BAADER SLOAN/SDSS Z-S' PHOTOMETRIC FILTER Clearance The Takahashi TOA-130NFB is an

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

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

Optical thickness of the adapter is 5mm

BAADER SLOAN/SDSS Z-S' PHOTOMETRIC FILTER Clearance The Takahashi TOA-130NFB is anThe 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