William Optics RedCat 61 WIFD APO 300mm f/4.9

Description

William Optics RedCat 61 Astrograph is a great refractor for astrophotographers, and this version of the RedCat comes with the William Optics Internal Focus Design (WIFD)! The RedCat WIFD 61 provides color-free apochromatic performance. William Optics has designed the RedCat 61 WIFD refractor to deliver excellent full frame image quality to those looking for an aesthetically pleasing and high performance refractor.

William Optics Internal Focus Design (WIFD)
This new focuser design includes the patented William Optics center focuser with precise internal sliding of fixed optics to prevent image shift. The integrated position viewing window on the focuser provides instant verification of the graduated numerical display. The smooth rack-and-pinion design is incorporated into the focuser to provide super-fine adjustability for critical focus. The internal movement of the optical elements is protected from the elements and cannot come out of alignment. The redistribution of weight allows for better balance during imaging sessions.

What’s in the box

• M48 Dust Cap/Thread
• Tilt Adapter
• Camera Angle Rotator
• Rotator Tension Knob
• Saddle Handlebar (with two M4 thumb screws)
• Helical Focuser with 2GT Gear Ring
• Arca Swiss/Vixen Plate
• Mounting Rings
• Dew Shield with Focus Tension Ring
• Super Bright Bahtinov Mask
• ​Soft Carry Bag

William Optics RedCat 61 WIFD APO 300mm f/4.9 Specifications