BAADER SLOAN/SDSS R' PHOTOMETRIC FILTER Size:1.25" This flange can be clamped

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

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

The Baader M68 Male to M54 Male adapter has a male M68 x 1 thread on one side and a male M54 x 0

2" nosepiece

1 x 3kg counterweight

BAADER SLOAN/SDSS R' PHOTOMETRIC FILTER Size:1.25" This flange can be clampedThe 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