In very good condition with original box. Scratch marks around outside where it sits in the visual back which are inevitable.
Optimised for Sky-Watcher superfast f/4 Quattro imaging Newtonians, delivering stunning wide-field views with pinpoint stars to the edge of the flat field.
Magnification remains unaltered.
Features a 4 x element design with one element made from FPL51 ED glass.
Requires 55mm back focus. Image height 28mm. Outside diameter 50.8mm.
Accepts 48mm T-ring adaptors.
https://skywatcheraustralia.com.au/p...oma-corrector/
$300 pickup in Melbourne + $20 postage elsewhere in Australia