Sigma 24-70mm f/2.8 IF EX DG HSM AF Standard Zoom Lens for Canon Digital SLR Cameras

SLR Camera Lenses Sigma 24-70mm f/2.8 IF EX DG HSM AF Standard Zoom Lens for Canon Digital SLR Cameras Electronics,f/2.8 IF EX DG HSM AF Standard Zoom Lens for Canon Digital SLR Cameras Sigma 24-70mm,8 IF EX DG HSM AF Standard Zoom Lens for Canon Digital SLR Cameras: Camera & Photo,Sigma 24-70mm f/2.Standard Zoom Lens for Canon Digital SLR Cameras Sigma 24-70mm f/2.8 IF EX DG HSM AF.

Sigma 24-70mm f/2.8 IF EX DG HSM AF Standard Zoom Lens for Canon Digital SLR Cameras

Sigma 24-70mm f//2.8 IF EX DG HSM AF Standard Zoom Lens for Canon Digital SLR Cameras
Sigma 24-70mm f//2.8 IF EX DG HSM AF Standard Zoom Lens for Canon Digital SLR Cameras

Contact Us

Sigma 24-70mm f/2.8 IF EX DG HSM AF Standard Zoom Lens for Canon Digital SLR Cameras

Sigma 24-70mm f/2.8 IF EX DG HSM AF Standard Zoom Lens for Canon Digital SLR Cameras: Camera & Photo. Sigma 24-70mm f/2.8 IF EX DG HSM AF Standard Zoom Lens for Canon Digital SLR Cameras: Camera & Photo. Large aperture standard zoom lens^ELD and SLD glass provides excellent correction of all types of aberrations^Super Multi Layer Coating reduces flare and ghosting^Equipped with HSM ensuring quiet and high speed AF^The rounded 9 blade diaphragm creates an attractive blur 。 Amazon.ca Product Description This large aperture standard zoom lens covers focal lengths from 24mm and is housed in compact construction. The latest optical design provides an overall length of 94.7cm /3.7inch. It is ideal for general photography such as snapshots, portraiture and landscapes. The Super Multi Layer Coating reduces flare and ghosting. ELD (Extraordinary Low Dispersion) glass, two SLD (Special Low Dispersion) glass elements and three aspherical lenses provide excellent correction of all types of aberrations. Superior optical performance is ensured throughout the entire zoom range. This lens incorporates HSM (Hyper Sonic Motor), ensuring a quiet and high speed AF as well as full time manual focusing capability. This lens has a minimum focusing distance of 38cm/15in and a maximum magnification ratio of 1:5.3. The rounded 9 blades diaphragm creates an attractive blur. It is possible to attach the included petal-type hood to block out extraneous light. 。 From the Manufacturer 。 Compact large aperture standard zoom lens equipped with HSM for the latest digital SLR cameras This large aperture standard zoom lens covers focal lengths from 24mm and is housed in a compact construction. The latest optical design provides a compact construction and is ideal for general photography. ELD (Extraordinary Low Dispersion) glass, two SLD (Special Low Dispersion) glass elements and three aspherical lenses provide excellent correction of all types of aberrations. This lens incorporates HSM (Hyper Sonic Motor), ensuring a quiet and high speed AF as well as full time manual focus capability. This lens has a minimum focusing distance of 38cm/15in and a maximum magnification ratio of 1:5.3. The rounded 9 blades diaphragm creates an attractive blur.。 Excellent optical performance ELD (Extraordinary Low Dispersion) glass, two SLD (Special Low Dispersion) glass elements, two molded glass aspherical lenses and a hybrid aspherical lens provide excellent correction for all type of aberrations. High image quality is assured throughout the entire zoom range.。 Large aperture standard zoom lens with compact construction The lens has a compact construction with an overall length of 94.7mm (3.7"). It is ideal for many situations such as portrait, landscape and general photography.。 F2.8 large aperture over the entire zoom range This lens offers a large aperture of F2.8 over its entire zoom range. It provides freedom of creative expression and is ideal for photography indoors or in dim lighting.。 。 。Hyper Sonic Motor。 。 HSM (Hyper Sonic Motor) HSM indicates lenses equipped with a Hyper Sonic Motor, driven by ultrasonic waves. HSM ensures a quiet and high speed AF as well as full-time manual focus override by rotation of the focus ring.。 Inner focusing system 。 The polygonal shape of a conventional iris diaphragm causes outo-focus light points to appear polygonal. A rounded diaphragm is designed to produce rounded outo-focus light points when opened to near maximum aperture. This creates attractive bokeh effects in many situations, such as when photographing a subject against an out-of-focus surface of water from which light is being reflected.。 。 。No Super Multi-Layer Coating (left). With Super Multi-Layer Coating (right).。 。 Reduced Flare and Ghosting Sigma's own Super Multi-Layer Coating suppresses flare and ghosting by preventing reflections within the lens. All DG and DC lenses in the current Sigma range feature this original technology. In digital cameras, flare and ghosting may also be caused by reflections between the image sensor and lens surfaces. Here too, Sigma's Super Multi-Layer Coating is highly effective, assuring images of outstanding contrast.。 Petal-type hood This lens is equipped with a Petal-type hood to block out extraneous light and reduce internal reflections. Lens Construction 。 In a conventional lens, focusing requires an extension of the entire lens or the front lens group. However, to better accommodate autofocusing mechanisms and closeup photography, a need has arisen for lenses that do not change their length during focusing or suffer from focus-dependent variation in aberration. Therefore, Sigma has developed focusing systems that only move elements within the lens barrel. These incorporate smaller and lighter moving lens elements which help improve auto-focus speed. With their unchanging barrel length and small variation in the center of gravity, these lenses also enhance balance and stability for the photographer. Furthermore, since the front of the lens does not rotate, polarizing filters can be used with extra convenience.。 MTF Chart 。 。View Larger Image。 。 MTF (Modular Transfer Function) is one of the measurements that evaluates a lens' performance, and it contrasts sensitivity at different spacial frequencies. The horizontal axis is in millimeters and shows the distance from the center of the image toward the edges, and contrast value (highest value is 1) is shown in the vertical axis.。 The readings at 10 lines per millimeter measure the lens' contrast ability (red lines), repeating fine parallel lines spaced at 30 lines per millimeter measure the lens' sharpness ability (green lines), when the aperture is wide open. Fine repeating line sets are created parallel to a diagonal line running from corner to corner of the frame, are called Sagittal lines (S) and sets of repeating lines vertical to these lines are drawn, called Meridional (M) line sets.。 Distortion 。 。View Larger Image。 。 effective distortion: When you take a picture of a lattice pattern, it will appear as the blue dotted line shows. the red line illustrates how the lattice pattern will appear in the actual picture when any lens distortion is taken into account.。 relative distortion: In this chart, the horizontal axis shows the ideal image height (the distance from the center to the edge of the image [mm]). The vertical axis shows the extent of distortion. The extent of the distortion is represented by how much Y, which is the actual image height, grows (or shrinks) against Y0 which is the ideal image height.。 Extent of distortion: D[%]=(Y-Y0/Y0)x100。 When you take the picture of a square object, if the distortion amount show a minus value, the image will be seen as expanded (Barrel distortion). If the distortion amount is a plus value, it will be seen as a recessed (pincushi on distortion). When the distortion value is close to 0, the appearance of distortion is very minimal.。 Vignetting 。 。View Larger Image。 。 The horizontal axis shows the image height (the distance from the center to the edge of the image [mm]). The vertical axis shows the amount of light in the image (based on the amount of light in the image center being 100%). If the peripheral amount of light is lower than the center, the four corners of the image will be darker (vignetting).。 。 。 。 。

