3 ms·
On most modern (D)SLRs the lens isn't stopped down to the aperture setting until the shutter button is depressed (or you activate the DOF-preview button if it's
by msbarnett 14y ago
On most modern (D)SLRs the lens isn't stopped down to the aperture setting until the shutter button is depressed (or you activate the DOF-preview button if it's available). Even when the lens is stopped-down to the aperture you've set, the in-viewfinder effect is far subtler than it ends up being in the actual exposure.