Tele Vue 2" 0.8x Reducer / Field Flattener for 400 - 600mm Focal Length Telescopes

Stock count is accurate & shown in real time.
- This item is out of stock.
- Sign up for back-in-stock alerts to be notified when this item becomes available (account login required).
- This item is out of stock.
- Sign up for back-in-stock alerts to be notified when this item becomes available (account login required).
Contiguous US / Lower 48:
Free shipping applies to orders over $50 using our chosen carrier/method. Faster paid options are available at checkout.
Alaska, Hawaii & US Territories:
Free shipping applies to many—but not all—products. Enter your ZIP code in cart or upon checkout to confirm options and costs.
International:
International orders do not qualify for free shipping. Shipping, duties, brokerage, tariffs, and taxes are the customer’s responsibility. Some items may be restricted due to export, size, or manufacturer limitations.
Tele Vue's model TRF-2008 0.8x Reducer / Flattener converts TV-85 to 480mm f/5.6 and TV-76 to 380mm f/5.0 for flat field, fast photography. While optimized for TeleVue's TV-85 telescope, it is quite effective with all doublet or triplet refractors with a focal length range of 400mm - 600mm.
Fully multi-coated 3-element unit inserts directly into 2" focuser on the telescope side. It accepts standard T-rings (M42x0.75 thread) for DSLR cameras.
Installation is simple. Just thread your camera's T-ring (not included) onto the 0.8x Reducer/Flattener. Then, attach the T-ring to your DSLR camera. Remove the diagonal from your telescope’s focuser and replace it with the flattener/camera assembly. Your telescope’s focal length and f/ratio will now be 0.8 times their normal figures.
"This accessory is a must-have for someone planning to use the TV-85 photographically" - review in Sky & Telescope, July 1999.
Manufacturer part number: TRF-2008
Useful Resources
User Manual: Tele Vue 2" 0.8x Reducer / Field Flattener Manual (PDF format, 3.94 MB)
Other Information
- Country of Manufacture: Japan
Tele Vue's model TRF-2008 0.8x Reducer / Flattener converts TV-85 to 480mm f/5.6 and TV-76 to 380mm f/5.0 for flat field, fast photography. While optimized for TeleVue's TV-85 telescope, it is quite effective with all doublet or triplet refractors with a focal length range of 400mm - 600mm.
Fully multi-coated 3-element unit inserts directly into 2" focuser on the telescope side. It accepts standard T-rings (M42x0.75 thread) for DSLR cameras.
Installation is simple. Just thread your camera's T-ring (not included) onto the 0.8x Reducer/Flattener. Then, attach the T-ring to your DSLR camera. Remove the diagonal from your telescope’s focuser and replace it with the flattener/camera assembly. Your telescope’s focal length and f/ratio will now be 0.8 times their normal figures.
"This accessory is a must-have for someone planning to use the TV-85 photographically" - review in Sky & Telescope, July 1999.
Manufacturer part number: TRF-2008
Tele Vue's model TRF-2008 0.8x Reducer / Flattener converts TV-85 to 480mm f/5.6 and TV-76 to 380mm f/5.0 for flat field, fast photography. While optimized for TeleVue's TV-85 telescope, it is quite effective with all doublet or triplet refractors with a focal length range of 400mm - 600mm.
Fully multi-coated 3-element unit inserts directly into 2" focuser on the telescope side. It accepts standard T-rings (M42x0.75 thread) for DSLR cameras.
Installation is simple. Just thread your camera's T-ring (not included) onto the 0.8x Reducer/Flattener. Then, attach the T-ring to your DSLR camera. Remove the diagonal from your telescope’s focuser and replace it with the flattener/camera assembly. Your telescope’s focal length and f/ratio will now be 0.8 times their normal figures.
"This accessory is a must-have for someone planning to use the TV-85 photographically" - review in Sky & Telescope, July 1999.
Manufacturer part number: TRF-2008
Useful Resources
User Manual: Tele Vue 2" 0.8x Reducer / Field Flattener Manual (PDF format, 3.94 MB)
Other Information
- Country of Manufacture: Japan

Tele Vue 2" 0.8x Reducer / Field Flattener for 400 - 600mm Focal Length Telescopes
