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APM Professional Telescopes

1m F/8 Ritchey Chrétien with dual Nasmyth Foci, Cape Town (South Africa)

Another large telescope for the South African Astronomical Observatory (SAAO). An 1m F/8 Alt-Az mounted Ritchey Chrétien for robotic use. It has dual Nasmyth Foci. The main telescopes used for research are located at the SAAO observing station (32°22.795’S 20°48,657’E) near Sutherland in the Northern Cape, a 4-hour drive from Cape Town.

ASA Telescopes

ASA600 with DDM200

ASA600 OTA is the perfect fit for the ASA direct drive mounts with absolute encoders. As all ASA telescopes the ASA600 is equipped with quartz glass optics from ASA.

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Chroma Filter

Optical Filters for Astronomy Applications - made in USA

Diffraction Limited Cameras

Sloan ugriz Filterset

Sloan ugriz filter set for imaging based on the Sloan photometric survey.

ugriz tabelle

Sloan u: UV photometric filter in ugriz´ serie
Sloan g: Green photometric filter in ugriz´ series
Sloan r: Red photometric filter in ugriz´ series
Sloan i: NIR photometric filter in ugriz´ series
Sloan z: NIR photometric filter (longer wavelengths) in ugriz´ series

In contrast to the Bessell system, the Sloan system has wider passbands and slightly higher transmission, which makes it more suitable for faint objects such as galaxies. The ugriz´ filters differ slightly in their characteristics from the corresponding griz filters of the Gunn system, as they are specially designed for the 2.5 m Sloan telescope.

sloan ugriz filters

sloan ugriz filters od

APM Professional Telescopes

1m F/8 Ritchey Chrétien with dual Nasmyth Foci, Cape Town (South Africa)

Another large telescope for the South African Astronomical Observatory (SAAO). An 1m F/8 Alt-Az mounted Ritchey Chrétien for robotic use. It has dual Nasmyth Foci. The main telescopes used for research are located at the SAAO observing station (32°22.795’S 20°48,657’E) near Sutherland in the Northern Cape, a 4-hour drive from Cape Town.