William Optics SpaceCat 51
The SpaceCat 51 is a premium apochromatic refractor designed for wide-field astrophotography. With its Petzval optical design, it delivers a flat field without the need for an additional flattener, making it a favorite for capturing expansive nebulae and star clusters.
Technical Specifications
Optical Design
Petzval Refractor
Aperture
51 mm
Focal Length
250 mm
Focal Ratio
f/4.9
Weight
1.8 kg
Role
Wide-field Imaging
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