M57 made in YL with 6F4 newtonian yesterday

[LT]

Attempt to see the coma correction of TV paracorr on a 6" F4 Newtonian. Seemed the back focus being not so matched with the original design.

L=5x30s, taken with 6" F4 + TV Paracorr + 1600 cooled cmos camera @690mm F4.6

Almost full frame image

M57_5x30s_L_Jpeg.jpg (511.6 KiB) 已瀏覽 294 次

and cropped image

M57_crop_5x30s_L_Jpeg.jpg (247.01 KiB) 已瀏覽 294 次

[Eddy So]