Tele Vue TRF-2008 Flattener / reducer 0,8x for refractors

Tele Vue TRF-2008 Flattener / 0.8x Focal Length Reducer for Refractor Telescopes

The Tele Vue TRF-2008 is an exceptional accessory designed to enhance the performance of your telescope by combining the functionalities of a professional flattener and a 0.8x focal length reducer. While it is primarily tailored for Tele Vue TV-76 and TV-85 refractors, its versatile design makes it compatible with other telescopes featuring a focal length ranging from 400 to 600 mm.

This device maintains a standard back focus distance of 55mm, a common feature in most digital SLR cameras, ensuring broad compatibility and ease of use with various photography equipment.

Easy Connection

The TRF-2008 attaches effortlessly to telescopes equipped with a 2-inch focuser. Your camera or imaging device can be securely mounted using the standard T2 thread, providing a stable and reliable connection for your astrophotography needs.

Key Features of the Tele Vue TRF-2008 Flattener:

• Three-Element Flattener: Features a high-quality three-element optical system that effectively corrects distortions and field curvature, delivering crisp and flat images across the entire field of view.
• Full Anti-Reflective Coating: The optical system is coated with a full multi-layer coating (FMC) to minimize internal reflections and maximize light transmission, ensuring excellent image contrast and clarity.

Technical Specifications:

• Focal Length Reduction: 0.8x
• Optical System: Three-element design
• Coating: Full multi-layer coating (FMC)
• Compatibility: Tele Vue TV-85, Tele Vue TV-76, refractors with focal length 400 - 600 mm
• Focuser Diameter: 2 inches
• Device Connection: T2 thread
• Back Focus: 55 mm (56 ± 2 mm)

Package Contents:

• Tele Vue TRF-2008 flattener

Expert Advice:

It is crucial to note that the TRF-2008 maintains a constant back focus value, which is the distance from the lens to the primary focus, such as the camera's image sensor. Unlike focal length reducers and Barlow lenses, which allow for adjustments, flatteners or field correctors do not.

Achieving optimal image sharpness with the TRF-2008 requires precise determination of the correct focal length, often with a precision of 0.1 mm. Ensuring this precision is key to capturing sharp and distortion-free images with this accessory.

The Tele Vue TRF-2008 flattener opens up new possibilities for astrophotography enthusiasts and professionals alike. Its impeccable design, advanced optical system, and precise focal length reduction make it a valuable addition to any telescope setup, delivering stunning and accurate images of the night sky.