Hello. I'm very new to solar imaging and have many dumb questions, some of which have already been kindly answered by posters here. I'll keep this brief. I am what I would call an intermediate planetary and lunar imager and processor. I am familiar with capturing (I use SharpCap Pro), stacking (I use Autostakkert), creating mosaics (I use ICE), basic processing (usually limited to resizing, deconvolution, sometimes denoising, color correction, curves & gamma, suplementary sharpening, etc. in Astra Image) for both planetary and lunar. I'm familiar with the taking and use of calibration frames, and thanks to members here I now know how to shoot flats for solar.
My equipment for solar is ill-suited for the task, I know, but it is what I have and I don't really have the budget to produce the kind of spectacular images I see others posting here. But I would like to know where I should set my expectations so that I'll know when there is something amiss and I can improve on vs. when there is just something that is beyond the capability of my equipment. So, without further ado, my equipment for solar is:
1) 1977 orange tube Celestron C90. It is a very old scope and they often seem to get a bad rap, but it is in good condition and seems capable of producing decent images of objects in the sky that are about the angular diameter of the Sun: https://www.cloudyni...6100_558881.png
2) Thousand Oaks solar filter.
3) Should I choose to use it, I have an SCT threaded Crayford dual speed focuser that lets me fine focus without touching the C90's focus ring. It also puts the focal length at the as-advertised 1000mm. I can shoot anywhere from 800 to the advertised 1000mm without it, depending on the exact camera, adapter, and spacer choice. Honestly I have not seen much benefit from fine focusing with the Crayford, however (see below).
3) A few different cameras. The one I am planning on using mostly is an ASI183MC, 15.9mm diagonal 20 Mpxl 19 fps dedicated color astro cam (I understand mono is better for solar, but again, it's what I have).
So the question is not really how do I do this or that, the question is, what exactly should I expect from solar imaging with this equipment in white light? Because what I've seen so far, admittedly using a very, very different camera (Sony a6000 mirrorless, APS-C sized sensor, very low numbers of frames) has not been all that impressive. The only hint of surface detail I have seen so far has been a tiny smudge of an admittedly not-quite-in-focus itty bitty sunspot. Should I expect to be able to resolve convection cells with this scope if I am in focus? Should I be able to see prominences? Because other than some lumpiness around the perimeter I haven't seen anything like that. Are there usually prominences? Or are they intermittent and you have to get lucky to catch them? Do you have to stretch the perimeter like a DSO to see them?