G-Star EX vs DMK

[iceman]

Hi all.

Looking for some input in terms of a pros n cons discussion about the G-Star EX (http://www.myastroshop.com.au/guides/gstar.htm) versus the DMK21AF04 (http://www.1394imaging.com/en/products/cameras/firewire_mono/dmk21af04/overview/) firewire webcam.

Steve Massey has written a very good and comprehensive guide on the G-Star (in the link above), and you get the full kit (including RGB filters and carry case) for AU$795. The DMK costs about that (US$490) for the monochrome camera alone.

For the G-Star you'd need a video capture card of some sort, and for the DMK you'd need a firewire port.

In terms of sensitivity, framerate, resolution, pixel/chip/image size, which is better?

Other thoughts?

Thanks

[iceman]

Here are a couple of specs to compare:

G-Star EX
- Image Sensor: 1/2 inch Sony ExView HAD CCD (795(H) x 596(V) pixels)
- Sensor Pixels 8.6um(H) x (8.3um(V)
- Resolution: Hi-res 600TVL (better than SVHS)
- Capture Size: 768 x 576 pixels (max frame capture size - depends on video capture card used)
- Sensitivity: 0.0002 LUX

DMK21AF04
- Sensor specification ICX098BL [321.55 KB, PDF]
- Sensitivity 0.5 lx at 1/30s, gain 20 dB
- Format 1/4 "
- Resolution H: 640, V: 480
- Pixel size H: 5.6 µm, V: 5.6 µm
- Shutter 1/10000 to 30 s


Does the bigger pixel size of the G-Star mean a smaller image scale?