An overview of the most interesting Canon EF lenses (Macrophoto lenses are described in a different page.)
A free Canon Singapore App for Apple iPhone and iPad that features detailed lens specifications of all Canon EF and EF-S lenses sold in Singapore. The application also contains a unique interactive simulator that allows you to compare the field of view of two camera-lens combinations whereby the cameras and lenses can be any Canon EOS digital SLR and lens. iTunes Preview
Canon has released the EF 8-15mm f/4 L USM, the world's first fisheye zoom lens to offer both 'circular' and 'full frame' images. This replacement for the EF 15mm F2.8 fisheye will produce circular images with a 180 degree angle of view when used at its widest setting on 35mm-format cameras such as the EOS 5D Mark II, and images which cover the full sensor area at 15mm. It also incorporates marks at intermediate zoom positions denoting the widest settings which can be used on APS-C and APS-H format cameras to give full frame images without vignetting. The lens features weatherproof construction, including water-repellant Fluorine coating on the front and rear elements, and Canon's Sub-Wavelength Structure Coating to minimize flare and ghosting.
Canon has released the EF 70-300mm f/4-5.6L IS USM, aimed at being an affordable 'L'-grade telephoto lens. It offers a ring-type ultrasonic autofocus motor, weatherproof construction, claimed four-stop image stabilization and a minimum focus distance of 1.2m, all in a package about the same size as the existing EF 70-300mm f/4-5.6 IS USM. Additional features include an 8-bladed circular aperture, full-time manual focus override, and an optional tripod mount ring.
Canon announces the launch of two new tilt and shift lenses, the Ultra-Wide angle TS-E 17mm f/4L and the TS-E 24mm f/3.5L II, an upgrade to the popular TS-E 24mm f/3.5L.
The TS-E 17mm is the widest-angle tilt-shift lens available on the market. It has the new "Subwavelength Structure Coating" treatment - iontroduced with the new EF 24mm f/1.4 L II USM lens - to minimise flare and ghosting, as well as a new tilt-shift knob for easy operation.
With a wide-angle 24mm focal length, the TS-E 24 is a tilt-shift lens from Canon which corrects distortion in architectural and specialist photography.
The EF 24mm f/1.4 L II USM, upgrade of the popular 24mm, is the brightest wide-angle lens by Canon. Compared to the original version it has a new optical design, for a better quality, and the Subwavelength Structure Coating treatment to reduce flare. Also improves the built quality and the autofocus is faster and quieter.
The EF 70-200mm f/4L IS USM is a lightweight, compact L Series telephoto zoom lens with Image Stabilizer. The optical Image Stabilization in the new EF 70-200mm f/4L IS USM lens provides up to an incredible four stops of shake correction-a first for Canon IS lenses. The use of fluorite UD lens elements provides excellent optical performance in terms of resolution and contrast. These features, together with its water-and dust-proof construction, provide both the performance and portability to meet user demands.
Lens review: The Digital Picture.
Canon announced the new EF 28-300mm f/3.5-5.6 L IS USM lens. This new lens provides almost 11x zoom from a wide angle 28 mm and also adds Image Stabilisation (IS).
The lens incorporates Canon's renowned Image Stabilisation (IS) Mode 2 technology: during major movement in a single direction, IS automatically determines that the movement is conscious panning and halts correction in the relevant direction, thereby preventing shake-return. The system automatically detects a lack of movement/vibration in order to preventing errors during tripod use.
The inner focusing ring-type ultrasonic motor (USM) delivers high-speed, high-precision, super efficient and virtually noiseless autofocusing, with good holding torque for rapid response, accurate stopping. Full-time manual override without damage to the autofocus mechanism is featured.
22 lens elements in 16 groups offer low distortion, high corner-to-corner resolution throughout the entire zoom range. As with all EF lenses, aperture is controlled with an EMD (electromagnetic diaphragm) for fast, quiet, highly precise control and incorporates a circular aperture diaphragm for beautifully pleasing background blur, from full aperture to two stops down. The use of 3 Ultra-low Dispersion (UD) glass elements effectively curtails the residual chromatic aberrations that can plague lesser quality long lenses, while aspherical elements correct various kinds of aberration that occur during zooming to give the lens the unsurpassed clarity and resolving power that are the hallmark of professional L-series lenses.
Canon announced the new EF 70-300mm f/4.5-5.6 DO IS USM zoom lens, the first zoom lens ever to use Diffractive Optical (DO) elements. These new elements, seen previously only in the 400 mm f/4.0 DO lens enable this 4.2x telephoto zoom lens to measure less than 10cm long at the 70mm position.
The zoom features a zoom ring locking mechanism, locking the lens at its shortest total length. This helps to protect the lens from potential damage by preventing the zoom elements extending under their own weight.
The lens incorporates Canon's renowned Image Stabilisation (IS) technology, compensating for approximately three stops without any perceptible increase in image blur when shooting static subjects or panning. The IS mode-2 system automatically detects lack of movement / vibration to prevent operation errors when a tripod is in use.
A rear focusing ring type USM, high-speed CPU and new AF algorithms combine to give the lens extremely fast auto-focusing. Full-time manual focus correction is featured, removing the possibility of damage to the autofocus mechanism during manual focus.
The first lens featuring the DO technology will be the 400mm/4.0 DO IS USM, waited for the first half of 2001. The lens will be equipped by the new diffractive optic element, that allows the correction of the aberrations either chromatic and spherical, and the decreasing in the dimension of the lens. Also conserving the optical quality of the precursor, the new 400/4 DO will be smaller (26% shorter) and lighter (36% lighter).
For citation purposes
Gian Luca Agnoli, Chrysis.net PHOTOGRAPHY, URL: http://www.chrysis.net/photo.