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Table of Contents
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Summary of Contents for Moravian Instruments G0
- Page 1 G0 and G1 CCD Camera User's Guide...
- Page 2 Moravian Instruments reserves the right to change any information contained herein without notice. G0 and G1 CCD devices are not authorized for and should not be used within Life Support Systems without the specific written consent of the Moravian Instruments. Product warranty is limited to repair or replacement of defective components and does not cover injury or property or other consequential damages.
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Page 3: Table Of Contents
Table of Contents Introduction....................4 Camera Technical Specifications.............7 CCD Chip....................9 Model G0-0300 and G1-0300............9 Model G0-0300C and G1-0300C..........9 Model G1-0301................10 Model G1-0301C.................10 Model G0-0800 and G1-0800.............10 Model G0-0800C and G1-0800C..........11 Model G0-2000 and G1-2000.............11 Model G0-2000C and G1-2000C..........11 Model G1-1200................11 Model G1-1200C.................12 Model G1-1400................12... -
Page 4: Introduction
USB powered operation etc.) makes using of these cameras for guiding of telescope mount very simple. Using of G0 or G1 CCD for guiding is described later in this manual. Simplicity, compactness and quick image download took precedence to some other features, so G0 and G1 series of CCD cameras lack mechanical shutter and filter wheel. - Page 5 4. Alternatively it is possible to use the Gx Camera Ethernet Adapter. This device can connect up to four Gx cameras of any type (not only G0 and G1, but also G2, G3 and G4) and offers 1 Gbps and 10/100 Mbps Ethernet interface for direct connection to the host...
- Page 6 WiFi bridge or other networking device to the communication path. The G0 or G1 CCD camera must be connected to some optical system (e.g. the telescope) to capture images. G1 cameras are equipped with CS-thread adapter, which allows usage of CCTV lens with C/CS thread with the camera (it is necessary to use 5 mm distance ring for C-mount lenses).
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Page 7: Camera Technical Specifications
Camera Technical Specifications The G0 series of CCD cameras comprises of the following models: Model G0-0300 G0-0300C G0-0800 G0-0800C CCD chip ICX424AL ICX424AQ ICX204AL ICX204AK 656×494 656×494 1032×778 1032×778 Resolution 7.4×7.4 µm 7.4×7.4 µm 4.65×4.65 µm 4.65×4.65 µm Pixel size... - Page 8 The G1 series of CCD cameras comprises of the following models: Model G1-0300 G1-0300C G1-0301 G1-0301C CCD chip ICX424AL ICX424AQ ICX414AL ICX414AQ 656×494 656×494 656×494 656×494 Resolution 7.4×7.4 µm 7.4×7.4 µm 9.9×9.9 µm 9.9×9.9 µm Pixel size Read mode Progressive Progressive Progressive Progressive...
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Page 9: Ccd Chip
G1 cameras also provide very fas readout – pixel digitization speed ● is 8 Mpx/s in fast read mode. Model G0-0300 and G1-0300 G0/G1-0300 model uses progressive-scan VGA (640 ×480 pixels) Sony ICX424AL CCD chip. 656 × 494 pixels Resolution 7.4 ×... -
Page 10: Model G1-0301
7.4 × 7.4 µm Pixel size 4.9 × 3.7 mm Imaging area Color mask RGBG (Bayer mask) Model G1-0301 G0/G1-0300 model uses progressive-scan VGA (640 ×480 pixels) Sony ICX424AL CCD chip. 656 × 494 pixels Resolution 9.9×9.9 µm Pixel size Imaging area 6.5×4.9 mm... -
Page 11: Model G0-0800C And G1-0800C
Model G0-0800C and G1-0800C G0/G1-0800C uses progressive-scan XGA (1024×768 pixels) Sony Super HAD ICX204AK chip with Red, Green and Blue color mask (Bayer mask) applied directly on the CCD, which allows capturing of color images by single exposure. 1032 × 778 pixels Resolution 4.65 ×... -
Page 12: Model G1-1200C
efficiency of this CCD chip very high, comparable to ICX285 based models. 1296 × 966 pixels Resolution 3.75 × 3.75 µm Pixel size 4.9 × 3.6 mm Imaging area Color mask Not present Model G1-1200C ×960 G1-1200C model uses progressive-scan HD (1280 pixels) Sony ICX445AQA chip with Red, Green and Blue color mask (Bayer mask) applied directly on the CCD, which allows capturing of color images by... -
Page 13: Camera Electronics
applied directly on the CCD, which allows capturing of color images by single exposure. The ICX285 detector is manufactured using so-called ExView HAD technology, which enhances its sensitivity especially in read and near infra-red portion of the spectrum. 1392 × 1040 pixels Resolution 6.45 ×... -
Page 14: Ccd Chip Cooling
CCD parameters (e.g. output node sensitivity), which are not published by Sony. CCD Chip Cooling The G0 and G1 series of CCD cameras does not use active cooling with Peltier TEC modules, so the CCD cannot be cooled below ambient temperature. -
Page 15: Power Supply
Power Supply G0 and G1 cameras are powered from the USB cable. No external power supply is necessary. The current limit for single USB device is 500 mA from 5 V supply. The current required by G1 CCD cameras varies depending on the camera operation mode. -
Page 16: G0 Camera Mechanical Specifications
G0 Camera Mechanical Specifications G0 camera head has just 40 mm diameter (approx. 1.6 inch) and 85 mm length (approx. 3.3 inch), including the 18 mm long 1.25” nose in the front part of the camera. All connectors (USB and autoguider) are placed on the rear side of the camera. -
Page 17: G1 Camera Mechanical Specifications
Illustration 2: G0 camera dimensions The G0 cameras use Interline Transfer CCDs allowing electronic exposure control, so they do not contain mechanical shutter. But it is necessary to cover the telescope manually to take dark or bias frame. Internal mechanical shutter No Shortest exposure time 0.000125 s... - Page 18 Both C and CS standards use the same thread specification (C-thread with 1 inch diameter, 32 threads per inch). The difference between them is in the back focal distance – while the standard C-thread back focal distance is 17.5 mm, the CS back focal distance is 12.5 mm. Both variants are available for G1 CCD cameras.
- Page 19 Illustration 4: G1 camera dimensions...
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Page 20: Guiding
Calculated corrections can be sent back to mount using PC-to-mount link, but more accurate guiding can be achieved using so called “Autoguider” port. It is enough to connect the G0 or G1 camera and the mount using 6- wire cable and guide the mount through the camera. - Page 21 Illustration 5: Bottom side of the G0 and G1 camera heads with USB and Autoguider connectors The Autoguider port follows the de-facto standard introduced by SBIG ST- 4 autoguider. The pins have the following functions: 1. R.A. + (Right) 2. Dec + (Up) 3.
- Page 22 The maximum sinking current of each pin of the G0 or G1 camera is 100 mA. If the mount does not treat the autoguider port as logical input only, but switches the guiding motors directly by these signals, a relay box must be inserted between the camera and the mount.
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Page 23: Camera Maintenance
Camera Maintenance The G0 and G1 cameras require no special maintenance. However, it is a precision optical and mechanical instrument so it should be handled with care. Camera should be protected from moisture and dust. Always cover the telescope adapter when the camera is removed from the telescope or put the whole camera into protective plastic bag.