Canon EF-S 17-85mm f/4-5.6 IS USM Lens

Product Summary


A slightly slower than the EF-S 17-55mm f/2.8 IS lens, the EF-S 17-85mm f/4-5.6 IS USM is a lens that is designed for smaller cropped sensor Canon DSLRs. It has the same effective focal length range as a 28-135mm lens would have on a 35mm camera. It features Canon’s Image Stabilization (IS) system which allows the lens, mounted on a DSLR, to be hand-held for shooting at up to three stops slower shutter speeds than normally is possible. This practically eliminates the need for a tripod for most cases.

The 17-85mm f/4-5.6 has a total of 17 elements arranged in 12 groups. The diaphragm of the lens is made up of 6 rounded blades. The lens features Canon’s ring-type USM (Ultra-sonic motor). This essentially makes the lens a good deal quieter when focusing. It also has FTM (Full-time manual focusing) which means it is possible to fine tune the focusing even when the auto-focusing is engaged. All one needs to do is to turn the focusing ring.

The lens can focus as close as 1.1’ (0.35 meters). This lens is not exactly best used as a micro lens. However for every other real requirement the Canon focuses very fast.

The build quality of the lens is not something to be too proud of. It is almost entirely made out of plastic. The mount of the lens is however metal. The lens takes a filter of 67mm. The dimensions of the lens are 3.1″ x 3.6″ and it weighs a reasonable 475 grams. Available at Amazon | AdoramaB&H

Sample Images by Canon EF-S 17-85mm f/4-5.6 IS USM on Flickr

Product Images

Canon EF-S 17-85mm f:4-5.6 IS USM Lens

Canon EF-S 17-85mm f:4-5.6 IS USM Lens-c

Canon EF-S 17-85mm f:4-5.6 IS USM Lens-b

Canon EF-S 17-85mm f/4-5.6 IS USM Lens

Canon EF-S 17-85mm f/4-5.6 IS USM Specifications

35mm film equivalent focal length27-136
Angle of viewH:68º 40′ – 15º 25′, V:48º – 10º 25′, D:78º 30′ – 18º 25′
Construction (elements/groups)17/12
No. of diaphragm blades6
Min aperture22-32
Closest focusing distance (m)0.35
Max magnification (x)0.20 (at 85mm)
Distance informationYes
Image stabilizer3-steps
AF actuatorUSM¹
Filter Size (mm)67
Max. diameter x length (mm)78.5 x 92
Weight (g)475
Magnification – Extension Tube EF12 II0.43 – 0.14
Magnification – Extension Tube EF25 II0.72 – 0.33
Lens hoodEW-73B
Soft caseLP1116
Extenders EF1.4x II and EF2x IINot compatible


More Info

Canon Camera Museum

Purchase options

EF-S 17-85mm f/4-5.6 IS available Amazon | AdoramaB&H