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Some tries with 807 IR Pass Filter Gassendi and Clavius
Posted: Tue Aug 10, 2021 8:29 am
by filippo.ciferri
Hi to all,
even if I know that 807nm is too much as I start to loose resolution on my C11, I would be curiuos to made some tries, here a couple of results on Gassendi and Clavius, C11 with Powermate 2x, ASI 290MM Astronomik ProPlanet 807, SharpCap Pro, 5000 frames@60 fps.
Comments and suggestions are welcome.
Filippo.
Re: Some tries with 807 IR Pass Filter Gassendi and Clavius
Posted: Tue Aug 10, 2021 11:49 am
by timh
Hi Filippo
Really interesting and a great image of Clavius especially. Not really thought about the advantages and disadvantages of going up into the near IR before. I suppose it is a balance between the benefit of reducing the effect of air turbulence versus the disadvantage of reduced theoretical maximum resolution at longer wavelengths? The benefit appears to have won out. Your post led me to search and find
http://www.ianmorison.com/imaging-the-m ... -infrared/
Tim
Re: Some tries with 807 IR Pass Filter Gassendi and Clavius
Posted: Wed Aug 11, 2021 9:52 am
by filippo.ciferri
Hi Tim,
yes you are right, it's a kind of balance between seeing and resolution, even if I read many times that under 40 cm diameter is better to stay in the 600-700nm range. Anyway, thanks for the comments, here I attached anopther couple of tries on Plato and Aristarchus, same configuration.
I had received a 742nm filter I will do other tries to see if there are some deltas, since moon is quite low on this period I will try to use an ADC to experiment another variable in the image train.
I will post the results.
Filippo.