in stock !
Takahashi has released a new flattener for use with the FSQ-85EDX telescope that provides a flat field like that of the FSQ-106EDX4 for full frame DSLR and CCD cameras. When originally conceived, the FSQ-85EDX was meant for use with APS-C or smaller CCD or CMOS chips. At an image circle radius beyond about 14 mm, field curvature could become evident in larger chips. This new flattener will greatly reduce this field curvature, resulting in a practically flat field out to a 22mm image circle radius.
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