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For travel setups
resulting in flatter field edges and finer star points
eliminating the need to locate adjustment clamps in low light
The ASI533MC Pro is an excellent first cooled astronomy camera
Dark Clear Skies M54M to M42M Back Focus Spacer – 1.5mm Wide Field Imaging For travel setupsThe Dark Clear Skies M54M to M42M Fine Back Focus Spacer (1. 5 mm) is a precision machined spacer designed for fine adjustment of back focus distance in astrophotography imaging trains. Purpose & Use Many telescope reducers and field flatteners require a precise back focus distance to deliver optimal star shapes and edge correction. Small spacing errors of even 12 mm can noticeably affect image quality, particularly with fast optical systems and
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