Posts Tagged ‘lock’

Lens Twist Trick: How to Lock a Lens at a Certain Aperture

Modern DSLR lenses don’t usually have aperture rings, and opening and closing the aperture is the camera’s responsibility. If for some reason you need to keep the aperture blades locked in a certain position, the “lens twist trick” can help you do so. Simply untwist the lens from the camera while holding the depth of field preview button.

One practical use for this trick is time-lapse photography. Cameras don’t always close the aperture to exactly the same size every shot, and the slight variation can cause a flicker in the resulting time-lapse video (a problem called “aperture flicker“).

(via planet5d)

Locking Lens Cap Protects Gear and Makes Thieves Look Ridiculous

The Lens Lock is the latest product in the GearGuard gear locking system by Gary Fong (maker of the well known LightSphere). It attaches to the back of a lens like an ordinary rear lens cap, but can be secured and locked using a cable/lock combo. This allows you to lock the gear down when not in use (like you would do with a bike) or lock it together with other gear in your bag, preventing individual items from being stolen from your bag.
Read more…