or 4 payments of $ 437.25 with Afterpay. Model: skywatcher_field_flattener_PROD-134632. Will also provide much improved results on refractors with focal lengths narrowly outside this optimised f/range. Looks brand new. 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. Be the first to Write a Review for this item! Unable to remove nosepiece originally so returned but now all sorted. Brand: OVL. Orion Field Flattener 3 inch for EON 115/130 $ 499.00 AUD. Celestron Reducer 0.7x Edge HD1400 $ 2,035.00 $ 1,749.00 AUD. OVL Field Flattener With T Ring Adaptor £72.00. Superb quality, non-focal reducing Field Flattener optimised for DSLR imaging on refractor telescopes with focal ratios of between f/5.5 to f6.0. Add to cart $ 2,035.00 $ 1,749.00 AUD. Customer reviews. Integral T-Ring adaptor thread. Tweet: Description; Superb quality, non-focal reducing Field Flattener optimised for DSLR imaging on refractor telescopes with focal ratios of between f/5.5 to f6.0. Will also provide much improved results on refractors … or 4 payments of $ 94.75 with Afterpay. FAQ Orion's handy field flattener resolves the issue The Field Flattener for Short Refractors by Orion: Optically fast refractor telescopes used for astrophotography are often plagued by significant field curvature, which is especially noticeable when using CCD imagers with APS-C sized and larger sensors, or DSLR cameras. Customer Return OVL Field Flattener. 14% OFF! Add to cart $ 379.00 AUD. Will also provide much improved results on refractors with focal lengths narrowly outside this optimised f/range. Tele Vue Large Field Corrector (NP101/127is) $ 379.00 AUD. Find a Dealer Send to Friend Print Page. buy DETAILS (1) Superb quality, non-focal reducing Field Flattener optimised for DSLR imaging on refractor telescopes with focal ratios of between f/5.5 to f6.0. Full manufacturers warranty. Sale!