TPO 1.25" Focal Reducer - 0.5X with 25mm Extension

ITEM #
OS-FR
  • Blackened Lens Edges
  • 2 Element Fully Multi-Coated Optics
  • Stackable Threaded Design
  • Nominal Reduction of 0.5X
  • Size: 1.25-inch
  • Includes a 25 mm Extension Tube!

 

  • Sale
  • Regular price $24.26

Back Ordered
Free Shipping
Add to Wishlist
Already have gear? Trade it in for cash or new equipment.

Accessories Added

Rod, Telescope Expert

Want Help?

Just ask one of our sales reps

1.800.483.6287

TPO 1.25" Focal Reducer - 0.5X with 25mm Extension

The Third Planet Optics 0.5x focal reducer screws on to any 1.25-inch eyepieces barrel and provides a nominal reduction of 0.5X. This package comes with a 25 mm extension tube for further reduction. The actual focal length reduction will vary a little depending on where the focal reducer is placed in the optical path. The reducer features a 2-element fully multi-coated optical design and blackened lens edges in a black anodized aluminum filter cell. It also has additional 1.25-inch filter threads, so you can screw/stack additional filters on to this reducer. Will work with all Meade DSI cameras, the Meade LPI, the Celestron NexImage, the Orion StarShoot cameras and most CCD cameras that use a 1.25-inch nosepiece!

 

 

OPT Product Number: OS-FR

SPECIFICATIONS

Focal Length Reduction0.5X/ Nominal
Free ShippingYes
ManufacturerTPO
Optical CoatingsFully Multi Coated

Customer Reviews

3.3 Based on 3 Reviews
5 ★
33% 
1
4 ★
0% 
0
3 ★
33% 
1
2 ★
33% 
1
1 ★
0% 
0
Write a Review Ask a Question
  • Reviews
  • Questions

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
E
04/13/2013
EdK

Great bang for the buck !

I am about to order my second of these . I use it on a 12inch SCT with a Stellacam3, for the last 2 years. I have no edge issues or otherwise. I can say I am very pleased with the one I have, just would like another one in case something were to happen to this one .

JM
08/19/2009
Jason M.

Almost a wonderful product

My only issue with this product is the coma - it's pretty significant - generally I found myself cropping off the outter 20-30% of the image (752 X 582 cropped down to about 640x480 typically to trim off the worst of the coma. That being said, focal reducers typically exhibit better/worse coma depending on distance from the sensor. W/o a variety of different length nosepices for the DSI II, i could not experiment with varying the distance - it's possible there is a distance which eliminates this coma. I'd really like to see some tests because having a nosepiece focal reducer on the DSI II would be awesome.

A
09/20/2007
anonymous

Customer review

Bad coma when used with Meade DSI Pro II. I would not use it capture images. It may have some use for guiding though. It does widen the FOV in case a good guide star is out of the imager's normal FOV.