Qualifies for Free Ground Economy Shipping (CONUS Only)
A portable, versatile 50mm quadruplet APO astrograph
Askar's petite new 50P Petzval optic provides sharp images with APS-C and smaller cameras, providing wide-angle views and fast, f/3.8 imaging. With its 190mm focal length, you'll get a roughly 7° field across the long side of APS-C cameras, and a still-wide 3.4° with the popular ASI585 cameras...
This is a great choice for beginners: The 50P's light weight makes it ideal for use on small tracking mounts like SkyWatcher's GTi and its relatively low magnification is forgiving of minor errors in tracking and polar alignment. Because of its Petzval design, there's no need for precise backfocus, either—anywhere from 50-65mm will work well, easy-peasy.
ρ Ophiuchi cloud complex | Askar 50P+ZWO ASI2600MC
Monoceros | Askar 50P+ZWO ASI2600MC
Specifications
|
Aperture size |
50mm |
|
Focal length |
190mm |
|
Focal ratio |
f/3.8 |
|
Objective lens |
Quadruplet petzval APO（including one piece of SD glass） |
|
Total length |
147mm(when the dew shield is contracted) |
|
Format specifications |
APS-C format（optimized for 1-inch sensors） |
|
Gross weight（including tube ring and dovetail plate） |
1.4kg |
|
Rear-end thread type |
M48 adapter (with M48×0.75 filter thread) |
|
Rear-end connection distance |
Support 50-65mm range (Recommended connection length is 55mm) |
|
Standard package items |
A 50P OTA，a manual |
