers,

 hha's gear list:hha's gear list
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