Daystar Filters Imaging Focal Reducer, 0.5x/0.33X, 2" to T, with 20mm T Extension Tube

• Enhanced Field of View: Specifically designed to expand the field of view in astrophotography, enabling wider and more comprehensive imaging.
• Focal Reduction Options: Offers a 0.5X reduction when directly connected to a T-mount camera, and a 0.33X reduction with the included 20mm T extension tube.
• Interference Elimination: Achieve a 0.38X effect free of interference by pairing with the T-thread Interference Eliminator (available separately).
• Mounting Flexibility: Comes with a 2" to T mount, ensuring compatibility with a wide range of telescopes and cameras.
• Field of View Limitations: The obtainable field of view depends on the etalon clear aperture; Quantum filters provide a larger field than Quark or Ion.
• Full Disk Imaging Capability: Enables full disk imaging when used with SR127 telescopes and 2/3" monochrome CCDs, including models like ICX625, ICX655, IMX250, IMX264.
• Ideal for Advanced Astrophotography: Perfect for astronomers and photography enthusiasts looking to capture expansive celestial scenes with greater detail.
• User-Friendly Design: Easy to attach and configure, enhancing the user experience for both amateur and professional astrophotographers.

Specifications

Focal reducer specifications:

Four elements in two groups.

36mm clear aperture.

Front: Male 2" eyepiece drawtube.

Rear: Male T thread (M42x0.75)

Flange to flange distance: 5mm.

Overall length: 38mm.

Extension tube specifications:

Front: Female T-thread (M42x0.75)

Rear: Male T-thread (M42x0.75)

Flange distance: 20mm

Overall length: 25mm

Knife edge baffles for superior contrast.