Lens Reviews

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.

Fisheye optics are an unusual beast. The bulbous nature of the front element is one characteristic trademark, but the unique view this lens affords us is what makes it truly appealing—and at the same time challenging to work with.

My fisheye lenses have literally widened my view of the world around me and given me a new perspective on my photography. Admittedly, some...

When you talk about lenses these days you always have to bring in the multiplication factor, especially when you have a lens that fits comfortably on both so-called full-frame and APS-C sensor cameras. To know what angles of view you will have available you have to know: (a) that the lens is made for full-sized sensors (or not) so will work with the multiplication factor on smaller sized sensors...

Back in the day when prime lenses ruled supreme and snooty purists decried zooms for lack of absolute sharpness, Tele-Converters (TCs) were popular accessories. Photographers wanted to bring distant subjects closer, and TCs provided a means to that end. Also known as tele-extenders, these thick slabs of metal and glass increase the focal length of a given lens while also decreasing the f/stop.

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.

We have seen new options from independent and camera maker manufacturers alike, each bringing the fun and creative options of these unique angles of view to ever more affordable price ranges.