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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
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Lens Type
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5 Elements Advanced Petzval Design |
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Focal Length
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269 mm |
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Diameter
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56 mm |
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Focal Ratio
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f/4.8 |
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Image Circle
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50 mm |
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Focuser
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WIFD R&P Focuser
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Focuser Travel Length
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0-30 mm |
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Adapter Included
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Sensor Tilt Xterminator
Rotator
M54 Camera Adapter
M48 Camera Adapter
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Optional Flattener
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No Flattener Required
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Camera Format
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Full Frame
APS-C
M4/3
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Total Weight
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3.21 kg / 7.08 lbs |
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OTA Weight
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2.56 kg / 5.64 lbs |
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Tube Length
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296.3 mm - 348.3 mm |
Optical Performance
