Optec Stromgren "Y" Filter for SSP-5
Optec offers a wide selection of filters for astronomical photometry in standard color systems. These filters are designed for the SSP series of single-channel stellar photometers and are 12.5mm (") in diameter and 7.00mm thick. This filter is a singular 'Y' filter, part of the four color u v b y filter set that Optec produces. This filter can be directly mounted into the 2 position or 5 position automatic filter wheels for the SSP-5.