Designed to deliver ultra-high quality images along with lightning fast operation, the new Canon 70-300mm f/4-5.6L EF IS Telephoto Zoom USM Lens brings a...... more
Designed to deliver ultra-high quality images along with lightning fast operation, the new Canon 70-300mm f/4-5.6L EF IS Telephoto Zoom USM Lens brings a favorite zoom range to the celebrated Canon L-series of lenses. It features two Ultra Low Dispersion (UD) elements for improved image quality and reduced chromatic aberration, and incorporates a floating focusing mechanism for sharpness from close up to infinity-The Canon EF 70-300mm f4-5.6L IS USM DSLR lens includes distance metering information, providing compatibility with the E-TTL II Flash system of late model cameras such as the EOS-1D Mark II N and EOS 5D . When used in conjunction with Canon's range of EX Speedlite flash units, the lens passes distance information to the flash Algorithm for markedly improved flash Exposure metering. The most influential upgrade, however is the Image stabilization capability when used with compatible cameras.-Featuring the latest 3-stop Image stabilizer for outstanding camera shake reduction, the EF 70-300mm f4-5.6 IS USM zoom lens also features super responsive and silent Autofocus capabilities. -This allows shutter speeds up to three stops slower than would otherwise be possible, with no perceptible increase in image blur. Photographers normally shooting a 300mm frame handheld at 1/500 second can obtain the equivalent result with a shutter speed of just 1/60 second, vastly extending options in low-light conditions.-Gyro sensors detect unwanted vibrations, triggering the corresponding movement of a correcting lens group perpendicular to the Optical axis. This alters the light path, returning the image to its correct position on the sensor or film plane. -The Canon EF 70-300mm f4-5.6 IS USM provides 2-mode IS for shooting immobile subjects. Mode 1 stabilizes the image along both the horizontal and vertical axes. For shooting while panning to follow a moving subject, Mode 2 turns off correction in the panned direction and prevents the effect of dragging the subject back thro
...looks good. After using this product for a few months I have not so far come up against any reliability issues but only time will tell. I therefore would recommend the product. However, always think carefully as to whether you actually really need something before you buy it. We buy so many things nowadays that we don't really need.
Focal Length: 70 mm - 300 mm
Lens Aperture: F/4.5-5.6
Advantages: easy to use, great depth of field and image quality, reasonably priced Disadvantages: none
...I received this Canon 50mm prime lens for my camera last Christmas.
~ Prime lenses ~
A prime len is a fixed lens and this lens is fixed at 50mm so instead of using the optical zoom to zoom in and out, a prime lens means that you, as the photographer, have to move forwards and backwards to shoot your subject at the right distance.
The benefits of using a prime lens are that it usually offers...
Advantages: Decent quality on a budget but only for APS-C digital SLR's. Disadvantages: Really quite poor when used with full-frame digital SLR's.
Being of more 'ordinary' status in the Sigma hierarchy, this AF 70-300mm f/4-f/5.6 DG APO Macro, has none of the more elaborate 'bells and whistles' evident on the more expensive EX range. What does this mean? Well, you don't get Sigma's superb HSM (Hypersonic Motor) AF (auto-focusing) for near silent and very fast AF, resulting in a somewhat more unsophisticated, noisy (although not overly...