BAADER SLOAN/SDSS R' PHOTOMETRIC FILTER Size:1.25" such as the Evostar 80ED

such as the Evostar 80ED & 100ED

The Baader UFC RASA 11" adapter attaches to the UFC Base #BA2459110 for secure and flush fitment and allows you to use UFC Filter Changer with the Celestron RASA 11"

This flange can be clamped between the male and female threaded parts of every T-2 (M 42x0

The Avalon M-Uno mount is a portable single arm fork mount driven by the Fast Reverse Technology

The Baader M68 Tilter is allows for extremely precise tuning of the image plane with between 0 - 1° of tilt adjustment

BAADER SLOAN/SDSS R' PHOTOMETRIC FILTER Size:1.25" such as the Evostar 80EDThe Baader SLOAN r' filter is a precision grade photometric bandpass filter with a central wavelength window around 616. 6nm. In 2000, a new era in photometry began: with the Sloan Digital Sky Survey (SDSS), a 2. 5m telescope at Apache Point Observatory (New Mexico, USA) surveyed one third of the sky in five wavelengths, with windows around 355. 1, 468. 6, 616. 6, 748. 0 and 893. 2 nm. This system was also used for the Pan STARRS project; the broad