Rigs Apochromatic refractors
Askar FMA180 Pro
Every camera in the catalogue on this telescope, at 180 mm and f/4.5. 52 pairings have a page; 1 sensor is larger than the stated image circle and listed without one.
No corrector for this telescope is in the catalogue, so these figures are at the native focal length.
The telescope
Aperture40mm
Focal length180mmnative
Focal ratiof/4.5
Image circle44mmthe maker's figure
OTA weight0.80kgneeds a corrector
Figures from the maker’s page. Source. Provisional: the row has not yet had a second, human check.
Every camera
Sampling is the star’s FWHM in pixels at 2.5″ seeing; every band is a tradeoff, and wide fields are undersampled on purpose. Each camera name opens its page.
| Camera | Scale | Field | At 2.5″ | Image circle |
|---|---|---|---|---|
| Player One Ares-C Pro | 4.31″/px | 3.60 × 3.60° | 0.58pxbadly undersampled | fits15.99 of 44 mm |
| Player One Poseidon-C Pro | 4.31″/px | 7.47 × 4.99° | 0.58pxbadly undersampled | fits28.26 of 44 mm |
| Player One Poseidon-M Pro | 4.31″/px | 7.47 × 4.99° | 0.58pxbadly undersampled | fits28.26 of 44 mm |
| Player One Uranus-C | 3.32″/px | 3.56 × 2.01° | 0.75pxbadly undersampled | fits12.85 of 44 mm |
| QHY294M Pro | 5.31″/px | 6.13 × 4.12° | 0.47pxbadly undersampled | fits23.23 of 44 mm |
| QHY600M (SBFL front section) | 4.31″/px | 11.42 × 7.63° | 0.58pxbadly undersampled | fits43.27 of 44 mm |
| QHY600M (standard, with CAA) | 4.31″/px | 11.42 × 7.63° | 0.58pxbadly undersampled | fits43.27 of 44 mm |
| ToupTek ATR183C | 2.75″/px | 4.16 × 2.79° | 0.91pxundersampled | fits15.73 of 44 mm |
| ToupTek ATR183M | 2.75″/px | 4.16 × 2.79° | 0.91pxundersampled | fits15.73 of 44 mm |
| ToupTek ATR2110C | 13.75″/px | 7.37 × 4.64° | 0.18pxbadly undersampled | fits27.41 of 44 mm |
| ToupTek ATR2600C | 4.31″/px | 7.44 × 4.99° | 0.58pxbadly undersampled | fits28.18 of 44 mm |
| ToupTek ATR2600M | 4.31″/px | 7.44 × 4.99° | 0.58pxbadly undersampled | fits28.18 of 44 mm |
| ToupTek ATR294C | 5.31″/px | 6.07 × 4.14° | 0.47pxbadly undersampled | fits23.10 of 44 mm |
| ToupTek ATR294M | 5.31″/px | 6.07 × 4.14° | 0.47pxbadly undersampled | fits23.10 of 44 mm |
| ToupTek ATR3CMOS07100KMA | 5.16″/px | 4.58 × 3.15° | 0.48pxbadly undersampled | fits17.47 of 44 mm |
| ToupTek ATR3CMOS07100KPA | 5.16″/px | 4.58 × 3.15° | 0.48pxbadly undersampled | fits17.47 of 44 mm |
| ToupTek ATR432C | 10.31″/px | 4.58 × 3.15° | 0.24pxbadly undersampled | fits17.47 of 44 mm |
| ToupTek ATR432M | 10.31″/px | 4.58 × 3.15° | 0.24pxbadly undersampled | fits17.47 of 44 mm |
| ToupTek ATR533C | 4.31″/px | 3.60 × 3.59° | 0.58pxbadly undersampled | fits15.97 of 44 mm |
| ToupTek ATR533M | 4.31″/px | 3.60 × 3.59° | 0.58pxbadly undersampled | fits15.97 of 44 mm |
| ToupTek ATR585C | 3.32″/px | 3.56 × 2.01° | 0.75pxbadly undersampled | fits12.85 of 44 mm |
| ToupTek ATR585M | 3.32″/px | 3.56 × 2.01° | 0.75pxbadly undersampled | fits12.85 of 44 mm |
| ToupTek SkyEye24AC-plus | 6.81″/px | 11.43 × 7.63° | 0.37pxbadly undersampled | fits43.28 of 44 mm |
| ToupTek SkyEye26AC-plus | 4.31″/px | 7.44 × 4.99° | 0.58pxbadly undersampled | fits28.18 of 44 mm |
| ToupTek SkyEye26AM-plus | 4.31″/px | 7.44 × 4.99° | 0.58pxbadly undersampled | fits28.18 of 44 mm |
