Antlia 3nm OIII Pro Series Filter - 31 mm - OIII-PRO-3NM-31 StarField Newtonians Model C26ECA3 Center-balanced Equatorial Mount

Model C26ECA3 Center-balanced Equatorial Mount from iOptron delivers precise pointing and accurate tracking

Ball head adapter is included

375 inch surface

2 x USB2 High-Speed Ports

The ED lenses ensure that each wavelength of light is kept in balance with all the others to provide an image which is true-to-life

Antlia 3nm OIII Pro Series Filter - 31 mm - OIII-PRO-3NM-31 StarField Newtonians Model C26ECA3 Center-balanced Equatorial MountThis very narrowband 3 nm OIII filter from Antlia is part of their Pro series and is of the 31 mm unmounted variety. It is normally used in a 1. 25" 31mm filter wheel, where it drops into place. Antlia 3nm Pro Series Oxygen III Filter 31 mm The Antlia OIII Pro narrowband filter optimizes the FWHM (full width half maximum) to 3nm bandpass. As the bandwidth becomes narrower, the 3nm Pro narrowband filters enhance contrast of emission targets by lowering