another andromeda

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another andromeda

Postby alacant » Sun Nov 27, 2016 12:17 pm

Achromatic refractors have come a long way since the blue fringe of death and these days are great for AP, especially with ST's deconvolution tricks. Here's what a €150 f5 can do these days:
http://linuxcostablanca.blogspot.com.es/2016/11/andromeda-iv.html
Thanks for looking and clear skies,
Steve
alacant
 
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Re: another andromeda

Postby Guy » Sun Nov 27, 2016 7:03 pm

That looks great - particularly for an achromat.

Did you use any special processing in StarTools to reduce the chromatic abberation? Like fringe killer filter add blue back to central star perhaps?

Guy
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Re: another andromeda

Postby alacant » Mon Dec 05, 2016 4:47 pm

Hi. Thanks for looking. In this case, I didn't use any st special techniques. It's just nice to know that up to date refractors use just as good lenses as what 10 or so years a go would cost you a fortune. Cheers and clear skies, Steve.
alacant
 
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