Canon EF – S 17 – 55mm f/2.8 IS USM Lens

Canon EF – S 17 – 55mm f/2.8 IS USM lens is especially designed for Canon’s DSLR cameras to meet the demands of users. This amazing EF – S zoom lens was launched in 2006. Canon EF – S 17 – 55mm f/2.8 IS USM lens is one of the most accepted lens with a highest image quality, a very famous focal length range of 17-55mm, large f/2.8 aperture and 3 – stop Image Stabilization or Image Stabilizer (IS). Measuring 110.6 mm in length x 83.5 mm in diameter / 4.4 inches x 3.3 inches and weighing 22.8 oz / 645 g, the lens has brilliant and solid build quality. The external construction of the Canon EF – S 17 – 55mm f/2.8 IS USM lens is made up of polycarbonate. The lens is compatible with Canon EF 12 II extension tube, EF 25 II extension tube and EOS Digital Rebel series.

With an inner focusing, AF algorithms and a ring type USM (Ultra Sonic motor), the standard zoom lens attains autofocus quietly, very fast and quickly and with FTM (full time manual) focusing, it adjusts focus even in AF (autofocus) mode. The focal length range of EF-S 17-55mm lens is equivalent to 27mm-88mm. Canon EF – S 17 – 55mm f/2.8 IS USM lens has optical Image Stabilizer technology which is specially designed to compensate with shift and angular camera shake and it also provides slow shutter speeds. This makes sure crisp, sharp and clear images even in low light conditions. The optical structure of Canon EF – S 17 – 55mm f/2.8 IS USM lens is made of 12 groups including 19 elements with 2 super Ultra – low dispersion (UD) glass plus 3 aspherical elements. These super UD glass and aspherical elements deliver an excellent image quality during zoom range.

The standard zoom lens features 7 rounded diaphragm blades. The lens is sharp wide open at f/4 throughout its all focal length range. The filter size is 77 mm. The prime lens has maximum and minimum aperture range of f/2.8 and f/22 respectively. Super Spectra coatings minimize ghosting and flare and ensure high contrast and accurate color balance. The horizontal, diagonal and vertical angle of view of this Canon EF-S 17-55mm f/2.8 IS USM lens are 68°40′ – 23°20, 78°30′ – 27°50′ and 48° – 15°40′. The Canon lens is much better than EF S 17-40mm f4L USM lens in terms of sharpness and fast aperture. Chromatic aberration (CA) and distortion level are well controlled in Canon EF S 17-55mm f2.8 IS USM lens. This wonderful 17-55mm USM lens is inexpensive therefore it is easily accessible to all serious and proficient photographers. The focus and zoom rings operate moderately quiet and smooth.

Specifications of Canon EF – S 17 – 55mm f/2.8 IS USM lens

  • Name – Canon EF – S 17-55mm f/2.8 IS lens
  • Releasing Date – 2006
  • Camera Mount type  – Canon EF – S
  • Lens type – standard zoom lens
  • Focus details – inner focusing, USM (Ultra Sonic Motor) with manual focus option
  • Maximum format size – 35 mm full frame
  • Features – Image stabilization, autofocus
  • Focal length range – 17 – 55 mm
  • APS equivalent – 27 – 88mm
  • Image Stabilization – Yes
  • Dimensions – 4.4 inches x 3.3 inches (83.5 mm diameter x 110.6 mm length)
  • Maximum aperture – f/2.8
  • Minimum aperture – f/22
  • Number of diaphragm blades – 7 (circular)
  • Lens construction – 19 elements in 12 groups, including 2 UD (ultra – low dispersion) lens glass element, 3 aspherical elements
  • Weight – 22.8  oz (645g)
  • Focus ring rotation – 90°
  • Diagonal angle of view – 78°30′ – 27°50′
  • Horizontal angle of view – 68°40′ – 23°20′
  • Vertical angle of view – 48° – 15°40′
  • Filter size – 77 mm
  • Max length at full extension – 5.8 inches
  • Zoom system – rotary

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