HD footage is only around 2 megapixels in resolution. It is not anywhere near sufficient to pull a finger print. To pull a finger print, you would need something more in the 20+ megapixel range, focused on just the hand, and still would need the right angle for the fingerprint to be particularly visible, so in answer to your primary question, no, photography isn't a major concern for capturing fingerprints.
That said, it is also not that hard to get someone's fingerprint if you really want to. There isn't anyone following the President around wiping down every surface he touches, so find someplace he'll be in public and give him a campaign poster to sign or something and chances are, you can obtain his fingerprint.
Even with finger prints being obtainable however, it shouldn't be the only factor and it is still an additional barrier. Extra steps mean extra chances to be detected. Extra chances to be detected means higher security. Additionally, systems for detecting if someone is alive and genuine (such as guards or some technical approaches) can attempt to verify that someone actually is using THEIR fingerprint and not a fake.
Fingerprints should not be relied on as a sole measure of security and have never been considered a viable replacement for more secure factors. They are just an additional factor which is convenient and doesn't harm the security of a system when it is added as an additional step.