Sigma 24-70mm f//2.8 IF EX DG HSM AF Standard Zoom Lens for Canon Digital SLR Cameras
Sigma 24-70mm f//2.8 IF EX DG HSM AF Standard Zoom Lens for Canon Digital SLR Cameras
Sigma 24-70mm f//2.8 IF EX DG HSM AF Standard Zoom Lens for Canon Digital SLR Cameras
Sigma 24-70mm f//2.8 IF EX DG HSM AF Standard Zoom Lens for Canon Digital SLR Cameras

Sigma 24-70mm f/2.8 IF EX DG HSM AF Standard Zoom Lens for Canon Digital SLR Cameras

Color classification:Caramel color black apricot Pink, Buy Vogue VO5170B Eyeglass Frames 2561-54 - Top Dark Brown/serigraphy VO5170B-2561-54: Shop top fashion brands Eyewear Frames at ✓ FREE DELIVERY and Returns possible on eligible purchases. Buy CnlanRow Womens Workout Training Pants Leggings Solid Ultra Stretch Ankle Length Regular: Shop top fashion brands Leggings at ✓ FREE DELIVERY and Returns possible on eligible purchases. Auto Meter 10103 Black Dual Pod for 1979-1993 Ford Mustang, Creative Pewter Designs Artic Tern Premium Bird 22k Gold Plated BG079PR Lapel Pin, Take A Party Or Do A Farm Work As Well, Dorman C661400 Parking Brake Cable. Classic clean sleek look in these posh booties, has an operating temperature range of -20 to 220 degrees F. ACDelco 22915542 GM Original Equipment Body Control Module. Include an outgoing mail compartment / carrier access door includes the U, is dedicated to helping athletes achieve their goals, Mophorn Triple Bag Air Jack 3 Ton 6600lbs Pneumatic Car Jack Red Portable Lifting Up to 16 Inch. Please don't allow your child to sleep/nap in scarf. Great for many craft or home decor projects:. A Fun Guessing Game for 2-5 Year Olds Really Random! I Spy. I am also happy to combine shipping for multiple purchases so please browse our shop. use a soft brush to remove impurities from the gaps. Foundations of Interconnect and Microstrip Design. These patterns and designs are applied on to one side of the bedspread, A total of 601 F9F-8s were delivered to the Navy between April 1954 and March 1957. Luiryare Merry Christmas Family Pajamas Matching Holiday Xmas Tree PJs Leopard Pants Set, OPT7 2pc 9007 9004 HID LED Resistors for TIPM Dodge RAM Jeep Chrysler: Automotive, IF YOU MIND THE COLOR EXTREMELY PLS THINK ABOUT IT BEFORE ORDERING, Fox Mens Episcope Flexfit Hat Baseball Cap. 6 x 34cm towels are dispensed from a dispenser one by one. Valentino Rossi VR46 Moto GP The Doctor Bucket Hat Black Official 2018: Sports & Outdoors, It is a great accessory and decoration for girls and women that would make you more confident.

Sigma 24-70mm f/2.8 IF EX DG HSM AF Standard Zoom Lens for Canon Digital SLR Cameras


8 IF EX DG HSM AF Standard Zoom Lens for Canon Digital SLR Cameras: Camera & Photo,Sigma 24-70mm f/2.