http://www.stevezimages.com/adapter-lens/
Digital Single Lens Reflex Cameras Today
Single lens reflex cameras are advanced, high-end cameras favored by professional photographers and amateur enthusiasts. Such photographers gravitate toward SLR cameras because they are faster, take more precise photographs, and are more adaptable.
Have you ever used a film camera and noticed that photo you took is slightly off-center from the image you framed through the viewfinder, especially on close-up shots? This happens because one cannot look through the actual lens of the camera-the shutter and film (or in the case of digital cameras, the image sensor) are in the way. Thus, the viewfinder is off to the side of the actual Camera Lens, resulting in two slightly different angles of view.
SLR cameras fix this problem by using mirrors and prisms to let the photographer see through the camera lens. It achieves this by lowering a mirror into the lens box. The mirror reflects the image coming through the lens upward into a prism, which in turn bounces the image into the viewfinder. This way, the photographer is able to see exactly what the camera lens is seeing, with the exception of the brief instant when the photograph is being taken.
At this point, the mirror flips up out of the way of the lens box. The shutter opens, exposing the film or image sensor to the light coming through the lens. The picture is captured, the shutter closes, the mirror drops back down, and the photographer can once again see through the viewfinder.
The introduction of digital “point and shoot” cameras changed the game slightly. They also allow the photographer to see exactly what the lens is seeing. They have limitations, however, that some professional photographers feel make them unusable. The main drawback of commercial digital cameras is a considerable lag time between when the photographer pushes the button and when the camera actually captures the image. During these seconds, the camera may be jostled, the angle change, the lens shift out of focus, or the subject being photographed may move. Although perfectly fine for still pictures, photographers who need to capture an image instantly, such as sports, action, or wildlife photographers, the lag time is unacceptable.
A new generation of Digital Slr cameras (DSLR) combine the best of both technologies. They use the SLR mirror system to allow the photographer to see exactly what the lens sees. Simply by replacing the film behind the shutter with a digital light image sensor instead, a DSLR camera is still able to capture images instantly. In this way, a DSLR camera combines the accuracy and speed of an SLR camera with the convenience of digital cameras.
As DSLR cameras are usually high-end machines intended for a professional market, they tend to be more expensive, but also incorporate other advanced features. An average DSLR camera usually includes auto focus options, live preview, electronic flash controls, the ability to swap specialized lenses, and electronic adjustment of the captured digital image, such as optimizing the contrast and color, red-eye correction, and monochrome options, among many others. DSLR cameras also generally have a larger digital image sensor, providing better quality images with a higher pixel resolution, lower noise, and a superior color range. While the price of DSLR cameras make them a financial investment, professional photographers and amateur enthusiasts will consider it well worth it.
About the Author
Ed Terran is the pen name for the editor of a
camera directory
Canon camera listings
Canon XL2 Guide : Canon XL2 EF Lens Adapter Review
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*Ultra Rare* Kinoptik Macro Apochromat 150mm f/2.5 T mount+ Y/C adapter $8,100.00 |
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PRO 35 LENS ADAPTER $7,000.00 |
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Aaton XTR Super 16mm Camera w/ 3 Mags, Video Assist, Bats, Case & Lens Adapters $4,995.00 |
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*Mint in box* Leica Macro Elmar-M 90mm f/4 bundle Macro-Adapter-M 90/F4 $4,210.00 |
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*Mint-* Leica Macro-Elmar-M 90mm f/4 E39 bundle Macro-Adapter-M 90 F4 $3,880.00 |
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Angenieux Paris 90mm f/1.8 Type P1 adapter to Leica L39, 90/f1.8 $3,600.00 |
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Panasonic AG-AF100 Camera with Red Rock Canon EF Lens Adapter $3,500.00 |
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Canon KH19x6.7 KAS SY14 19x HD Remote Motor Drive Zoom Lens w/ PMW-EX3 Adapter $3,500.00 |
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▶Mint◀ Leica Summicron 35mm f/2 ASPH E39 in silver bundle L39-M adapter 35/F2 $3,200.00 |
