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Celestron EdgeHD 1100 telescope's .7x reducer lens instruction manual
This document provides instructions for installing the Celestron .7x Reducer Lens on EdgeHD 9.25, 11, and 14 telescopes. The lens reduces exposure times by half while providing a 43% wider field of view compared to the standard f/10 configuration. It is designed to be attached directly to the rear baffle lock nut of the telescope.
Read onlineCelestron .7x Reducer Lens specifications
| Compatible Telescopes | EdgeHD 9.25", 11" and 14" |
|---|---|
| Optimum Back Focus Distance | 146 mm |
| Exposure Time Reduction | one-half |
Source: Celestron EdgeHD 1100 telescope's .7x reducer lens instruction manual
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Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What is the recommended camera spacing?
The optimal photographic back focus is 146 mm, maintained within 1-3 mm of the recommended spacing.
From: Celestron EdgeHD 1100 telescope's .7x reducer lens instruction manual
How much does the exposure time reduce when using this lens?
Using the .7x reducer lens enables you to reduce your exposure times by one-half while capturing the same amount of light.
From: Celestron EdgeHD 1100 telescope's .7x reducer lens instruction manual
What is the benefit of using the .7x Reducer Lens?
It makes the telescope one full F-Stop faster than at f/11, reducing exposure times by one-half while providing a 43% wider field of view.
From: Instruction Manual for EdgeHD 14-inch Telescope .7x Reducer Lens
What is the recommended optimal spacing for the camera?
The optional T-Adapter can be used to attach cameras with 55 mm of back focus.
From: Instruction Manual for EdgeHD 14-inch Telescope .7x Reducer Lens