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With such a broad field
Explore Scientific 3X2" Focal Extender
This allows an even quicker adaptation to the ambient temperature and reduces the tube seeing (boundary layer removal)
The tilt changes the angle of incidence and optical path lengths inside the image sensor
8-1/2"-11-1/2"(216mm-292mm)
Explore Scientific 3" Flattener and .7X Focal Reducer Nikon With such a broad fieldExplore 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,
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