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CCD cameras
Low-light CCD cameras for astronomy and microscopy
Gx Camera Ethernet Adapter — Standard, Mini and Micro versions
 Gx Camera Ethernet Adapter allows connection of Gx series cameras (models G0 to G4) to the control computer using Ethernet interface and TCP/IP protocol stack (this means over Local or Wide Area Networks). Single Gx Camera Ethernet Adapter contains four USB 2.0 ports and allows connection of up to four Gx cameras at the same time (regardless of the specific series, cameras can be freely combined). (more...)
G2-0402, G2-1600, G2-3200, G2-8300, G2-2000 and G2-4000 CCD Cameras
 G2 series of small format CCD cameras uses high sensitive, low noise OnSemi Full-Frame and Interline-Transfer CCD detectors. While high-speed USB 2.0 interface allows plug-and-play operation and ensures download time within a few seconds, optional Ethernet interface provides camera connection to practically unlimited distance. Advanced analog electronics ensures uniform frames without artifacts and very low read noise. Efficient, regulated two-stage Peltier cooling keeps detectors frozen to minimize dark current. Compact and robust camera head integrates all electronics, mechanical shutter and optional internal filter wheel. Various threaded and bayonet adapters enable attaching of the camera to almost any optical system and numerous accessories like autoguiding cameras, off-axis guider adapters, external filter wheel etc. allow tailoring of the imaging system to almost every application. (more...)
Off-Axis Guider adapters for G3 and G4 CCD cameras
 Despite the fact that the G2 and G3 cameras share the same adapter mounting interface, Off-Axis guiders for G2 cameras with either M42 or M48 variant of mounting thread cannot be used with G3 cameras. The mirror reflecting light to guiding camera inside the G2 OAG is positioned too close to the optical axis that it partially shadows larger CCD detectors of G3 cameras. And G4 cameras use even greater detectors and their adapter mounting interface is also larger. Off-Axis guiders for G3 and G4 cameras have to be designed from the ground up to place the mirror feeding the guiding camera with light as close to the optical axis as possible on the one side, but not to cause vignetting (shield the main CCD detector) on the other side. (more...)
External filter wheels for Gx CCD cameras
 The ability to capture individual exposures through various filters is one of the key features of the cooled CCD cameras, regardless if being used for scientific research or for astronomical photography. This is why the Gx CCD cameras were designed to include the filter wheel inside the camera head and to integrate filter wheel control into camera control from the beginning. When more than 5 or 6 filters are necessary or the filter wheel has to be used with G4 camera, the filter wheel is too large to be placed inside the camera head. External filter wheel is then the only option. (more...)
Off-Axis Guider adapter for G2 CCD cameras
 Guiding of telescope mount is a necessity for really long exposures even if a high-quality mount is used and mass produced “cheap” mounts require guiding even for short exposures. Guiding camera repeatedly images a selected star or a star pattern. Computer calculates differences in measured position and performs slight corrections to the mount to compensate for mechanical irregularities and other factors, e.g. refraction. Guiding camera can be attached to separate guiding telescope or off-axis guider can be used to feed the guiding camera with the light gathered by the main telescope, used for imaging. If the guider camera uses the same optics as the main imaging camera, it is crucially important to divert the light for it before the light reaches the filters. Numerous filter has so low light transmission (e.g. photometric B or UV filters, narrow-band filters etc.), that they effectively disable guiding with the exception of a very few very bright stars. (more...)
Large format G4-9000 and G4-16000 cooled CCD cameras
 Cooled CCD cameras of G4 series contain detectors with 36 × 36 mm area, which is 50% more than photographic “full-frame” format. G4 camera dimensions are the same like dimensions of G3 series, with the exception of camera head thickness — G4 cameras are somewhat slimmer, because they do not contain internal filter wheel. Also camera handling, software control, power supply and connection to the host PC using fast USB 2.0 interface is the same like in the case of G3 cameras. Filter wheel for 50 × 50 mm square filters (round filters of 50 mm diameter cause vignetting on such large CCD chips) cannot be placed inside the camera head due to limited space. But it is possible to connect external filter wheel for 5 large filters to the G4 camera, the camera head already contains connector for external filter wheel control. (more...)
G3-11000, G3-16200 and G3-1000 CCD Cameras
 Large format CCD cameras of the G3 series are designed for up to 24x36 mm (photographic “full-frame” format) CCD detectors. G3 series inherits from G2 cameras — camera handling, software control, power supply and connection to the host PC using fast USB interface is the same. Design of both series is very similar and although G3 camera head is naturally bigger, it contains all mechanics and electronics and offers only power and USB connectors. As like in the case of G2 cameras, G3 head contains mechanical shutter and integrated filter wheel for five 2-inch filters. Read noise is also limited only by CCD itself so G3 series surpasses competing products. Precisely regulated cooling achieves detector temperatures 45°C below ambient temperature even if the G3 CCDs are bigger and thermal leakage is naturally higher. (more...)
G0 and G1series of imaging/guiding cameras
 The G0 and G1 series of CCD cameras is based on Sony ICX CCD detectors. Cameras are powered from the USB so they are connected to the PC with only single cable. Standard “Autoguider” port allows the camera to directly control telescope mount. G0 cameras are similar to ordinary 1.25" eyepiece. G1 camera head is somewhat bigger, because it contains cooling fan, which significantly reduces CCD dark current. G1 cameras are also equipped with standard CS-thread adapter, so they are compatible with various CCTV lenses, microscopes and other devices. (more...)
G2 CCD cameras articles
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