Canon Slr
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 Canon Speedlite 600EX RT Flash for Canon SLR Cameras  US $599.00
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 Canon MR 14EX Macro Ring Lite for Canon Digital SLR Cameras US $549.00
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 Canon Speedlite 580EX II Flash for Canon SLR US $519.99
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 NEW Canon Speedlite 430EX II Flash for EOS SLR US $329.99
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 Canon Speedlite 430EX II Flash for Canon Digital SLR Cameras US $299.00
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 Canon 430EX 430 EX II E TTL II Speedlite SLR Flash NEW US $289.97
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 Canon Speedlite 320EX Flash for Canon SLR Cameras Super Savings Kit US $259.92
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 Sigma EF 610 DG Super E TTL II Flash for Canon EOS SLR US $255.00
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 Pro 7500EDF Digital Flash for Canon 50D SLR US $249.00
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 Pro 7500EDF Digital Flash for Canon 30D 40D SLR US $249.00
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 Pro 7500EDF Digital Flash for Canon 5D Mark II SLR US $249.00
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 Pro 7500EDF Digital Flash for Canon 7D SLR US $249.00
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Canon Slr Digital Camera Appearance
A digital single-lens reflex digital camera (digital SLR or DSLR) can be a canon slr digital camera body that uses a mechanical mirror process and pentaprism to direct light in the lens to an optical viewfinder for the back in the camera. The essential operation of your DSLR is as follows: for viewing applications, the mirror reflects the lighting coming via the connected lens upwards at a 90 degree angle. It can be then reflected twice by the pentaprism, rectifying it for your photographer's eye. While in exposure, the mirror assembly swings upward, the aperture narrows (if stopped down, or set scaled-down than huge open), including a shutter opens, enabling the lens to project brightness onto the image sensor. A next shutter then handles the sensor, ending the publicity, as well as the mirror lowers though the shutter resets. The period of time how the mirror is flipped up is referred to as "viewfinder blackout". A fast-acting mirror and shutter is recommended so as to not delay an action photo. All of this comes about automatically over a period of time of milliseconds, with canon slr digital camera body built to do this 3–10 times a subsequent. DSLRs are frequently desired by expert even now photographers because they enable an correct preview of framing near for the moment of vulnerability, and due to the fact DSLRs enable the user to choose from a variety of interchangeable lenses. Most DSLRs also use a performance that lets precise preview of depth of field. A lot of professionals also opt for DSLRs for their larger sensors when compared with most compact digitals. DSLRs have sensors which are typically closer in size towards standard movie formats that quite a few present professionals started out out making use of. All of this takes place automatically more than a period of time of milliseconds, with canon slr digital camera body designed to do this 3–10 times a minute. These large sensors permit for comparable depths of industry and picture angle to movie formats.
Researchers turn a DSLR into hyperspectral camera using PVC and duct tape, MacGyver green with envy (Engadget)
Hyperspectral imaging is a method that captures a far greater amount of the
electromagnetic spectrum than a regular photograph. This makes it ideal for a
variety of uses, from night vision to identifying mineral deposits from afar,
but the problem is that hyperspectral sensors don't come cheap. However, some
intrepid imaging scientists have come up with a way to turn your DSLR into a
hyperspectral camera using stock SLR glass, a gel diffraction filter, PVC
pipe, duct tape, some serious ingenuity and plenty of elbow grease. Thusly did
they build a (relatively) cheap-as-chips imaging spectrometer that can deliver
spectral resolution equal to that of commercial solutions at a far lower cost.
The result of their labor is a computed tomography image spectrometer (CTIS),
which takes hyperspectral images by splitting light into spectral bands with a
diffuser and recording them using a Canon EOS 5D Mark I in HDR mode. As
constructed, the prototype takes a spectral resolution of up to 4.89nm in a
120 x 120 pixel area, though at a longer exposure time than dedicated devices.
Having proven their concept, the plan is to build another lens extension using
custom tubes and lenses that'll ...
Canon 7D Digital SLR Camera and 28-135MM Lens Bundle
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