| Feature |
Model 683s |
Model 683ws(-8) |
|
| CCD Image Sensor |
KAF-8300 |
| Electronic Shutter |
Mechanical, exposure range: 0.03 seconds to 240 minutes |
| Mechanical Shutter |
Yes |
Yes |
| Internal Color Filter Wheel |
No |
ws – 5-Position CFW
ws-8 – 8-position CFW
Holds 1.25″ or opt. 31mm filters |
|
| Camera Body Configuration |
Medium
Enclosure |
|
Full
Enclosure |
|
| Dimensions |
W4.45” x H4.45” x D2.00”
(add 0.225″ for T-Mount) |
5-pos, W4.45” x H4.45” x D2.50”
8-pos, W5.86” x H5.56” x D2.50”
(add 0.225″ for T-Mount) |
| Weight, without Nosepiece |
34 oz. / 950g |
5-pos, 40 oz. / 1130g
8-pos, 51 oz. / 1450g |
Optical Back Focus
(w/o Filters in path) |
0.90″ w/ T-mount adapter
0.68″ w/ C-mount adapter
0.68″ w/ no adapter |
1.40″ w/ T-mount adapter
1.18″ w/ C-mount adapter
1.18″ w/ no adapter |
|
| Thermoelectric CCD Cooling |
Temperature regulation +/- 0.1°C, @ 0°C to -40°C CCD temperature |
In free air,
Fans @ Full Speed |
Typically 45°C below ambient air temperature with 85% cooling power |
| With Opt Liquid Cooling – Fans Off |
Typically 52°C below circulating liquid with 85% cooling power
(adds 0.75″ to camera depth) |
| Cooling Fan Control |
Intelligent, user configurable |
|
| Read Rate |
User Selectable High Quality mode at 800KHz, High Speed mode at 8MHz |
| Camera Gain |
User Selectable High Gain 0.5 e-/ADU (default), Low Gain 1.1 e-/ADU |
| Digital Resolution |
16 bits (both High Quality and High Speed mode) |
| Total System Read Noise |
Typically <8 electrons RMS (CCD specification limited) in High Quality mode
Typically <16 electrons RMS (CCD specification limited) in High Speed mode |
| Pixel Dark Current |
<0.1 electron per second at 0°C |
| Full Image Read and Download Time |
Typically <12 second (host computer dependent) in High Quality Mode (800KHz)
Typically ~1 second (host computer dependent) in High Speed Mode (8MHz)
Image download times will be reduced with binning and/or subframe (ROI) |
| Binning Modes |
Symmetrical and Asymmetrical binning up to 9 pixels horizonally or vertically |
|
| Status and Notification |
User configurable multi-color LED status indicator and multifunction
audible beeper. Over-temperature and high/low voltage alarms. |
| Power Consumption |
12v, 2A (24 watts) at max cooling, max fans and filter moving
(25 AC watts max with included 90-240V AC power supply) |
| Operating Environment |
Temperature: -20°C to 30°C, Humidity: 10% to 90% non-condensing |
| Computer Connectivity |
USB 2.0 High Speed (USB 1.1 compatible) |
| Other Ports |
Optically isolated 4 channel control port for telescope guiding
or input/output shutter trigger (See API Reference Manual for details) |
|
| T Mounting Adapter |
Standard – T-Thread, 42mm x .75mm pitch |
C Mounting Adapter
(1″ x 32TPI)
(Not recommeded for 540i) |
Optional, C-Mount (Type II) lens focus compatible
(17.5mm backfocus) |
Optional, for non-lens adapters and accessories
(standard C-Mount lens does not reach focus at infinity) |
| Nosepiece |
Standard, T-Adapter to 2″ nosepiece
Optional, T-Adapter to 1.25″ nosepiece |
