Waterproof video camera
A digital single-lens reflex camera (digital SLR or DSLR) is a digital camera that uses a mechanical mirror system and pentaprism to direct light from the lens to an optical viewfinder on the back of the camera.
The basic operation of a DSLR is as follows: for viewing purposes, the mirror reflects the light coming through the attached lens upwards at a 90 degree angle. It is then reflected twice by the pentaprism, rectifying it for the photographer's eye. During exposure, the mirror assembly swings upward, the aperture narrows (if set smaller than wide open), and a shutter opens, allowing the lens to project light onto the image sensor. A second shutter then covers the sensor, marking the end of the exposure, and the mirror lowers while the shutter resets. The period that the mirror is flipped up is referred to as "viewfinder blackout". A fast-acting mirror and shutter is preferred so as to not delay an action photo.
All of this happens automatically over a period of milliseconds. Fast cameras do this upwards of 10 times a second.
DSLRs are often preferred by professional still photographers because they allow an accurate preview of framing close to the moment of exposure, and because DSLRs allow the user to choose from a variety of interchangeable lenses. Most DSLRs also have a function that allows accurate preview of depth of field.
Many professionals also prefer DSLRs for their larger sensors compared to most compact digitals. DSLRs have sensors which are generally closer in size to the traditional film formats that many current professionals started out using. These large sensors allow for similar depths of field and picture angle to film formats.
The term DSLR generally refers to cameras that resemble 35mm format cameras, although some medium format cameras are technically DSLRs.
Waterproof video camera
Waterproof Video Camera: Features: 6 Megapixel Still Images 5x Optical Zoom Lens 2.5-Inch LCD Display
SANYO > Digital Media Camera
Top 10 Viewed Articles. Are ‘Full HD’ Camcorders The Real Deal? Sanyo Debuts Waterproof Video Camera; Study Reveals Who Has The Best Camcorders? Sony Unveils Worlds Smallest HD ...
Sanyo Debuts Waterproof Video Camera - Smarthouse
The Sanyo Xacti is amazing. Its small and compact, waterproof, takes excellent video and surprisingly good still photos. Its almost the perfect camera.
Amazon.com: Sanyo Xacti VPC-E1 6MP Waterproof MPEG4 Camcorder with 5x ...
... digital camera, olympus waterproof digital camera, waterproof shockproof camera, waterproof video camera ... The sportsmans solution to digital photography! The IC 500 digital camera is ...
Waterproof Camera - Compare Prices, Reviews and Buy at NexTag - Price ...
As waterproof video camera, it has the capacity to shoot 54 minutes of colour TV resolution video (640x480 pixels) with a memory card, also capturing sound.
Magicseaweed Surf Shop :: Digital HERO 3 Waterproof Camera
Underwater video cameras for viewing or recording on the surface, without getting wet. Used as fishfinders and to check prop, hull, anchor, bottom or bait.
SeaViewer Underwater Video Cameras|Underwater camera|Waterproof Camera ...
Waterproof Video Camera - Shoot photo and video with this rugged helmet cam. ... Record your outdoor adventures, including wildlife-watching and birding expeditions, with hands ...
The National Geographic Online Store - Waterproof Video Camera
Join our newsletter to receive updates and special offers from Waterproof Cases.net.
Micro Waterproof Camera Case fits Flip Video Camera AQP-404
Advertising/Design Goodness, adgoodness. An advertising blog / design blog / advertising community archive /concentrating on the best and sometimes the worst ads and design around ...
Sanyo Waterproof Video Camera advertising/design goodness ...
WATERPROOF Miniature "Tube" SUBMERSIBLE "Lipstick" Video Camera with Built-in Infrared LED illuminators © ©
Latest News
[ War & Conflict ] 'Welcome to Timor'
Graffiti in East Timor reads "I love you military kanada."
[ Science & Technology ] Canada and the atom
Montreal, 1945: Canadian scientists demonstrate the power of the atom to CBC Radio listeners.