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Canon 50mm F/0.95 TV Lens w/ C-mount Adapter + 72mm UV Filter For Nex, M4/3 – EU $2,492.24 |
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New Mamiya 7 ii body + 80mm F4 Lens Kit Pack + 135 adapter ship by FedEx $2,497.51 |
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*EX+* Angenieux Paris 135mm f/2.5 Type P2 w/EXAKTA-Canon EOS adapter 135/F2.5 $2,400.00 |
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ALPA KERN-MARCO-SWITAR 50mm F1.8 AR with adaptor Ready for Leica M8 / M9 $2,399.00 |
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Cooke Kinetal 150mm f/3.8 T4 M42 mount +adapter 150/3.8 $2,220.00 |
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Leica S2/Canon EOS Movement Adapter for Fuji GX680 lens $2,000.00 |
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Voigtlander Prominent Nokton 50mm f1.5 lens to Leica M M39 w/ Camera adapters $1,899.00 |
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Lens LEICA, Summilux-R 80 mm F/1.4 + adapter LEICA-R/LEICA-M $1,900.00 |
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Leica Apo-Macro-Elmarit-R 100mm f/2.8 NMIB + Macro-Adapter-R 3 Cam bundle $1,800.00 |
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Mamiya 7 II Medium Format Film Camera with 80mm Lens + 135 panoramic adapter $1,799.00 |
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Letus Ultimate Lens Adapter M82 Panasonic HVX200 Kit Bundle Canon Nikon $1,779.00 |
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FUJINON LENSE ADAPTER ACM-21 FOR SONY PMW-EX3 VIDEO CAMERA $1,699.00 |
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Fujinon Sony ACM-21 2/3″ Lens Adapter for Sony PMW-EX3 $1,695.00 |
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Working Sony BVP-550 Camcorder + CA-550 ADAPTOR AND FUJINON A15x8BEVM-28 LENS $1,599.00 |
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Cooke varokinetal 9-50 16mm lens 2.2 zeiss Red One Scarlet PL mount adapter $1,599.00 |
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Contax RF Zeiss-Opton Tessar 50mm f/3.5 Red T+ RF-L39 and Leica L39-M adapter $1,590.00 |
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Modified Sliding adapter for Hasselblad V digital back with Linhof 612 lens $1,500.00 |
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NEC NP3150 LCD Projector 5000 Lumens+ NP05ZL Conference Zoom Lens + HDMI Adapter $1,182.69 |
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Olympus OM 18/3.5 # 103543 …… Minty/bundled 49-72 Filter Adapter,Caps $1,450.00 |
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Leica Super-Angulon-R 21/3.4 21mm f/3.4 /w Red Scale M mount adapter for Nex-7 $1,349.00 |
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Leica Visoflex III+M39 to M adapter #16466M Telyt 200/4.0 200mm f/4 bundle $1,339.00 |
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Leica APO Macro Elmarit-R 100mm f/2.8 Lens 3 Cam w/ Macro Adapter-R $1,325.00 |
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Leica Super-Angulon-R 21mm f/4 Lens with Leica R to Canon EOS Lens Adapter Ring $1,295.00 |
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Prominar INFLIGHT Anamorphic 1.5x lens with RED STAN Adapter $1,233.00 |
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Nikkor M-B Adapter… Extremely Rare “Nikkor ” mark $1,200.00 |
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JVC HZ-CA13U PL MOUNT FILM LENS ADAPTER HZ-CA13 GY-HM750U GY-HM790U GY-HM-710U $1,195.00 |
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Rollei Rolleiflex SL66 Carl Zeiss Lens to Hasselblad V-mount Camera Adapter $1,099.99 |
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FujiFilm Fuji FinPix X100 + Metal Lens Adapter+ Hood + UV Filter – Brand New $1,155.00 |
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Rare Pantacon Six MC 500mm F/5.6 5.6/500 Prakticar Lens & Adapter Ring for M42 $999.99 |
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Letus Extreme 35mm Depth of Field DOF Lens Adapter Rails Mount Support Canon $1,089.99 |
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CONTAX 100mm f2.8 Makro Planar lens with lens hood / adapter ring / pouch $1,089.00 |
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Vivitar 135/1.5 Professional T mount # 197027 ……. Nikon adapter $1,100.00 |
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Leica 90/2 Summicron factory converted to SM # 1681774 .. Minty/Bundle M Adapter $1,100.00 |
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Perkin-Elmer 800/11 Solid Catadioptric # 8480068 Hood,UV Filter,Minolta adapter $1,100.00 |
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*EX+* Leica TELYT 200mm f/4 Visoflex w/16466m Adapter for Visoflex II 200/F4 $1,099.00 |
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Rollei Rolleiflex SL66 Lens to Canon EOS EF Camera Focusing Helicoid Adapter $999.99 |
