UltraCat 56

The Ultracat 56 offers an optical upgrade from the venerable RedCat 51, with a superior 5-element advanced Petzval design delivering improved performance out to the corners of full frame sensors. The RMS spot size all the way out to the corners represents a 41% improvement vs the RedCat 51, with tighter RMS across the field for improved performance with high megapixel sensors.
Additional features like the built-in sensor tilt exterminator and camera angle adjuster allow for easy adjustments without removing the camera.
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Sensor Tilt Xterminator (STX)The built-in STX allows quick side-access tilt adjustments without removing the camera. |
Camera Angle RotatorCorrect any angular discrepancies, and get the perfect angle on your images. |
Specifications
|
Lens Type
|
5 Elements Advanced Petzval Design |
|
Focal Length
|
269 mm |
|
Diameter
|
56 mm |
|
Focal Ratio
|
f/4.8 |
|
Image Circle
|
50 mm |
|
Focuser
|
WIFD R&P Focuser
|
|
Focuser Travel Length
|
0-30 mm |
|
Adapter Included
|
Sensor Tilt Xterminator
Rotator
M54 Camera Adapter
M48 Camera Adapter
|
|
Optional Flattener
|
No Flattener Required
|
|
Camera Format
|
Full Frame
APS-C
M4/3
|
|
Total Weight
|
3.21 kg / 7.08 lbs |
|
OTA Weight
|
2.56 kg / 5.64 lbs |
|
Tube Length
|
296.3 mm - 348.3 mm |
Optical Performance

















