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A well-adjusted Crayford should hold about 3kg weight in the axial direction without losing focus without additional screw
The temperature of the sensor rising up and the camera shield becomming too hot to touch
The ASI533MM-PRO falls between the ASI294MM-PRO and ASI183MM-PRO
A long-range paging system can reach 800m in the open area
we put an UV IR-cut protective glass in Neptune-C
ZWO FF80 APO: Quintuplet APO Telescope Player One dealer UK A well-adjusted Crayford should holdMain Features ZWO FF80 APO 44mm image circle Supports full frame cameras Quadruplet air spaced APO design Small and round stars with a central RMS radius of 2. 5um Versatile adapter compatibility ZWO FF80 APO Specifications Observing mode: 148mm Aperture size: 80mm Net weight: 3. 9Kg Focal length: 600mm Gross weight: 4. 7Kg Focal ratio: f 7. 5 Image circle: 44mm Objective lens: Quadruplet air spaced APO (including two ED glass) Imaging mode: 115mm
