DayStar Imaging 2-inch Focal Reducer with 20 mm T-extension Tube

The DayStar Imaging 2-inch Focal Reducer connects directly to your reducer to cut the focal length in half (0.5x), or add the extension tube for a 0.33x reduction.

Please note that the etalon clear aperture usually limits the obtainable field of view; Quantum filters will result in a larger usable field than Quark or Ion.

Allows full disk imaging with SR127 and two-third-inch monochrome CCDs such as ICX625, ICX655, IMX250, IMX264.

DayStar Imaging Focal Reducer Specifications

• Four elements in two groups.
• 36 mm clear aperture.
• Front: Male 2-inch eyepiece drawtube.
• Rear: Male T-thread (M42x0.75)
• Flange to flange distance: 5 mm.
• Overall length: 38 mm.

DayStar Imaging Extension Tube Specifications

• Front: Female T-thread (M42x0.75).
• Rear: Male T-thread (M42x0.75).
• Flange distance: 20 mm.
• Overall length: 25 mm.
• Knife edge baffles for superior contrast.

• Improve Your Imaging by Reducing Your Focal Length to Produce Wider Fields of View!
• 0.5x Focal Reducer.
• 0.33x
• Four-Element Lens Design.