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

Mechanical Diagram

1 lbs / 40

Applying iOptron's multi- decade experience creating precision mounts

After hours at the eyepiece

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.