Amazon.com : SVBONY Reducer for Telescope 0.5X Focal Reducer 1.25 inches Fully Multi Coated Reducer for Telescope Eyepiece Photography and Observing (Reducer) : Electronics
focal reducer spacing diagram - Imaging - Discussion - Stargazers Lounge
Agena's Guide to Focal Reducers
Calculations
Position of Focal Reducer - Beginning Deep Sky Imaging - Cloudy Nights
Focal Reducer 0.5x 1.25" – Astronz
Frustrations with focal reducer - Experienced Deep Sky Imaging - Cloudy Nights
Telescope, CCD and Eyepiece Calculator - Deep Sky Watch
SVBONY Reducer for Telescope 1.25 inches 0.5X Focal Reducer with C-Mount Adapter to CCD Camera for Telescope Eyepiece Photography and Observing : Amazon.ca: Electronics
Crop Factor Calculator
Thiery Legault - How to adjust the focal length ?
Astro Blog Delta « Celestron f/6.3 reducer/corrector with DSLR on C9.25 «
CropFactorPro: Lens Calculator by Vladislav Zhirnov
Bresser | Vixen Focal Reducer for VSD100 F3.8 | Expand Your Horizon
Thiery Legault - How to adjust the focal length ?
Bresser | Vixen ED 0.67x Focal reducer | Expand Your Horizon
Bresser | Vixen 0.71x Focal Reducer for VC200L | Expand Your Horizon
Focal Reducer for my Telescope - Beginners Forum (No Astrophotography) - Cloudy Nights
Mike 🔭 Rector on X: "Found a nice calculator to calculate FOV of your camera with and without a focal reducer: https://t.co/KxUdGb11nj should be able to fit the Pleiades in my FOV
Orion 0.8x Focal Reducer for Refractors - Bintel
Focal Reducer 0.5x 1.25" – Astronz
CropFactorPro: Lens Calculator by Vladislav Zhirnov
Bresser UK | EXPLORE SCIENTIFIC 3" 0.7x Reducer/corrector | Call 01342 837 098 for advice and sales.
Agena's Guide to Focal Reducers
Agena's Guide to Focal Reducers
Venus Optics Laowa 0.7x Focal Reducer for Probe Lens (EF to X Mount)
Mike 🔭 Rector on X: "Found a nice calculator to calculate FOV of your camera with and without a focal reducer: https://t.co/KxUdGb11nj should be able to fit the Pleiades in my FOV
