[Mavspace (Paul)]

Regrettably for Sale is my William Optics Redcat 51 Petzval APO. (V.1)

In fantastic condition, the optics are clean and it comes with a few extra's that make life that little bit easier when shooting astrophotography.

- Blackcat mount
- Redcat saddle bar

Asking $950 + Postage or pick up Vic

Optical design Apochromatic petzval (4 elements in 3 groups)
Objective diameter 51 mm
Focal length 250 mm
Focal ratio f/4.9
Image circle 44 mm
Material Anodized aluminium alloy
Mount attachment 210 mm Dual Vixen-style / Arca-Swiss dovetail bar
Focuser Indexed manual helical focuser
Camera connection M56 x 0.75, M48 x 0.75, optional T-Mounts
Backfocus 59.7 mm from M48 thread
Tube weight 1.8 kg
Tube length 225 mm (fully retracted), 305 mm (fully extended)
Tube diameter 80 mm


Any question please do not hesitate to ask.