Rigs Apochromatic refractors
ZWO FF70 APO
Every camera in the catalogue on this telescope, at 490 mm and f/7.0. 52 pairings have a page; 1 sensor is larger than the stated image circle and listed without one.
The telescope
Aperture70mm
Focal length490mmnative
Focal ratiof/7.0
Image circle44mmthe maker's figure
OTA weight2.50kgno corrector needed
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 | 1.58″/px | 1.32 × 1.32° | 1.58pxpractical | fits15.99 of 44 mm |
| Player One Poseidon-C Pro | 1.58″/px | 2.75 × 1.84° | 1.58pxpractical | fits28.26 of 44 mm |
| Player One Poseidon-M Pro | 1.58″/px | 2.75 × 1.84° | 1.58pxpractical | fits28.26 of 44 mm |
| Player One Uranus-C | 1.22″/px | 1.31 × 0.74° | 2.05pxpractical | fits12.85 of 44 mm |
| QHY294M Pro | 1.95″/px | 2.25 × 1.51° | 1.28pxundersampled | fits23.23 of 44 mm |
| QHY600M (SBFL front section) | 1.58″/px | 4.21 × 2.81° | 1.58pxpractical | fits43.27 of 44 mm |
| QHY600M (standard, with CAA) | 1.58″/px | 4.21 × 2.81° | 1.58pxpractical | fits43.27 of 44 mm |
| ToupTek ATR183C | 1.01″/px | 1.53 × 1.02° | 2.47pxpractical | fits15.73 of 44 mm |
| ToupTek ATR183M | 1.01″/px | 1.53 × 1.02° | 2.47pxpractical | fits15.73 of 44 mm |
| ToupTek ATR2110C | 5.05″/px | 2.71 × 1.71° | 0.49pxbadly undersampled | fits27.41 of 44 mm |
| ToupTek ATR2600C | 1.58″/px | 2.74 × 1.84° | 1.58pxpractical | fits28.18 of 44 mm |
| ToupTek ATR2600M | 1.58″/px | 2.74 × 1.84° | 1.58pxpractical | fits28.18 of 44 mm |
| ToupTek ATR294C | 1.95″/px | 2.23 × 1.52° | 1.28pxundersampled | fits23.10 of 44 mm |
| ToupTek ATR294M | 1.95″/px | 2.23 × 1.52° | 1.28pxundersampled | fits23.10 of 44 mm |
| ToupTek ATR3CMOS07100KMA | 1.89″/px | 1.68 × 1.16° | 1.32pxundersampled | fits17.47 of 44 mm |
| ToupTek ATR3CMOS07100KPA | 1.89″/px | 1.68 × 1.16° | 1.32pxundersampled | fits17.47 of 44 mm |
| ToupTek ATR432C | 3.79″/px | 1.68 × 1.16° | 0.66pxbadly undersampled | fits17.47 of 44 mm |
| ToupTek ATR432M | 3.79″/px | 1.68 × 1.16° | 0.66pxbadly undersampled | fits17.47 of 44 mm |
| ToupTek ATR533C | 1.58″/px | 1.32 × 1.32° | 1.58pxpractical | fits15.97 of 44 mm |
| ToupTek ATR533M | 1.58″/px | 1.32 × 1.32° | 1.58pxpractical | fits15.97 of 44 mm |
| ToupTek ATR585C | 1.22″/px | 1.31 × 0.74° | 2.05pxpractical | fits12.85 of 44 mm |
| ToupTek ATR585M | 1.22″/px | 1.31 × 0.74° | 2.05pxpractical | fits12.85 of 44 mm |
| ToupTek SkyEye24AC-plus | 2.50″/px | 4.21 × 2.81° | 1.00pxundersampled | fits43.28 of 44 mm |
| ToupTek SkyEye26AC-plus | 1.58″/px | 2.74 × 1.84° | 1.58pxpractical | fits28.18 of 44 mm |
