William Optics FLAT7A 0.8x Flattener Orion There are several aspects that

There are several aspects that have to come together when observing at high powers: good-to-perfect atmospheric seeing conditions

25" barrel 24 mm Length of 2" barrel 47

Explore Scientific’s HR Variable Coma Corrector is a high-performance optical corrector designed by world famous optical designer Harrie Rutten

At its core is an advanced 5-element Petzval optical design

William Optics FLAT7A 0.8x Flattener Orion There are several aspects thatNeeds to be ordered in Delivery timeframe about 10 business days from order. New William Optics Adjustable Flattener Reducer 0. 8x FLAT7A Optimised for William Optics refractors and designed to cover full frame sensors with a 44. 4mm fully illuminated imaging circle. Lens STM coated with a triplet apochromatic air spaced design. Produced entirely with the best Ohara optical glasses. Flattener Power: 0. 8x. 44. 4mm for full illuminated imaging circle.