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Field Stop Diameter 4
5-inch HEX Focusers found on Explore FirstLight and select BRESSER Messier telescopes
Explore Scientific Rack and Pinion Focuser Extension Tube adds 1
A complete redesign of this Dobsonian was necessary to ensure the significantly increased requirements to stiffness and load bearing capacity of the optical components
these binoculars reveal craters on the moon
Nebula Filter CLS 1.25-inch Aperture_1. 40mm - 90mm Field Stop Diameter 4Explore Scientific Nebula Filter 1. 25" CLS Range from 436nm to 536nm with peak at 488nm. Transmission 98. 3% This is a general purpose light pollution reduction filter designed for observing the broad range of deep sky objects including nebulae and galaxies. The CLS does a good job of increasing contrast, providing a darker sky background.
US$ 13.50
US$ 13.50
US$ 13.50
US$ 13.50
US$ 13.50
US$ 13.50
