Canon EF 28–105mm lens
The Canon EF 28–105 mm f/4–5.6 is an inexpensive zoom lens often included as a kit lens with Canon 35 mm single-lens reflex cameras. 28–105 mm is a standard wide to telephoto zoom range. The Canon EF 28–105 mm f/3.5–4.5 USM is a higher quality zoom lens with a better build quality. Currently every version of this lens is discontinued. Some versions of the lens may include the word macro or a flower icon which indicates macro capability, however due to the 1:5.2 image magnification ratio it cannot be considered as a true macro lens.
EF 28–105mm f/3.5–4.5 USM
This lens is a well-regarded consumer-grade lens. Its focus motor is ring USM, resulting in quick and quiet autofocus operation; this motor also allows the lens to offer full-time manual focusing. The lens uses internal focusing so the inner lens barrel does not rotate when focusing. This lens uses a "duo cam" type zoom barrel, this allows a more compact design, but still does not rotate while zooming.
This duo cam type zoom barrel is illustrated with the following two pictures:
- Lens at 28 mm
- Lens at 105 mm
There are three versions of this lens. The original lens has a five-blade diaphragm and was manufactured in Japan until 1999.[1] The second version (from 1999-2002) featured an improved 7 blade aperture with metal replacing plastic on many of the zoom components and "MACRO" instead of a flower marking the side. There was no "II" marking on the bezel yet, but "LENS MADE IN JAPAN" was clearly stamped on the opposite side of the bezel.[2] The Japanese version is considered the most collectable, as it was still manufactured in their primary lens factory in Japan. The third version (from 2003-2010) was manufactured and assembled in Taiwan with a 7 blade aperture, MACRO on the side, a textured case, "II" added to the description on the bezel. "Made in Taiwan" was stamped on the base of the lens. There was a final variation during the last 3 years of production where they replaced all of the gold lettering on the case with all white lettering (to cut costs).
EF 28–105mm f/4–5.6 USM
These are two inexpensive versions of the 28–105mm, cosmetically similar to the EF-S 18–55mm or the 90–300mm lenses which have the characteristic rubber grip on the barrel.[3] While retailing for around $100 less, these lenses have a decreased f-stop range and cheaper build quality (with a chrome-plated ring). The first 4–5.6 version has a DC motor for autofocus, while the second version uses a micro-USM, instead of ring USM that the 3.5–4.5 models use.
Specifications
Attribute | f/4.0–5.6 | f/3.5–4.5 |
---|---|---|
Image | ||
Image stabilizer | No | |
Ultrasonic Motor | Yes | |
L-series | No | |
Diffractive Optics | No | |
Macro | No | |
Maximum aperture | f/4.0-5.6 | f/3.5-4.5 |
Minimum aperture | f/22-32 | f/22-29 |
Max. magnification | 1:5.2 | |
Weight | 0.46 lbs. / 210 g | 0.83 lbs. / 372 g |
Diameter | 2.6" / 6.7 cm | 2.8" / 7.2 cm |
Length | 2.7" / 6.8 cm | 3" / 7.5 cm |
Filter diameter | 58 mm | |
Horizontal viewing angle | 65°–19°20' | |
Diagonal viewing angle | 75°–23°30' | |
Groups/elements | 9/10 | 12/15 |
# of diaphragm blades | 6 | 5 or 7 |
Closest focusing distance | 1.57' | 1.6' |
MSRP | $140 | $230 |
References
- ↑ Canon Inc. "EF28-105mm f/3.5-4.5 USM". Canon Camera Museum. Retrieved 2016-05-17.
- ↑ Canon Inc. "EF28-105mm f/3.5-4.5 II USM". Canon Camera Museum. Retrieved 2016-05-17.
- ↑ Canon Inc. "EF28-105mm f/4-5.6 USM". Canon Camera Museum. Retrieved 2016-05-17.
External links
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