The title about says it all

I could likely get better pictures if I used the flash, but haven't read anything anywhere about how snakes might feel about the flash at close range.

Do they care, do you think? Is it pretty much how humans feel about the flash, i.e., it's kinda annoying, but not harmful.
Does it startle them?

How does your snake respond, if at all, and have you got a link or name of somewhere that has useful information about snake eyes?

Thanks