Canon EF-S 17–85mm lens
|EF-S 17–85mm f/4–5.6 IS USM|
|Short back focus:||Yes|
|Focal length (35mm equiv.):||27–136mm|
|Frame coverage:||APS-C 1.6x|
|Aperture (max/min):||f/4.0–5.6 / f/22–32|
|Construction:||12 groups / 17 elements|
|# Diaphragm blades:||6|
|Close focus distance:||0.35 m (1.1 ft)|
|Max. magnification:||0.20x @ 85mm|
|Max. diameter:||78.5 mm (3.1 in)|
|Max. length:||92 mm (3.6 in)|
|Weight:||475 g (1.1 lb)|
|Filter diameter:||67 mm|
|Case:||LP1116 Soft Case|
|Angle of view|
The Canon EF-S 17–85mm f/4–5.6 IS USM is a standard zoom lens for Canon digital single-lens reflex cameras with an EF-S lens mount. The EF-S designation means it can only be used on EOS cameras with an APS-C sensor released after 2003. The field of view has a 35 mm equivalent focal length of 27.2–136mm, and it is roughly equivalent to the Canon EF 28-135mm lens on a 35mm film SLR. Despite the word "macro" being present on the lens body (as visible in the infobox image), this lens is not capable of true 1:1 macro photography.
The 17–85mm was bundled as a kit lens with the EOS 30D, EOS 40D, EOS 50D and EOS 60D. It was also packaged with the EOS 400D (known as the Digital Rebel XTi in North America) as an alternate to the EF-S 18–55mm (typically labeled as the "400D enthusiast's kit").
The EF-S 17–85mm is a step up in build quality and in focal range compared to the EF-S 18–55mm lens. Its image quality is higher than the original and the Mark II versions of the 18–55mm lens. It is slower and has lower image and build quality compared to the EF-S 17–55mm lens, although it is cheaper and has a longer focal range.
The closest lens to the 17–85mm in the standard EF lens range is the EF 28–135mm lens, which has the equivalent range on a full-frame sensor, similar image quality and image stabilization.
The ″Error 01″ issue
This lens is affected by a construction fail that appears when any attempt to take a photo results in an "Error 01" message showing on the LCD screen (in some camera models an "Error 99" is shown instead).
The root cause of this error is located in the diaphragm unit flex cable. The cable is bend every time the zoom ring is operated, until it ends breaking and thus showing the error message.
Disassemble and repair
There is a way to disassemble the lens and replace either the diaphragm unit (more expensive but faster and easier) or only the flex cable (cheaper but slower and more delicate since it requires soldering skills).
Diaphragm unit and flex cable can be found on the internet at a price of around US$25 and US$5 respectively.
- "Canon U.S.A. : Support & Drivers : EF-S 17-85mm f/4-5.6 IS USM". Usa.canon.com. Retrieved 2013-08-24.
- "Canon EF-S 17-85mm f/4-5.6 IS USM - EF-S - Canon UK". Canon.co.uk. Retrieved 2013-08-28.
- "Canon Camera Museum | Camera Hall - Lenses (EF Mount) EF-S 17-85mm f/4-5.6 IS USM". Canon.com. Retrieved 2013-08-24.
- "Canon EF-S 17-85mm 1:4-5.6 IS USM review: Digital Photography Review". Dpreview.com. Retrieved 2013-08-24.
- "Canon EF-S 17-85mm f/4-5.6 IS USM Lens Review". The-digital-picture.com. 2004-12-30. Retrieved 2013-08-24.
- "Canon EF-S 17-85mm f/4-5.6 USM IS - Retest @ 15MP / Review". Photozone.de. Retrieved 2013-08-24.
- "Canon 99 error or how to disassemble Canon 17-85 IS USM and replace diaphragm unit | Roman Paulov blogofolio". Paulov.com. Retrieved 2013-11-22.
- "Repair of an Canon EFs 17-85 IS lens (Januari 2009)". Doekle.nl. Retrieved 2013-11-22.