918R 918R_v1 k1028

Below is a plot of the transmission of this filter when used at telescopes with differing focal ratios and central obscurations; the KPNO 4m (f/3.1) and the CTIO 4m (f/2.9). At the KPNO 4m f/3.1 the properties of this filter are: CWL=9140A, FWHM=81A, PEAK TRANSMISSION=84.7%.

About the Image

Id:kp1028
Type: Photographic
Release date: February 19, 2021, 8:00 am
Size:792 x 612 px

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