| Quantity | 3+ units | 10+ units | 30+ units | 50+ units | More |
|---|---|---|---|---|---|
| Price /Unit | $238.20 | $233.34 | $226.05 | $216.32 | Contact US |
Mirrosky Polar Finder Equatorial Mount Calibration Device for MiniAZ Astronomical Telescope Kit
$52.15
Mirrosky MiniAZ Portable Intelligent Astronomical Telescope 53ED Guidescope Support Equatorial/Theodolite Dual Mode
$368.91
iAFS 3 Integrated Lightweight 3” Electric Auto Focuser 6KG Load Capacity Support Full-time Manual Focus Function
$504.62
Askar 2.5-inch F3.9 0.7x Full-frame Reducer Professional Astronomical Accessory Dedicated for FRA400 Astrograph
Description:
- F3.9 full frame reducer for FRA400 astrograph, further reducing the focal length and thus shortening the exposure time on its original 400 focal length and f/5.6 focal ratio design basis. The reduction factor is 0.7x, and the reduced focal length is 280mm, which can satisfy most deep-sky astrophotography. The back focus is standard 55mm. The reducer has built-in M48x0.75 thread, easy for the attachment of 2" filters.
Package Included:
- 1 x Reducer
