ANTLIA SLOAN g' r' i' z' Filter SET - 50mm Round (unmounted)

The Sloan Digital Sky Survey (SDSS) photometric system is the most common filter set used by observatories today. Antlia Photometric Sloan filter set includes four mostly non-overlapping filters covering 401nm to the sensitivity limit of silicon CCD cameras near 1100nm. Ion Gun Assisted Deposition coating technology on the double-sided polished substrate delivers durability and consistent accuracy to achieve the fine tolerances used within our filter manufacture. Antlia Sloan filters have almost total suppression of optical density (OD)5 ， the result is that our photometric sloan filters minimize the already small leakage and create a superior contrast.

Application and Performance:

Additional separation was included between the g' and r' filters to better suppress atmospheric sky glow at the 558nm line Light pollution at the mercury line at 546nm is effectively suppressed Wider transmission bandwidths allow fainter objects to be measured in a shorter time Antlia Sloan griz' filter set is suitable from f/15 to f/1.8 aperture range SDSS (griz’) photometric filters have transmission characteristics that meet SLOAN-specifications Peak transmission guaranteed > 98%（g’＞95%）

Technical Data: 

Available Sizes：

• Unmounted：Dia 50mm (3mm thickness)

Not Recommended:

• Solar Observing and imaging
• Visual observation
• IMPORTANT! DO NOT LOOK AT THE SUN WITH ANTLIA FILTERS.
  Serious eye damage will result if you fail to observe the warning.