3" Flattener and .7X Focal Reducer ED All metal construction and anodizing

All metal construction and anodizing aluminum process

This maintains high light transmission through the entire optical system

Angular Field of View 1

This model also include the new feature-tension control handle

press the Sky Tour button: StarSense will automatically slew to all the best stars

3" Flattener and .7X Focal Reducer ED All metal construction and anodizingFor use with Explore Scientific ED127 152 165 Air Spaced Triplets 3. 0 inch O. D. with Adapters for Explore Scientific Focusers 0. 7x Reducer and Field Flattener NOTE: Separate adapter required for the ES 2. 5" HEX focuser. Explore Scientific's 3 inch Field Flattener 0. 7x Focal Reducer is a multi faceted accessory designed to enhance your astrophotography experiences. As a field flattener, this piece addresses the edge of field aberrations caused by