17 mm 2.3x 4 40 mm 77 mm 8806A002 A new and affordable L-series ultra-wide-angle zoom lens that's ideal for both film and digital SLRs. Superior optics are assured by the use of three Aspherical lens elements, in addition to a Super UD (Ultra-low Dispersion) glass element. Optical coatings are optimized for use with digital cameras. It offers weather-resistant construction similar to other high-end L-series lenses. Canon EOS Cameras Canon Canon, Inc EF EF 17-40mm f/4L USM Ultra Wide Zoom Lens Lens Wide Angle Yes www.usa.canon.com
List Price: Price: 802.99
Canon EF 70-200mm - click on the image below for more information.
17-40mm ultra-wide-angle zoom lens with f/4 maximum aperture for Canon SLR cameras
3 aspherical lens elements and super UD glass element create superior optics in all conditions
Powerful ring-type ultra-sonic monitor (USM) produces fast and silent autofocusing
Focuses as close as 11 inches; supports screw-in 77mm filters or up to 3 gel filters
Weather-resistant construction; measures 3.3 inches in diameter; 1-year warranty
Canon EF 70-200mm
Broaden your perspective with the Canon EF 17-40mm ultra-wide-angle zoom lens. Ideal for both film and digital SLR cameras, the lens offers three aspherical lens elements in addition to a Super UD (ultra-low dispersion) glass element, creating superior optics in all conditions. In addition, the lens focuses as close as 11 inches (0.28mm), and offers both Canon's full-time manual focus and a powerful ring-type ultra-sonic monitor (USM) that produces fast and silent autofocus. Other features inclu
Canon EF 17-40mm f/4L USM Ultra Wide Angle Zoom Lens for Canon SLR Cameras
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Canon EF 70-200mm question by a_joemar: Canon EF-s 55-250mm IS or Sigma 70-200mm f/2.8 EX DG HSM II Macro Lens?
which one has the overall output image quality?
Does Sigma is worth buying for compared to canon regarding this kind of model?
pls advice. thanks
Canon EF 70-200mm best answer:
Answer by fhotoace I am really surprised you need to ask this question.
If you have been following the conversation re: generic lenses, Canon seems to make it difficult for generic lenses to be fully compliant with the features found on the fine Canon cameras. There have been those here who complain that updating their cameras firmware (something that extends the usable life of a digital SLR) can cause generic lenses to have to go back to their maker for an in lens chip replacement. All this at the owners cost .... this sort of negates any savings realized when the generic lens was first purchased.
You may want to use the rule the pros use. Always buy the OEM lenses made buy the cameras system you chose to buy in the first place.
This is a quote relating to Nikon's but there is no reason to believe Canon's design engineers don't use a similar policy.
"Nikon often includes secret features in cameras and in lenses to make them compatible with the next five years or so of secretly planned technology.
For instance, the 1988 F4 is completely compatible with AF-I and AF-S lenses which didn't appear until 1992 and 1998.
Nikon AI lenses in 1977 already had secret lugs on the back which couple lens information to cameras for Matrix metering, not introduced until the FA of 1983.
Zoom AF lenses, ever since they were introduced in 1986, have always had focal length encoders which insert data into today's digital cameras' EXIF data.
AF lenses of today ... still have mechanical lugs for backwards compatibility with the matrix meter of the 1983 FA, and manual focus lenses still have prongs for coupling to the 1959 (Nikon) F. -- KR
Regarding "marco" lenses. True macro lenses can focus on subjects at 1:1 subject to image ratios. What many generic lens makers call "marco" are actual close focus lenses, but with no way for the photographer to set specific subject to image ratios when shooting under precise, measured conditions.
ef 70-200mm f4 is with squirrel in 228 park
ef 70-200mm f4 is with squirrel in 228 park Canon EF 70-200mm Video Rating: 5 / 5
