Some of the photos I take, to get the subject large enough in the frame I have to use electronic zoom. I don’t have money for a nice zoom lens. I tried using an adapter for one of Dad’s zoom lenses but it sometimes gives me issues. So I use a 4x zoom - which basically cuts off 3/4 of my sensor then expands the picture to full size (I guess by some sort of averaging math to create the discarded pixels)
Is there anything I can do in post to get some of that resolution back - even if it made up. I am a Linux user, so a workflow in GIMP would be great, or any other Free/Libre software you might suggest?
That is all great info - about how cell phone cameras have better goodies these days.
I have a Canon EOS R50 with the kit lens (RF-S18-45mm F4.5-6.3 IS STM) I also inherited my dad’s Canon Digital Rebel with whatever lenses he had.