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Rigs Petzval astrographs

William Optics RedCat 61 WIFD

Every camera in the catalogue on this telescope, at 300 mm and f/4.9. 52 pairings have a page; 1 sensor is larger than the stated image circle and listed without one.

The telescope

Aperture61mm
Focal length300mmnative
Focal ratiof/4.9
Image circle46mmthe maker's figure
OTA weight2.47kgno 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.

Every camera in the catalogue on the William Optics RedCat 61 WIFD: image scale, field, sampling and image circle
CameraScaleFieldAt 2.5″Image circle
Player One Ares-C Pro2.59″/px2.16 × 2.16°0.97pxundersampledfits15.99 of 46 mm
Player One Poseidon-C Pro2.59″/px4.49 × 3.00°0.97pxundersampledfits28.26 of 46 mm
Player One Poseidon-M Pro2.59″/px4.49 × 3.00°0.97pxundersampledfits28.26 of 46 mm
Player One Uranus-C1.99″/px2.14 × 1.20°1.25pxundersampledfits12.85 of 46 mm
QHY294M Pro3.18″/px3.68 × 2.47°0.79pxbadly undersampledfits23.23 of 46 mm
QHY600M (SBFL front section)2.59″/px6.87 × 4.58°0.97pxundersampledfits43.27 of 46 mm
QHY600M (standard, with CAA)2.59″/px6.87 × 4.58°0.97pxundersampledfits43.27 of 46 mm
ToupTek ATR183C1.65″/px2.49 × 1.67°1.52pxpracticalfits15.73 of 46 mm
ToupTek ATR183M1.65″/px2.49 × 1.67°1.52pxpracticalfits15.73 of 46 mm
ToupTek ATR2110C8.25″/px4.43 × 2.79°0.30pxbadly undersampledfits27.41 of 46 mm
ToupTek ATR2600C2.59″/px4.47 × 3.00°0.97pxundersampledfits28.18 of 46 mm
ToupTek ATR2600M2.59″/px4.47 × 3.00°0.97pxundersampledfits28.18 of 46 mm
ToupTek ATR294C3.18″/px3.65 × 2.48°0.79pxbadly undersampledfits23.10 of 46 mm
ToupTek ATR294M3.18″/px3.65 × 2.48°0.79pxbadly undersampledfits23.10 of 46 mm
ToupTek ATR3CMOS07100KMA3.09″/px2.75 × 1.89°0.81pxundersampledfits17.47 of 46 mm
ToupTek ATR3CMOS07100KPA3.09″/px2.75 × 1.89°0.81pxundersampledfits17.47 of 46 mm
ToupTek ATR432C6.19″/px2.75 × 1.89°0.40pxbadly undersampledfits17.47 of 46 mm
ToupTek ATR432M6.19″/px2.75 × 1.89°0.40pxbadly undersampledfits17.47 of 46 mm
ToupTek ATR533C2.59″/px2.16 × 2.15°0.97pxundersampledfits15.97 of 46 mm
ToupTek ATR533M2.59″/px2.16 × 2.15°0.97pxundersampledfits15.97 of 46 mm
ToupTek ATR585C1.99″/px2.14 × 1.20°1.25pxundersampledfits12.85 of 46 mm
ToupTek ATR585M1.99″/px2.14 × 1.20°1.25pxundersampledfits12.85 of 46 mm
ToupTek SkyEye24AC-plus4.08″/px6.87 × 4.58°0.61pxbadly undersampledfits43.28 of 46 mm
ToupTek SkyEye26AC-plus2.59″/px4.47 × 3.00°0.97pxundersampledfits28.18 of 46 mm
ToupTek SkyEye26AM-plus2.59″/px4.47 × 3.00°0.97pxundersampledfits28.18 of 46 mm
ToupTek SkyEye45AC-plus3.03″/px6.88 × 4.59°0.83pxundersampledfits43.32 of 46 mm
ToupTek SkyEye62AC-plus2.59″/px6.86 × 4.58°0.97pxundersampledfits43.24 of 46 mm
ToupTek SkyEye62AM-plus2.59″/px6.86 × 4.58°0.97pxundersampledfits43.24 of 46 mm
ZWO ASI071MC Pro3.29″/px4.50 × 2.98°0.76pxbadly undersampledfits28.29 of 46 mm
ZWO ASI1600MM Pro2.61″/px3.36 × 2.54°0.96pxundersampledfits22.06 of 46 mm
ZWO ASI183MC Pro1.65″/px2.52 × 1.68°1.52pxpracticalfits15.86 of 46 mm
ZWO ASI183MM Pro1.65″/px2.52 × 1.68°1.52pxpracticalfits15.86 of 46 mm
ZWO ASI2400MC Pro4.08″/px6.87 × 4.58°0.61pxbadly undersampledfits43.27 of 46 mm
ZWO ASI2600MC Air2.59″/px4.49 × 3.00°0.97pxundersampledfits28.26 of 46 mm
ZWO ASI2600MC DUO2.59″/px4.49 × 3.00°0.97pxundersampledfits28.26 of 46 mm
ZWO ASI2600MC Pro2.59″/px4.49 × 3.00°0.97pxundersampledfits28.26 of 46 mm
ZWO ASI2600MM Air2.59″/px4.49 × 3.00°0.97pxundersampledfits28.26 of 46 mm
ZWO ASI2600MM DUO2.59″/px4.49 × 3.00°0.97pxundersampledfits28.26 of 46 mm
ZWO ASI2600MM Pro2.59″/px4.49 × 3.00°0.97pxundersampledfits28.26 of 46 mm
ZWO ASI294MC Pro3.18″/px3.67 × 2.48°0.79pxbadly undersampledfits23.19 of 46 mm
ZWO ASI294MM Pro3.18″/px3.67 × 2.48°0.79pxbadly undersampledfits23.19 of 46 mm
ZWO ASI4400MC Pro3.03″/px6.87 × 4.58°0.83pxundersampledfits43.27 of 46 mm
ZWO ASI461MM Pro2.59″/px8.36 × 6.28°0.97pxundersampledsensor larger than the stated image circle54.82 mm diagonal, 46 mm stated
ZWO ASI533MC Pro2.59″/px2.16 × 2.16°0.97pxundersampledfits15.99 of 46 mm
ZWO ASI533MM Pro2.59″/px2.16 × 2.16°0.97pxundersampledfits15.99 of 46 mm
ZWO ASI585MC Air1.99″/px2.14 × 1.20°1.25pxundersampledfits12.85 of 46 mm
ZWO ASI585MC Pro1.99″/px2.13 × 1.20°1.25pxundersampledfits12.78 of 46 mm
ZWO ASI585MM Air1.99″/px2.14 × 1.20°1.25pxundersampledfits12.85 of 46 mm
ZWO ASI585MM Pro1.99″/px2.13 × 1.20°1.25pxundersampledfits12.78 of 46 mm
ZWO ASI6200MC Pro2.59″/px6.87 × 4.58°0.97pxundersampledfits43.27 of 46 mm
ZWO ASI6200MM Pro2.59″/px6.87 × 4.58°0.97pxundersampledfits43.27 of 46 mm
ZWO ASI990MM Pro3.44″/px1.22 × 0.98°0.73pxbadly undersampledfits8.20 of 46 mm
ZWO ASI991MM Pro3.44″/px0.63 × 0.50°0.73pxbadly undersampledfits4.19 of 46 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