Canon EF 28–80mm lens

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Canon 28–80mm f/3.5–5.6 USM

The EF 28–80mm f/3.5–5.6 is a zoom lens produced by Canon Inc. for their series of EOS single-lens reflex cameras. Canon produced eight iterations of the lens from 1989 to 1999.

The other 28–80mm lens is the Canon EF 28–80mm f/2.8–4L, which was an EF mount wide-to-normal zoom lens introduced by Canon in April 1989. Being of the "L" class, it is of completely different design and structure than the aforementioned 28–80mm f/3.5–5.6 lens.

Description[edit]

The 'L' lens is identified by a red stripe round the lens barrel. It is a totally separate classification of lens, much larger and up to three times heavier, sharing very little if any features with the non-L versions. The L version is considerably faster, with an aperture range of f/2.8–4.0 (as opposed to f/3.5–5.6). Unlike newer L-series lenses, it is not a constant aperture lens; the maximum aperture of this lens varied with the zoom (f/2.8 @ 28 mm, f/4.0 @ 80 mm). This lens predates the lower cost, non-L versions and production of this version ended in approximately 1996.

The first iteration of the f/3.5–5.6 ("USM" in the chart below) non-L lens is identified by the metal mounting ring and DoF window. The initial USM version, while much smaller and lighter in weight than the L version, is considerably larger and heavier than later versions due to the internal optics and the use of larger but quieter and faster ring motor USM. Production of the first version ended in (approximately) 1995. This lens is unique in the 28–80 mm f/3.5–5.6 series.

USM versions II through V deleted the DoF window and are considerably lighter in weight and smaller in diameter. They retain the USM feature albeit with a lower-cost, slower but more compact micro-motor version. They share more in appearance with their non-USM siblings, as the body shape and weight are more like the non-USM than the first USM version. The USM II through V versions also incorporate a plastic lens mount.

All USM lenses (including the L version) support FTM, or auto focus override. The USM (ring motor or micromotor) feature is signified by the gold "Ultrasonic Motor" text wrapped around the barrel of the lens on non-L versions. The original lens cap also says "Ultrasonic" although caution is advised as lens caps are often swapped and should not be counted upon as indicative of the actual lens' features.

Lower cost non-USM versions ("Original" and "II" in the chart below) were produced as well. A lower-cost drive system replaced the USM auto-focus system and therefore these lenses do not support FTM. AF action is considerably slower and noisier than USM versions. Lenses such as these without FTM focusing can be damaged if the focus ring is turned by hand while the lens is in the AF mode. Like the USM II-V versions, these non-USM versions have a plastic mounting ring and delete the DoF window.

All variants of the non-L 28–80 mm lens were included at times as kit lenses.

Table[edit]

Canon EF 28–80mm lens
Attribute L (original) USM II II USM III USM IV USM V USM
Key features
Image stabilizer No
Environmental Sealing No
USM Yes No Yes No Yes
L-series Yes No
Diffractive Optics No
Technical data
Maximum aperture f/2.8–4 f/3.5–5.6
Minimum aperture f/22 f/22–38 f/38 f/22–38 f/38 f/22–38
Filter diameter 72 mm 58 mm
Horizontal viewing angle 75°–30°
Vertical viewing angle 46°–17°
Diagonal viewing angle; 65°–25°
Physical data
Weight 945 g 200 g 330 g 200 g 205 g 200 g
Max. Diameter 84mm 66.4mm 72mm 66.4mm 63.5mm 65mm 66.4
Max. Length 119.5mm 71.2mm 72.5mm 71.2mm 68.5mm 63.5mm 61.4
Groups/elements 11/15 10/10 9/10 10/10 9/9 10/10
# of diaphragm blades 8 5
Closest focusing distance 0.5 0.38 0.5 0.38
Retail information
Release date April 1989 September 1996 October 1991 April 1999 October 1993 August 1995 September 1996 April 1999
MSRP (yen) 160,700 yen (overseas) 42,000 yen (overseas) 30,000 yen

External links[edit]