Sky-Watcher 0.77x Reducer/Flattener for Esprit 150ED Triplet – M48 Thread

Optically matched for the Sky-Watcher Esprit-150 ED Triplet refractor telescope. Provides a fully illuminated and corrected 36mm image circle suitable for sensor formats up to APS-C. This three-element focal reducer/flattener has a reduction factor of 0.77x. for imaging at f5.4. 55mm back focus for use with M48 Canon EOS or Nikon adaptor rings. Includes a standard adaptor with M48 thread. Removing the adaptor reveals an M71x1 internal thread with a maximum of 75mm back focus for self-made adaptor solutions.

Features & Specification

• Three-element design
• Fully Multi-Coated optics
• 36mm Imaging Circle
• 2-Inch filter compatible
• 75mm back-focus or 55mm with the supplied adapt3r
• M42x0.75 adapter (T2)
• Green anodized aluminum screw-on end caps
• Net weight 910g (with end caps)

• Provides a fully illuminated and corrected 36mm image circle suitable for sensor formats up to APS-C
• This three-element focal reducer/flattener has a reduction factor of 0.77x. for imaging at f5.4
• 55mm back focus for use with M48 Canon EOS or Nikon adaptor rings
• Removing the adapter reveals an M71x1 internal thread with a maximum 75mm back focus for self-made adaptor solutions

• Sky Watcher 0.77x Reducer/Flattener
• M48 standard adapter