A common system of filters is available for use with the CCD cameras at Moore, Mt. Kent and Mt. Lemmon observatories. With some exceptions, noted below, all filters are mounted in wheels that may be changed on request.
There is a set of Sloan filters for each of the ULMT, MORC24, CDK20N, CDK20S, and CDK700 telescopes. Each set excepton ULMT is in a wheel with 6 openings assigned serially.
Currently the ULMT wheel has 10 openings including the Sloan filters, color imaging filters, H-alpha and [OIII]. That wheel is scheduled to be replaced with a 7-filter wheel that has Sloan, plus others to be determined.
Transformation coefficients are discussed on the Sloan Digital Sky Survey Sloan Digital Sky Survey website
There is one UBVRI filter wheel at each observatory to be used as needed an any telescope with an IFW3 filter wheel.
There is one color imaging wheel at each site.
There are three narrowband filter sets available. The wheels at Mt. Kent for CDK20S and CDK700 use Astrodon filters:
A wheel for the CDK20N is
A wheel for use at the RC24 is
The SBIG STL6303 cameras take 50 mm diameter filters in a 5-filter wheel. Moore and Mt. Kent observatories have the standard UBVRI set installed in the STL cameras:
Additionally, at Mt. Kent there is a set of color imaging RGBC filters in a spare wheel. STL cameras require disassembly to change wheels.
The STL camera at Mt. Kent has been retired from Shared Skies and may be used on the APTA telescope there. The STL camera at Moore Observatory is in use on the FSQ roll roof telescope.