Aluma Features include:
- High-performance CCD imaging sensors
- Light weight, compact design
- Centered optical axis for optimum instrument balance
- Ultra reliable even-illumination (photometric) mechanical shutter
- USB 2.0 interface
- Full frame image buffering eliminates readout artifacts
- 2-Stage TE cooling with typical -50C from ambient
- Twin variable speed fans withย SmartCoolingTMย technology
- High accuracy temperature regulation
- Built-in RBI Pre-flash (full frame front-illuminated sensors only)
- External TTL trigger inputs and output
- Included 110V / 220V power supply and optional 12VDC operation
- User-rechargeable desiccant plug
- Built-in 1/4-20 tripod mount
- Support for high precision 8-position filter wheels
- Bulletproof firmware update capability โ virtually impossible to โbrickโ
Software Included
All Aluma CCD models ship with MaxIm LT for Windows โ a special version ofย MaxIm DLย specific to our cameras. Aluma also supports third-party applications through ASCOM and native drivers.
Compact and Lightweight Design
Aluma cameras measure just 4.25โณ x 4.25โณ x 4.0โณ with handles (3.5โณ without handles) and weigh just 2.2 lbs (1 kg).
Even-Illumination Shutter
All Aluma cameras include a mechanical shutter, which is used for both dark/bias calibration frames and for shuttering exposures on full frame sensors. Rather than using a complex iris shutter, which are prone to failure, the Aluma uses a twin vane shutter and direct drive motor for high repeatability, reliability, and extremely long life.ย The shutter is designed to be โeven illuminationโ for the best accuracy in photometric measurements.
The left image shows a flat field image taken with a camera using an iris type shutter. The right image is a flat field image taken under the same conditions using our even-illumination shutter.
High Performance KAF-8300 Image Sensor
The Aluma 8300 uses the popular 8 megapixel ON Semi (formerly Kodak) KAF-8300-AXC sensor. The sensor has 3448 x 2574 pixels at 5.4 microns square, for a 17.96 mm x 13.52 mm chip size.
This is a high sensitivity full frame CCD sensor with low dark current and low read noise.ย Combining this high performance sensor with Alumaโs high cooling performance and low readout noise results in exceptionally clean images.
This sensor includes microlens technology that concentrates light on the sensitive area of each pixel.ย The CCDโs sensitivity peaks in the center of the visible spectrum at 550 nm, and maintains high sensitivity throughout the visible spectrum.
KAF-8300 Quantum Efficiency
SmartCoolingTM
All Aluma cameras include our powerful new SmartCooling technology. The two-stage cooler, powerful fans, and advanced heat sink designed using thermal flow simulation combine to produce typical cooling delta from ambient of -50C.ย This is quite a feat considering the Alumaโs very compact and lightweight package.
SmartCooling automatically adjusts the fan speed to optimize cooler performance and power consumption.ย The cameraโs firmware is constantly monitoring the sensor and heat sink temperatures, as well as controlling the cooler power.ย When full cooling power is needed โ when ramping down or running near full power โ the fans ramp up to their maximum speed, resulting in the strongest possible cooling.ย When less cooling power is needed the fans automatically slow to reduce noise levels and power consumption. SmartCooling also prevents any possibility of overheating by backing off power if the heat sink gets too hot โ so you donโt need to worry if your camera is baking in a hot observatory during the day.
Advanced Software Included
All SBIG cameras come with our MaxIm LT software โ a $249 value!ย MaxIm LT is a special version of our venerable MaxIm DL software that provides complete control of your camera, filter wheel, and autoguider, plus advanced image processing capabilities.ย If you wish you can upgrade to MaxIm DL Pro to get complete observatory integration and even more processing and analysis capabilities.
Included Accessories
Each Aluma camera package includes:
- MaxIm LT software โ please useย this formย to request your license
- Deluxe carrying case
- Universal power supply (110V / 220V, 50-60 Hz)
- 2โณ Nosepiece adapter
- USB flash drive containing software, drivers, and documentation
- 15 foot (4.5 m) USB cable
- Tracking interface cable
Optional Filter Wheel
The optionalย AFW-8-36Rย ย 8-position filter wheel provides a fast, quiet, and low-cost option.ย It holds standard 36 mm filters, andย insertsย are available for 1-1/4โณ filters, which are suitable for smaller format CCD sensors.
The optionalย AFW-16-36Rย filter wheel, attached viaย AFW to Small Format Camera Adapter, provides for a full sixteen 36 mm filters.ย Please note that the AFW wheels work with large format accessories, and do not accommodate screw-in 1-1/4โณ filters due to their height.