The Celestron EdgeHD 800 0.7x Reducer is a 4-element corrector for the EdgeHD 8" telescope. The flattener/reducer uses extra-low dispersion lanthanum glass elements for excellent chromatic correction and high contrast. The 0.7x reduction factor shortens the focal ratio of the EdgeHD 8" to f/7, halving the exposure time and increasing the field of view by 43%.
When paired with this flattener/reducer, the focal length of the EdgeHD 8" becomes 1422mm, giving an excellent field of view for galaxies. The flattener/reducer has a backfocus requirement of 105mm, leaving plenty of room for accessories. The field correction is suitable for APS-C sensors such as the ASI2600.
All air-to-glass optical surfaces have multiple layers of coatings for maximum light transmission and colour correction. Additionally, each lens has blackened edges to minimize internal reflections and maximize contrast. The CNC-machined aluminium housing keeps the elements secure and precisely aligned.
Specifications
| Reduction factor | 0.7 x |
|---|---|
| Telescope connection | 2" SC female |
| Camera connection | 2" SC male |
| Image circle | APS-C |
| Backfocus distance | 105 mm |
| Weight | 360 g |
| SKU | CE-94242 |
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