QHY183M 20MP Back-Illuminated Cooled Monochrome Camera
Price as Configured: $999.00
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For cameras with a one-inch or smaller sensor (QHY183M/178/174/290), QHY recommends a combination of CFW3S-US + OAGS (optional);
Model | BFL Consumed | Filters Supported |
QHY183M/174M/550P | 17.5mm | 7 position
1.25inch mounted /31mm unmounted |
CFW3S-US | 15.5mm | |
OAGS | 10mm |
Back Focal Length (BFL), in the commercial camera field, refers to the design distance from the center of the rear lens element to the surface of the sensor. Generally, the lens will only focus correctly at infinity if the camera’s back focal length meets the standard requirements provided by the lens manufacturer. This is also true for many Multi-Purpose Coma Correctors designed to be used on telescopes before the camera.
Optical system | Back focal length required |
Typical Multi-Purpose Coma Corrector | 55mm – 57.5mm |
Canon 35mm lens | 44.1mm |
Nikon 35mm lens | 46.5mm |
Currently QHY only provides the M42 All-in-one pack for QHY183M. Different from kits above, all adapters/spacers in this pack share M42 screws rather than M54. This kit ONLY suits the combo of QHY183M+CFW3S-US/CFW3S-SR+OAGS. Below lists some examples of using the kit (M42 Nikon/Canon adapter not included in this pack)
Note: this kit also suits other cameras with sensors one inch or smaller (e.g., QHY183/178/174/290).