Mono Camera or Colour Camera?
There is a big choice to be made during your astrophotography journey: colour camera or mono camera?
A colour camera uses a sensor with a bayer matrix over it. Light passes through tiny coloured filters and is then read by the sensor. A mono camera has no such filter – the light is read as gray scale. In order to use a mono camera to construct a colour image we have to add filters in front of the sensor ourselves.
Recently I sold my Altair Astro Hypercam 183c colour camera to buy the mono version. Then I bought a filter wheel and a full set of narrowband filters. Since I particularly like the look of narrowband, and whilst it’s possible with a colour camera, a mono camera is more suited to narrowband imaging. I enjoyed the 183 sensor so much that when I saw the mono for sale – I took the plunge.