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This allows an even quicker adaptation to the ambient temperature and reduces the tube seeing (boundary layer removal)
Explore Scientific 3X2" Focal Extender
Home Location set by IP Address automatically*
The tilt changes the angle of incidence and optical path lengths inside the image sensor
Special low expansion H-PZ33 Material Secondary mirror 71
Explore Scientific 3" Flattener and .7X Focal Reducer Nikon This allows an even quickerExplore Scientific 3" Flattener With . 7X Focal Reducer Introducing this High quality and functional 3" Flattener With . 7X Focal Reducer by Explore Scientific. This 3" Field Flattener . 7x Focal Reducer is designed to enhance your astrophotography experiences and is a multi faceted accessory. This addresses the edge of field aberrations caused by curved focal planes as a field flattener to ensure that your night at the eyepiece results in crisp,