Seeing condition was pretty good (Alpo seeing 6/10) when I took this picture with my 7″ Orion Maksutov Cassegrain.
I spent 30min collimating the telescope before shooting Jupiter. I used a quality eyepiece at x350 to get pretty symmetric diffraction rings on a 2nd magnitude star. It was I think time well spent.
This is the first time I collimated this telescope since I bought it – the scope keeps collimation pretty well – but still it was time to tweak it.
And it paid off – seeing was pretty good and with better collimation the telescope really showed its potential.
I am still very surprised by what this small telescope is capable of !
– Registax v5
– Photoshop CS4
– Astra Image wavelet plug in