(photography) best moment to take a picture of a moving subject

always

(photography) camera shutter / window shutter or roll-up door

to let escape, let loose, set free / to miss (an opportunity)

chance (an opportunity or possibility)

camera / video camera / movie camera / surveillance camera

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

business opportunity