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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.

Astronomy is our job

Observatory Telescopes

Big prime focus telescopes for private or public observatories including installation and full service.

Robotic / Remote

Robotic instruments for automatic imaging or telescopes for remote observation.

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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Kepler KL4040 FI

Absolute Quantum Efficiency KL4040

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The Kepler Series is a giant step forward in throughput, providing faster digitization, higher speed interfaces, and up to 35 channel readout. Sensors currently supported include front and back illuminated sCMOS. Future developments will include interline transfer CCDs and EMCCDs.

USB3.0 (3 Gbps)
Optional QSFP high speed fiber interface
Optional Electromechanical Shutter for Remote Acquisition of Calibration Frames
Choice of Windows - View Transmissivity Curves
Air Cooling or Liquid Cooling (LC connectors sold separately)
Deep Cooling (up to 45C below ambient)
Optional Anti-Dew Technology (ADT)
LDR and HDR modes
Small Footprint (as small as 10.2 x 10.2 x 10.7 cm)
Reaches operating temperatures in 10 minutes
Overview KL camera series

The KL4040 FI scientific CMOS camera has the same imaging area as the KAF-16803 CCD, but with a fraction of the noise even at multiple frames per second. Kepler cooled sCMOS cameras provide ultra-high sensitivity, ultra-low noise, and high frame rates, all at game-changing price to performance ratio.

Sensor Type	Front Illuminated CMOS
Sensor	GPixel GSense4040
Shutter Type	Rolling; Rolling with Global Reset
Active Pixels	4096 x 4096
Pixel Size (microns)	9 x 9 µm
Imaging Area (Diagonal)	36.8 X 36.8 mm (52 mm)
Full Well Capacity	70000 electrons
Typical Readout Noise	3.7 e-
Dynamic Range	85.2 dB
Frame Rate	23 fps (QSFP V2)
Cooling Method	Air and Liquid (see Note 1)
Max. Cooling (Air)	40°C below ambient
Temperature Stability	0.1°C
Dark Current (typical)	0.4 eps at -10C
Interface	USB 3.0 (Optional QSFP; see Note 2)
Data Bit Depth	16 bit (see Note 3)
Optional shutter	65mm
Optional Mounts	Medium Format Recommended
Subarray Readout	Standard
External Trigger In/Out	Standard
SDK / Software	Kepler SDK / FLI Pilot
Weight	4 lbs (1.8 kg)
Note 1: Liquid circulation connectors sold separately. Note 2: QSFP = Quad Small Form factor Pluggable: high speed fiber optic interface Note 3: 16 bit data merged from two 12 bit conversions

More Products

Front Illuminated Cameras

KL400 FI 2K x 2K, 11µ

KL6060 FI 6K x 6K, 10µ

Back Illuminated Cameras

kl400 KL4040 250 with shatter KL6060 250

KL400 BI 2K x 2K, 11µ

KL4040 BI 4K x 4K 9µ

KL6060 BI 6K x 6K 10µ

DC23084 4K x 4K 15µ

Melotte15 1

Melotte 15 courtesy Tolga Gumusayak
FLI Kepler KL4040 camera

Our products are characterised by quality.

Remote telescope in use
Our project near Munich. 600mm RC tube on a DDM100 mount. As observation platform a dome from Astroshell with 3m diameter. The complete system is designed as a remote telescope.
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SBIG CCD/CMOS Cameras
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. The Aluma AC4040 is available in Front Illuminated (FSI) and ultra-sensitive Back-Illuminated (BSI) versions. BSI versions are offered with VIS-NIR and UV-VIS optical coating options.
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Shelyak Spectrometer
The UVEX is the most versatile instrument in the range. Achromatic by design, it can explore far into the ultraviolet and infrared – at the very limits of what today’s cameras can achieve. The interchangeable gratings (in option) allow different resolutions. Combined with its motorization module, it can be operated remotely. The motorization integrates the control of the calibration module (equivalent to the SPOX module). So it’s easy to do your dark, flats and calibration images remotely. The motorized UVEX is the ultimate version of the UVEX, allowing remote operation. You can remotely control the central wavelength (grating angle) and adjust the spectroscope’s focus.
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Astroshell Domes
The Clamshell dome is the preferred observatory dome for LASER COMMUNICATION and BIG-APERTURE telescopes. It is not necessary to synchronize the telescope with the dome. Both "shutters" can be moved and positioned independently to allow wind shading of the optical group. All of our domes are equipped with rugged belt drive systems powered by high performance DC or AC motors and feature industrial grade gears. If you need fast dome opening, we offer a special fast opening shutter drive system. Built up individually or in combined with the SRQ-200 DIMM station, our clamshell dome is the way to go for successful astronomy! CLAMSHELL DOMES provide an unparalleled 360/180 degree field of view for an absolutely breathtaking nighttime experience. When this observatory dome opens, you are truly among the stars!
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ASA Direct Drive Technology
New design based on 15 years of experience with Direct Drive mounts. Ready for the most demanding applications in pointing and tracking accuracy, like laser comunication, satellite tracking and general astronomical research.
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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.

Our Team

Markus Ludes CEO
Markus Ludes CEO has been managing APM Telescopes for more than 30 years.
Dr. (Ing.) Diethard Jakobs, Manager and Controller
Dr. (Ing.) Diethard Jakobs Managing Director and Controller at APM Telescopes. He is responsible for planning and execution of major projects.
Angelika Jakobs
Angelika Katharina Jakobs International Relations
Daniela Lambert
Daniela Lambert Assistant to the management
Michael Conrad
Michael Conrad Distribution
Andreas Pietsch
Product Manager Andreas Pietsch great passion is astronomy. At APM Telescopes, he mainly takes care of astrophotography. He has a lot of experience in this field. He also knows a lot about building and operating large telescopes.