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

TPO 1.25" Focal Reducer - 0.5X with 25mm Extension
$29.95
Item # OS-FR
OR
  • The TPO 0.5x focal reducer screws on to any 1.25” eyepieces barrel and provides a nominal reduction of 0.5X.
  • The reducer features a 2-element fully multi-coated optical design and blacked lens edges in a black anodized aluminum filter cell. It also has additional 1.25" filter threads, so you can screw/stack additional filters on to this reducer.
  • This package comes with a 25mm extension tube for further reduction.
Description

Details

TPO 0.5X Focal Reducer with 25mm Extension Tube

The Third Planet Optics 0.5x focal reducer screws on to any 1.25” eyepieces barrel and provides a nominal reduction of 0.5X. This package comes with a 25mm 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 blacked lens edges in a black anodized aluminum filter cell. It also has additional 1.25" 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" nosepiece!
Additional Information

Additional Information

SKU OS-FR
Manufacturer TPO
Barrel Size 1.25"
Warranty 1 Year Warranty
Reviews

Customer Reviews 3 item(s)

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 .
1= Houston, We Have a Problem & 5= It's Out of This World
Review by EdK / (Posted on 4/13/2013)
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.
1= Houston, We Have a Problem & 5= It's Out of This World
Review by Jason M / (Posted on 8/19/2009)
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.
1= Houston, We Have a Problem & 5= It's Out of This World
Review by / (Posted on 9/20/2007)
Included Items

Included Items

  • 0.5X 1.25" Focal Reducer
  • 25mm Extension Tube
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