SVBONY SV209 Field Flattener for SV550 122mm Refractor Telescope(0.8X) | Corrects The Field Curvature and a Wider Field of View, Telescope Accessories for SV550 122mm APO Refractor Telescope 1.0X
SV209 0.8X focal reducer field flattener is designed specifically for prime focus astrophotography with the SV550 122mm f/7 apo refractor; suitable for shooting astronomy enthusiasts
SV209 field flattener can correct the defect of field curvature of the user's shooting target; improve the imaging quality and shooting efficiency of the edge of the field of view
SV209 0.8x focal reducer converts the 854mm focal length f/7 refractor into a 683.2mm f/5.6 system for faster and wider field astronomical and terrestrial photography
In addition to reducing the focal length of the telescope and thereby increasing the photographic speed; the flattens the normal field curvature inherent in refractors; SV209 reducer flattener provides images that are sharply focused out to the corners of DSLR and CCD imaging chips
SV209 0.8x reducer has a metric 63x1 thread; the telescope reducer flattener screws into the focuser to ensure a secure connection
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