There are several important features of the large format SXVF cameras that make them better than DSLRs for astronomy:

1. The cooling of the CCD is important and makes low noise exposures much more practical.
2. The slower optimised readout of the SXVF CCD gives less readout noise.
3. The images are downloaded as raw 16 bit data, so the full dynamic range and sensitivity are maintained.
4. The SXVF does not incorporate an infrared blocking filter and so the full near IR and H-alpha performance is available.
5. The SXVF is compatible with the SXV guide camera and AO unit.
6. The 'T' thread mount with adjustable CCD tip/tilt permits the camera to be accurately aligned with the optics.
7. The cylindrical profile makes it compatible with prime focus optical systems.

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