Space grey colour discontinued.

RedCat 51 is available~ Click here to order it now!

Highlights of the SpaceCat 51 APO

• 4 elements Petzval flat field design with FPL-53 optics
• Fast focal ratio f/4.9
• Full frame coverage
• Interchangeable camera mount (Canon / Nikon / Sony / Pentax / M4/3 / Fujifilm)
• Compatible with any 48mm (2") imaging filter
• Super bright Bahtinov mask + lens cap
• Field rotator 
• 1.4kg only including mounting base

Exclusive features of the SpaceCat 51 APO:

• Limited edition space grey colour scheme
• Extended length dual spec mounting base (Arca/Vixen)
• Focal plane adjustment ring (O-ring)
• SpaceCat special edition carrying bag

Optional: SpaceCat Handle Bar (US$45)

Supports William Optics new unibody guidescope

 Introduction

Backfocus Diagram 

User Photos

The impressive Great Eta Carina Nebula captured with the RedCat 51 APO by professional astronomer Dr. Wei-Hao Wang 

Detailed bird photography is capable to be done with SpaceCat 51 APO.