SKU: 67373523640

Tele Vue 0.8x Photographic Field Reducer and Flattener

Sale price$33475.50 Regular price$37195.00
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Description

Tele Vue 0.8x Photographic Field Reducer and FlattenerReduces Focal Length by 0. 8x Widens Field & Shortens Exposures Shortens Exposures For Imaging Only Requires Camera Specific T Mount The Tele Vue RFL4087 0. 8x Field Reducer and Flattener is meant for use with Tele Vue's TV 102 Telescope, but works for all non flat field 800 1000mm refractors which have 2" focusers. The RFL4087 has a 2. 4" diameter female threaded front to work with their own IS system focuser, but you simply screw the RFL4087 reducer

  • Reduces Focal Length by 0.8x
  • Widens Field & Shortens Exposures
  • Shortens Exposures
  • For Imaging Only
  • Requires Camera-Specific T-Mount

The Tele Vue RFL4087 0.8x Field Reducer and Flattener is meant for use with Tele Vue's TV-102 Telescope, but works for all non-flat-field 800-1000mm refractors which have 2" focusers.  The RFL4087 has a 2.4" diameter female-threaded front to work with their own IS system focuser, but you simply screw the RFL4087 reducer into the back of Tele Vue's RAD1074 nosepiece adapter to use with the TV-102 or any other normal 2" focusers.

This reduces the focal length and speeds up the apertue of projected image by 20% for sensors up to 43mm ( full-frame DSLRs ), and flattens the field for better overall sharpness.

You can even add 48mm filters to the optical path by placing Tele Vue's AFT1105 filter adapter in front of this reducer ( AFT1105 does add 0.25" of spacing, so you'll need 0.25" of focuser in-travel length ).

Canon EOS SLR users should use the CWT-1070 adapter + a Canon EOS T-mount.  Nikon, Pentax, Sony, and Olympus Four Thirds mount users should buy the TRG1072 adapter plus their system's specific T-mount.

If you're using the SBIG STL11000 Research Series CCD camera, the STL1071 adapter is needed.  Additionally, some CCD cameras are shallower than the 55mm specified depth of the normal T-mount; in this case, Tele Vue's spacers would be placed between this reducer and the CCD camera.

Improves field flatness in imagery
Works with 2" focuers when combined with RAD1074 nosepiece adapter
Accepts AFT1105 48mm filter adapter at front
Packaging Info
Package Weight 0.7 lb
Box Dimensions (LxWxH) 4.0 x 3.5 x 2.5"
In the Box
Tele Vue 0.8x Photographic Field Reducer and Flattener
  • 5 Year Warranty
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 67373523640

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4.9 ★★★★★
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A
Verified Purchase
AK
Houston, US
★★★★★ 5
Fantastic tool for dog owners!
Size: 1-pack
This is a great tool to keep your dog active without getting your hands messy! I discovered it launches better when you don't push the ball completely into the holder, but just have it in partially. The ball included is nice and bouncy. The launcher also works with Kong balls.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
M
Verified Purchase
Marian M
San Leandro, US
★★★★★ 5
Endless Fetch Fun—Perfect for My Jack Russell!
Size: 1-pack
This ball launcher has been a total game-changer for fetch time with my Jack Russell! She has tons of energy, and this helps me keep up without wearing out my arm. It works great with most standard tennis balls, so I don’t have to worry about tracking down special ones.
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Reviewed in the United States on July 2, 2025
A
Verified Purchase
Amazon Customer
Carnegie, US
★★★★★ 4
It is good for small yards but not so good for distance.
Size: 1-pack
Getting used to a ball thrower takes practice. This one is no exception. The angle is off for me. If I use it as an extension of my arm it goes straight to the ground, but once I got the hang of it. Balls launch with great height. Distance isn't a feature for this tool.
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Reviewed in the United States on April 15, 2025
P
Verified Purchase
Phil
Chelsea, US
★★★★★ 3
Get a longer launcher. This only throws 30 ft
Size: 1+3pack
Buy a longer launcher!!! I got what I paid for! A 12.2 inch launcher does not build up enough energy to throw it very far and it is tweaking my elbow. The dog is very disappointed since the ball only goes about 30 feet. I’ll keep it for small dog park use. The balls are hard and my 22 pound Cockapoo can’t get it to squeak.
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Reviewed in the United States on May 10, 2026
R
Verified Purchase
Rob Settle
Los Angeles, US
★★★★★ 5
These are dog tested and approved.
Size: 1-pack
The launcher works very well and will probably last forever unless your dog chews it up while bring it to you to get you to play, but the balls, well, they're not made for labs, that's for sure. That's the bad news. The good news is that worn out or abandon tennis balls fit the launcher just fine. Save your throwing arm. Do your dog(s) a favor. Buy this thing.
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Reviewed in the United States on October 13, 2022

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