Optical Vision 2" Field Flattener
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A high-quality, non-focal-reducing Field Flattener optimised for DSLR imaging on refractor telescopes with focal ratios around f/5.5 to f6.0.
Will also provide much improved results on refractors with focal lengths narrowly outside this optimised f/range.
Integral T-Ring adaptor thread. High quality CNC machined body with gloss black anodised finish.
Features standard 2" push-fit barrel for use with 2" focusers.