Thanks Michael
Yes your 550D is exactly 1:1 pixel res , my 600D gets close to 1:1 pixel res by using 5 x zoom in live view , BYEOS
I’m using Televue powermates to get my focal ratio to f20 on ordinary seeing conditions and up to f30 on good seeing nights
We must have more crap in our Sydney atmosphere than Melbourne as I couldn’t even get a clean view of Jupiter the other night it was a yuck tan colour , also the Jetstream was running around 100kt as well which doesn’t help , planet was jumping around quite a bit
Thanks for the info
Appreciate it
Keep those planetary images coming in
Clear Skies
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