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NEC NP 2150 LCD Projector 4200 Lumens + NP05ZL Conference Lens + HDMI Adapter $788.13 |
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New Century Super Fisheye Adapter Mark II For Fujinon Lens Fish-eye $1,045.00 |
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Zörk Mamiya 645 to Canon EOS EF Panorama-Shift Adapter + 35mm f3.5 N lens. EU! $1,029.21 |
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Leica Visoflex 1:4,8/280 Telyt + Adapter f. rapid-focusing mount $1,011.00 |
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LIKE NEW- Letus 35mm Lens Adapter Bundle $1,000.00 |
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Panasonic AG-DVX 100AP Contax mount for 35mm lens & P+S Technik Mini 35 Adaptor $999.00 |
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P+S Technik Mini 35 Adaptor & Sony Pd150 Mini DV camera PL mount for 35mm lens $999.00 |
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P+S Technik Mini 35 Adaptor for Panasonic HVX 200 with Pl mount for 35mm lenses $999.00 |
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ISCO-GOTTINGEN ISCOMORPHOT MC 2x Anamorphic Lens Adapter $995.00 |
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Fujinon ACM-18 1/2″ Lens Adapter for PMW-EX3 ACM18 $999.99 |
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Ikegami MSL-P 370M MSA-N Microscope Lens Camera Adapter $999.00 |
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Linhof 4×5 Color View camera-long rail-Symmar lens-Roll film adapter $950.00 |
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35/70mm Kollmorgen D150 Adapter Projector Lens. Used in Good Condition. $995.00 |
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New! DAYI 612 SHIFT 6X12 Large Format Camera included a 58mm lens adapter $899.99 |
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New Century Precision Optics 0.3x Ultra Fish-eye Adapter Lens 58mm MKII Fisheye $950.00 |
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Israeli Civilian Military Gas Mask w/ Nato Filter $24.00 Intended for Israeli Military during War in a contaminated area. Comes with NBC filter lasts up to 8 hours depending on level of contamination. Adjustable Straps. For general civilian use. Adjustable straps. Size: Adult… |
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>Std 2.5v diagnostic set. Standard 2.5v Diagnostic Set … |
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Welch Allyn Panoptic W/blue Filter & Lens 11820 $1,105.92 Panoptic W/blue Filter & Lens… |
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Zoom for Kinect $13.98 REDUCES SPACE NEEDED TO PLAY UP TO 40%USERS CAN PLAY WITH 1 OR 2 PLAYERSCLIPS OVER THE KINECT(TM) SENSORNO MODIFICATION OR COMPLEX INSTALLATION NEEDEDPLUG & PLAYSEAMLESSLY BLENDS IN WITH THE LOOK OF THE KINECT(TM) SENSORCOMPATIBLE WITH ALL KINECT(TM) SOFTWAREUPC : 743840860853Estimated Shipping Weight : 0.0… |
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22-In-1 Deluxe Starter Kit – Black for DSi $19.99 Designed for the new DSi. The ICON 22-In-1 Deluxe Starter Kit includes four game cases to protect your game cartridges from dust and scratches, a pair of headphones to enjoy high-quality sounds, an audio splitter so you and your best friend can listen to music together, a car adapter to give you the power you need when you are on the road, a docking station to display and charge your DSi in fashio… |
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22-In-1 Deluxe Starter Kit for DSi – Pink $24.99 Designed for the new DSi. The ICON 22-In-1 Deluxe Starter Kit includes four game cases to protect your game cartridges from dust and scratches, a pair of headphones to enjoy high-quality sounds, an audio splitter so you and your best friend can listen to music together, a car adapter to give you the power you need when you are on the road, a docking station to display and charge your DSi in fashio… |
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Pyle PLCM36 3.5-Inch Slim TFT LCD Universal Mount Monitor with License Plate Mount Rear-view Night Vision Backup Camera $139.99 SCREEN FEATURES:3.5″ SLIM TFT LCD STAND MONITORAUTOMATICALLY SWITCHES ON WHEN REVERSINGPAL/NTSC COMPATIBLEAUTO SWITCHINGBRIGHTNESS: 200 CD/M2CONTRAST RATIO: 200:12 VIDEO INPUTSDIM: 3.7″W X 3.3″H X .67″D;CAMERA FEATURES:PAL/NTSC COMPATIBLE380 TV LINES RESOLUTION X 60 FIELDSIMAGE SENSOR: OV7910 COLOR CMOSLENS: 6MM 92 NIGHT VISIONBACKUP CAMERALOW LIGHT ILLUMINATION: 1.5 LUX/ F1.2VIDEO OUTPUT: RCA 1.0… |
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Sigma 320101 85 mm f/1.4 Telephoto Lens for Canon EF / EF-S $969 The Sigma 85mm F1.4 EX DG HSM is a large apertureThe large aperture of F1.4 is especially ideal for portrait and low light photographyIt features a minimum focusing distance of 33.5 inches and a maximum magnification 1:8.6 |