| ToupTek SkyEye26AM-plus | 1.58″/px | 2.74 × 1.84° | 1.58pxpractical | fits28.18 of 44 mm |
| ToupTek SkyEye45AC-plus | 1.85″/px | 4.21 × 2.81° | 1.35pxundersampled | fits43.32 of 44 mm |
| ToupTek SkyEye62AC-plus | 1.58″/px | 4.20 × 2.80° | 1.58pxpractical | fits43.24 of 44 mm |
| ToupTek SkyEye62AM-plus | 1.58″/px | 4.20 × 2.80° | 1.58pxpractical | fits43.24 of 44 mm |
| ZWO ASI071MC Pro | 2.01″/px | 2.76 × 1.82° | 1.24pxundersampled | fits28.29 of 44 mm |
| ZWO ASI1600MM Pro | 1.60″/px | 2.06 × 1.56° | 1.56pxpractical | fits22.06 of 44 mm |
| ZWO ASI183MC Pro | 1.01″/px | 1.54 × 1.03° | 2.47pxpractical | fits15.86 of 44 mm |
| ZWO ASI183MM Pro | 1.01″/px | 1.54 × 1.03° | 2.47pxpractical | fits15.86 of 44 mm |
| ZWO ASI2400MC Pro | 2.50″/px | 4.21 × 2.81° | 1.00pxundersampled | fits43.27 of 44 mm |
| ZWO ASI2600MC Air | 1.58″/px | 2.75 × 1.84° | 1.58pxpractical | fits28.26 of 44 mm |
| ZWO ASI2600MC DUO | 1.58″/px | 2.75 × 1.84° | 1.58pxpractical | fits28.26 of 44 mm |
| ZWO ASI2600MC Pro | 1.58″/px | 2.75 × 1.84° | 1.58pxpractical | fits28.26 of 44 mm |
| ZWO ASI2600MM Air | 1.58″/px | 2.75 × 1.84° | 1.58pxpractical | fits28.26 of 44 mm |
| ZWO ASI2600MM DUO | 1.58″/px | 2.75 × 1.84° | 1.58pxpractical | fits28.26 of 44 mm |
| ZWO ASI2600MM Pro | 1.58″/px | 2.75 × 1.84° | 1.58pxpractical | fits28.26 of 44 mm |
| ZWO ASI294MC Pro | 1.95″/px | 2.24 × 1.52° | 1.28pxundersampled | fits23.19 of 44 mm |
| ZWO ASI294MM Pro | 1.95″/px | 2.24 × 1.52° | 1.28pxundersampled | fits23.19 of 44 mm |
| ZWO ASI4400MC Pro | 1.85″/px | 4.21 × 2.81° | 1.35pxundersampled | fits43.27 of 44 mm |
| ZWO ASI461MM Pro | 1.58″/px | 5.12 × 3.85° | 1.58pxpractical | sensor larger than the stated image circle54.82 mm diagonal, 44 mm stated |
| ZWO ASI533MC Pro | 1.58″/px | 1.32 × 1.32° | 1.58pxpractical | fits15.99 of 44 mm |
| ZWO ASI533MM Pro | 1.58″/px | 1.32 × 1.32° | 1.58pxpractical | fits15.99 of 44 mm |
| ZWO ASI585MC Air | 1.22″/px | 1.31 × 0.74° | 2.05pxpractical | fits12.85 of 44 mm |
| ZWO ASI585MC Pro | 1.22″/px | 1.30 × 0.73° | 2.05pxpractical | fits12.78 of 44 mm |
| ZWO ASI585MM Air | 1.22″/px | 1.31 × 0.74° | 2.05pxpractical | fits12.85 of 44 mm |
| ZWO ASI585MM Pro | 1.22″/px | 1.30 × 0.73° | 2.05pxpractical | fits12.78 of 44 mm |
| ZWO ASI6200MC Pro | 1.58″/px | 4.21 × 2.81° | 1.58pxpractical | fits43.27 of 44 mm |
| ZWO ASI6200MM Pro | 1.58″/px | 4.21 × 2.81° | 1.58pxpractical | fits43.27 of 44 mm |
| ZWO ASI990MM Pro | 2.10″/px | 0.75 × 0.60° | 1.19pxundersampled | fits8.20 of 44 mm |
| ZWO ASI991MM Pro | 2.10″/px | 0.38 × 0.30° | 1.19pxundersampled | 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