| ToupTek SkyEye45AC-plus | 5.04″/px | 11.44 × 7.64° | 0.50pxbadly undersampled | fits43.32 of 44 mm |
| ToupTek SkyEye62AC-plus | 4.31″/px | 11.41 × 7.62° | 0.58pxbadly undersampled | fits43.24 of 44 mm |
| ToupTek SkyEye62AM-plus | 4.31″/px | 11.41 × 7.62° | 0.58pxbadly undersampled | fits43.24 of 44 mm |
| ZWO ASI071MC Pro | 5.48″/px | 7.50 × 4.96° | 0.46pxbadly undersampled | fits28.29 of 44 mm |
| ZWO ASI1600MM Pro | 4.35″/px | 5.60 × 4.23° | 0.57pxbadly undersampled | fits22.06 of 44 mm |
| ZWO ASI183MC Pro | 2.75″/px | 4.20 × 2.80° | 0.91pxundersampled | fits15.86 of 44 mm |
| ZWO ASI183MM Pro | 2.75″/px | 4.20 × 2.80° | 0.91pxundersampled | fits15.86 of 44 mm |
| ZWO ASI2400MC Pro | 6.81″/px | 11.42 × 7.63° | 0.37pxbadly undersampled | fits43.27 of 44 mm |
| ZWO ASI2600MC Air | 4.31″/px | 7.47 × 4.99° | 0.58pxbadly undersampled | fits28.26 of 44 mm |
| ZWO ASI2600MC DUO | 4.31″/px | 7.47 × 4.99° | 0.58pxbadly undersampled | fits28.26 of 44 mm |
| ZWO ASI2600MC Pro | 4.31″/px | 7.47 × 4.99° | 0.58pxbadly undersampled | fits28.26 of 44 mm |
| ZWO ASI2600MM Air | 4.31″/px | 7.47 × 4.99° | 0.58pxbadly undersampled | fits28.26 of 44 mm |
| ZWO ASI2600MM DUO | 4.31″/px | 7.47 × 4.99° | 0.58pxbadly undersampled | fits28.26 of 44 mm |
| ZWO ASI2600MM Pro | 4.31″/px | 7.47 × 4.99° | 0.58pxbadly undersampled | fits28.26 of 44 mm |
| ZWO ASI294MC Pro | 5.31″/px | 6.11 × 4.14° | 0.47pxbadly undersampled | fits23.19 of 44 mm |
| ZWO ASI294MM Pro | 5.31″/px | 6.11 × 4.14° | 0.47pxbadly undersampled | fits23.19 of 44 mm |
| ZWO ASI4400MC Pro | 5.04″/px | 11.42 × 7.63° | 0.50pxbadly undersampled | fits43.27 of 44 mm |
| ZWO ASI461MM Pro | 4.31″/px | 13.89 × 10.44° | 0.58pxbadly undersampled | sensor larger than the stated image circle54.82 mm diagonal, 44 mm stated |
| ZWO ASI533MC Pro | 4.31″/px | 3.60 × 3.60° | 0.58pxbadly undersampled | fits15.99 of 44 mm |
| ZWO ASI533MM Pro | 4.31″/px | 3.60 × 3.60° | 0.58pxbadly undersampled | fits15.99 of 44 mm |
| ZWO ASI585MC Air | 3.32″/px | 3.56 × 2.01° | 0.75pxbadly undersampled | fits12.85 of 44 mm |
| ZWO ASI585MC Pro | 3.32″/px | 3.54 × 1.99° | 0.75pxbadly undersampled | fits12.78 of 44 mm |
| ZWO ASI585MM Air | 3.32″/px | 3.56 × 2.01° | 0.75pxbadly undersampled | fits12.85 of 44 mm |
| ZWO ASI585MM Pro | 3.32″/px | 3.54 × 1.99° | 0.75pxbadly undersampled | fits12.78 of 44 mm |
| ZWO ASI6200MC Pro | 4.31″/px | 11.42 × 7.63° | 0.58pxbadly undersampled | fits43.27 of 44 mm |
| ZWO ASI6200MM Pro | 4.31″/px | 11.42 × 7.63° | 0.58pxbadly undersampled | fits43.27 of 44 mm |
| ZWO ASI990MM Pro | 5.73″/px | 2.04 × 1.63° | 0.44pxbadly undersampled | fits8.20 of 44 mm |
| ZWO ASI991MM Pro | 5.73″/px | 1.04 × 0.83° | 0.44pxbadly undersampled | fits4.19 of 44 mm |
No sensor size in the catalogue, so no figures: Canon EF body + T-ring, Canon EF-S body + T-ring, Canon RF body + T-ring, Fujifilm X body + T-ring, L-mount (Leica / Panasonic / Sigma) body + T-ring, Micro Four Thirds body + T-ring, Nikon F body + T-ring, Nikon Z body + T-ring, Pentax K body + T-ring, QHY268C, QHY268M, QHY533C, QHY533M, Sony E / FE body + T-ring, ToupTek SkyEye24AC, ToupTek SkyEye62AC, ToupTek SkyEye62AM.
Last updated Computed from the catalogue when the site is builtEvery telescope