Any chance that you or a guest writer could do a top ~10 shown on your blog about fpv camera latency picture quality etc. With cameras 600tvl and up to see if there are other options out there.

For eg. I'd like to get the wide screen camera for my dom v3s but don't know what it's latency is.

Not a guide but an opinion.
Anything more than 40ms is "useless" not recommended if its for drone racing. Stick with the HS1177 fpv camera. But if you dont care and you still need an fpv camera with better quality there is the Aomway or FOXEER 1200TVL relevant ones. You will also get latency from your vTx to Rx and also video processing time in larger TVL cameras.