If it's been awhile (a few hours, preferably over four* ... I'm not a bubble expert and not sure how long they take to clear/dissolve*) or overnight since the last regular scuba dive, free diving shouldn't be a problem.
Otherwise, within at least four hours* or so of a regular dive, I think I'd stay at or very close to the surface. You may be able to get good photos from near the surface anyway (perhaps by holding your camera as low as you can reach and just pointing and shooting ... digital, I presume, so just fire away and at least a few shots should turn out).
*The differences between quick bounce dives (whether free diving or on scuba) soon after a regular scuba dive and repeated regular dives (which are commonly done with relatively short surface intervals less than an hour) is that a bounce dive only compresses the bubbles, doesn't dissolve them, and bounce dives (particularly with free diving) may include rapid ascents. Subsequent regular dives, on the other hand, redissolve the bubbles and subsequently deal with the dissolved gases via normal, proper ascents and safety stops. George Irvine recommends four hours before doing bounce dives. For further info., including be sure to read the last couple of sentences, see:
DSAO -- with an eye to details (and priorities: health is more important than photos)
Last edited by Lepomis; 10-21-2013 at 07:14 PM.
I'm just here between dives unloading nitrogen, refilling tanks, and talking with buddies.