Fo­cal-plane shut­ter

Sun.Star Cebu Weekend - - Lens - Al­bert Pe­drosa

ONE of the most pre­cise mech­a­nisms in ev­ery cam­era whether mir­ror­less or con­ven­tional DSLR is the fo­calplane shut­ter. This is the me­chan­i­cal part of a cam­era that con­trols the amount of time the light is al­lowed to pass through and ex­pose the sen­sor.

The sound that you hear when your cam­era takes a shot is not the au­di­ble sound you hear in your cell­phone but it’s ac­tu­ally the move­ment of me­chan­i­cal pieces open­ing and clos­ing the win­dow just be­fore the sen­sor. The fo­calplane shut­ter is one of the three ex­po­sure con­trols you can ad­just when con­trol­ling the amount of light pass­ing through your cam­era.

Shut­ter speed is not de­pen­dent on your lens but your cam­era body. This means that even if you change from one lens to the next, you’ll still have the same shut­ter speed op­tions.”

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