BAADER SLOAN/SDSS Z-S' PHOTOMETRIC FILTER Clearance WA-WWD-150

WA-WWD-150

the electronic parts (control box + hand controls and cables)

The handle fits snugly in the finder bracket of the Evolux and can be used to carry the telescope easily

The Takahashi TOA-130NFB is an Ortho-Apochromatic triplet refractor with the highest possible correction of any refractor on the market

Specific for GM4000 mounts

BAADER SLOAN/SDSS Z-S' PHOTOMETRIC FILTER Clearance WA-WWD-150The Baader SLOAN z s' filter is a precision grade photometric bandpass filter with a central wavelength window around 893. 2nm. 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