[Robert_T]

Hi All, during last nights Mars imaging run I decided to do a comparison between images from two avis taken back to back. Identical settings and processing with the only difference being the use of 2.5x powermate giving around F30 on the F12 Mewlon for one avi and a low quality 3x barlow plus ~50cm ext tube giving around F45-50 for the second avi on the same instrument. The idea was to resample up (1.5x Mitchell in Reg3) the 2.5x powermate shot to match the F45 image scale shot (without resampling) and compare relative detail between them.

Check the difference in detail between the resampled shot at left and the higher image amplified shot at right !!! Probably not news to many of you, but looks like image amplification at the scope beats resampling hands down - even if using lower quality barlow/tubes to get the scale.

Thoughts, comments welcome.