Moravian G4-9000, G4-16000 CCD camera

Cooled CCD cameras of G4 series contain detectors with 36 × 36 mm area, which is 50% more than photographic “full-frame” format.

Product variants

More about the product

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.

G4 cameras contain Full-Frame CCD chips Kodak KAF with 36 × 36 mm detector area. These detectors are equipped with so-called “anti-blooming gate” (ABG), which drains the over-abundant charge from saturated pixels. ABG ensures the round images of bright stars, without disruptive blooming spikes. On the other side, compromising of the CCD linearity by ABG is only negligible. G4 cameras can be used for astrometric and photometric applications as well as for astrophotography.

No matter if your target is reliable scientific data or beautiful images of deep-sky objects, G4 CCD cameras are able to provide both.

G4 series contains the following camera models:

Model Color mask CCD chip Resolution Pixel size Image area Download time
G4-9000 no KAF-09000 3072 × 3072 12 × 12 μm 36.9 × 36.9 mm ~ 12.5 s
G4-16000 no KAF-16803 4096 × 4096 9 × 9 μm 36.9 × 36.9 mm ~ 22 s

Model G4-9000

G4-9000 model uses 9 MPx Kodak KAF-09000 CCD.

Resolution 3072 (H) × 3072 (V) pixels
Pixel size 12 μm (H) × 12 μm (V)
Image area 36.9 mm (H) × 36.9 mm (V)
Full well capacity ~110,000 e-
Dark current 5 e-/s/pixel at 25 °C
Dark signal doubling temperature 7 °C
Gain 1.5 e-/ADU (1 × 1 binning)
  1.7 e-/ADU (other binnings)
System read noise 7 e- RMS (LN read)
  8 e- RMS (standard read)
Full frame download 14.7 s (LN read)
  12.3 s (standard read)

Model G4-16000

G4-16000 uses 16 MPx Kodak KAF-16803 CCD.

Resolution 4096 (H) × 4096 (V) pixels
Pixel size 9 μm (H) × 9 μm (V)
Image area 36.9 mm (H) × 36.9 mm (V)
Full well capacity ~100,000 e-
Dark current 3 e-/s/pixel at 25 °C
Dark signal doubling temperature 6.3 °C
Gain 1.6 e-/ADU (all innings)
System read noise 9 e- RMS (KN read)
  10 e- RMS (standard read)
Full frame download 26.2 s (KN read)
  21.8 s (standard read)

 Elektronika:

ADC resolution 16 bits
Sampling method Correlated double sampling
Read modes Standard (STD)
  Low-noise (LN)
Horizontal binning 1 to 4 pixels
Vertical binning 1 to 4 pixels
Sub-frame readout Arbitrary sub-frame
TDI readout yes
Computer interface USB 2.0 High Speed
  USB 1.1 Full Speed compatible

Tápellátás:

Camera head supply 12 V DC
Camera power consumption 14 W without cooling
  50 W with 100% cooling
Adapter input voltage 100-240 V AC/50-60 Hz
Adapter output voltage 12 V DC/5 A
Adapter maximum power 60 W

Mechanikai adatok:

Internal mechanical shutter Yes, blade shutter
Shortest exposure time 200 ms
Longest exposure time Limited by chip saturation only
Internal filter wheel no
Head dimensions 154 mm × 154 mm × 65 mm
Back focal distance 16.5 mm
Weight of camera head 1.6 kg
Weight of camera head + external filter wheel 2.5 kg

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The product comes with 2 years warranty (excluding electric parts)

Astronomical telescopes up to 100 Euros
Astronomical telescopes between 100 and 200 Euros
Microscope offer up to 200 Euros



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