Like anyone afflicted with the disease of astro imaging, that next upgrade to [fill-in-the-blank] is always in the works. As of now there are two within possible reach for me--a 6 inch imaging newt, and a more capable camera than my ASI 224. Although the 224 is a great performer for the money.
So I am pouring over the specs for various cameras, debating how much camera I can afford that would work well with both my 72EDII and a scope in the 6 inch range. I have plugged the values for numerous cameras into the sampling calculator, and it looks like a pixel size in the 3-4 range is theoretically optimum.
But how much leeway is there for nice sharp, high dynamic range imaging ? .(the kind I hope to to someday) I have seen pics on the internet taken with combinations in which the image is both under and over sampled (usually the former, it seems) that look fantastic.
My mouse cursor keeps hovering around the ASI 178 (to cool or not to cool ? Summer nights are warm here.) Although I'm wondering if its extremely small pixels (2.4 micro-M) might pose a particular downside? Do smaller pixels generally exhibit more noise (thermal or otherwise) ? Is well depth related to pixel size and usable dynamic range ?
Comparing camera specs can cause dizziness !