Moon shots - Sel55-210+VCL-DH1758, -Bower500mm/1758, -Bower1000mm/1758

Posted a moon shot earlier using sel55-210+Canon TL55 3x, the outcome is not so good. http://forums.dpreview.com/forums/read.asp?forum=1042&message=41666154

Finally the sky is clear again, so I took more shots to compare the outcomes. I am the beginner so the pictures may not be taken peoperly.

SEL55-210 + DH1758 (1.7x)

Bower500mm + DH1758

Bower500mm + Bower 2x + DH1758

Bower500mm + Bower 2x + Canon TL55 3x