Lens Reviews

Canon offers five different 70-300mm zoom lenses in its product lineup. Why so many? They obviously think this is a popular and practical focal length range and I happen to agree. I even own one of them myself—the EF 70-300mm f/4-5.6 IS USM—but the EF 70-300mm f/4-5.6L IS USM tested is the mac daddy of ’em all. Part of the reason for its high price tag ($1599) is that it’s the only one of the five lenses that is resplendent in white paint (the better for TV cameras to see), making it part of the “L” series. (See “Just For The ‘L’ Of It.”) Canon’s L lenses typically have wide apertures fixed throughout the zoom range but in this case all five lenses in this focal length range have identical f/4-5.6 apertures.

The new Canon EF 70-300mm f/4-5.6L IS USM telephoto zoom lens features two Ultra Low Dispersion (UD) elements for improved image quality and reduced chromatic aberration. It incorporates a floating focusing mechanism for sharpness from close-up (3.9 feet) to infinity plus an Image Stabilization (IS) system that Canon claims increases usability by approximately four stops. The IS system includes a function that allows it to continue to operate even when the camera or the lens, the latter being a better idea, is mounted on a tripod. There’s an optional ($189.95) Canon Tripod Mount C for mounting on a tripod or monopod but I was unable to get one for testing. The lens is dust- and water-resistant and features a Fluorine coating that resists smears and fingerprints and significantly eases lens cleaning, but that doesn’t make me suggest less vigorous lens protection. More later.

Tamron has always been a pioneer in the do-everything zoom lens category and their new AF18-270mm F/3.5-6.3 Di II VC PZD lens is no exception. Don’t be intimidated by those initials—it’s all good stuff—and I’ll get to them shortly. The 18-270mm F/3.5-6.3 is part of Tamron’s Di II family of lenses that are engineered specifically for digital SLRs with image sensors measuring 24x16mm, typically referred to as APS-C. The sensor size of the Canon EOS 50D I tested the lens with measures 22.3x14.9mm so I guess that’s close enough. The 15x zoom range of the lens provides a 35mm focal length equivalency of 28.8-432mm with the Canon EOS 50D’s 1.6x multiplication factor, but that will be slightly different for the Nikon and Sony versions that are also available. Shooting full frame? Check out Tamron’s Di lens series for 35mm film cameras or digital SLRs featuring larger (24x36mm) sensors.

When it comes to lenses, the name Carl Zeiss is synonymous with optical perfection or as they say around the Hallmark store, “when you care enough to shoot the very best.” Zeiss continues to expand its line of interchangeable lenses for Canon, Nikon, and Pentax cameras to include two new wide-angle lenses, the Distagon T* 18mm f/3.5 and Distagon T* 21mm f/2.8.

The...

The new Tamron SP AF17-50mm F/2.8 XR Di II VC LD Aspherical (IF) joins a growing community of wide-zoom lenses. In contrast to an earlier version of this lens, which is available in several mounts, this APS-C Tamron optic (designated Model B005/$649 street price) is only available in Nikon DX (with built-in motor) and Canon mounts. Given that I mated this lens to a Nikon D300, that effectively...

Nikon’s entry into past universal 80-200mm f/2.8 lenses started back in 1978 with a manual focus, push-pull lens checking in at 4 lbs. Ten years later the autofocus model arrived sporting ED (Extra-low Dispersion) glass; ’92 marked the “D” package. In ’96 the AF-S version came along, followed by the new generation of front motor drive “G” models. Now we...

If, like many Shutterbug readers, you have a film SLR camera plus several interchangeable lenses, you might be wondering if you can use those lenses with your new D-SLR camera of the same, or even different, brand.

Long considered the focal-length sweet spot for macro work, the 60mm focal length of the new Tamron 60mm f/2 lens ($569 MSRP) converts out to 96mm for Canon and 90mm for Nikon APS-C D-SLRs.