Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

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?

Update:

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?

There are no answers yet.
Be the first to answer this question.