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Hydrogen alpha imaging with a high megapixel color sensor vs a dedicated monochrome camera?
I have a Sony Alpha7R Mk2 DSLR which produces 42 Mpix images. Given that only one in 4 pixels is going to see anything in a Ha image, that cuts my resolution by a factor of 4 resulting in effectively a 10 Mpix image. The highest resolution I see on the monochrome cameras is about 5 Mpix. Am I better off using 1/4 of the pixels of a Bayer filtered sensor that has 42 Mpix or does a lower pixel count monochrome camera still have other advantages?
Also, the Sony DSLR has 14-bit A/D and the monochromes I have seen are 8-bit. That's a lot more dynamic range for the color imager, it would seem.
If you feel that the monochrome would be the better choice, can you recommend a model or two for me to look at?
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