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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.

UVEX Spectrograph

Uvex Spectrograph

The UVEX is a “crossed” Czerny-Turner spectroscope optimized for wavelengths from near UV (<350nm) to near IR (1µm).

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Diffraction Limited CCD Kameras

Aluma CCD 695 a

Our most popular camera, the SBIG Aluma AC4040 is a large format Scientific CMOS camera, featuring a 16.8 megapixel sensor with 9 micron pixels. The camera is compatible with the StarChaser SC-4 Guider and optional AO-X Adaptive Optics accessories.

Diffraction Limited Overview

Product enquiries

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Please make your enquiries about the products you require here. We will contact you as soon as possible with a customised quote.

SBIG Filterwheels

Still too few filter slots for you? The highlight of the AFW: With a special dual filter wheel adapter, you can couple 2 (identical) filter wheels. This provides a total of 22 free filter slots for the AWF-12 and 18 for the AFW-10.

SBIG AFW Filter Wheels

SBIG Adapters

SBIG FW8S-Aluma Filter Wheel

FW8S-Aluma is the 8-position filter wheel for Aluma CCD Series cameras. It includes a 40-12053-00 adapter plate (STL style t fw8s hreads, 2.156″ x 24) and a 40-12121-00 2″ nosepiece adapter.

Features

The carousel holds eight 36mm filters and inserts are available for 1.25″ filters. The 36 mm filters provide unvignetted imaging for the largest Aluma sensors.

Aluma wheels include a positive centering mechanism that precisely centers each filter in the exact same position every time. This single-pixel accuracy completely eliminates ghost images of dust spots and other artifacts after flat-fielding.

The left-hand image below shows a dust spot on the filters. A flat-field calibration frame was taken, then the filter wheel was rotated several times before taking a second picture, which was flat-field calibrated, at right. No evidence of the dust spot is visible. This high precision results in the highest quality images and excellent photometric accuracy.

bsp1 fw8s1 fw8s2

Additional Information

	Filter Size: 36mm / 1.25"
	Weihht: 1.8 lbs
	OS Compatibility: Windows 32 and 64 bit OS, Mac, Linux

accfw8

Filter Insert 36mm to 1.25" Adapters

36 mm Round Optical Filters

1.25″ Round Mounted Optical Filters

Adapter Plates for Compact Cameras

User’s Manual

The Aluma system manual includes instructions for all Aluma cameras and filter wheels.

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Backfocus Table

Backfocus configuration table

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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.