A full-frame Image Stabilizer, the Canon 28-135mm f/3.5-5.6 IS ($410, street) is sold both separately and as part of high-end Canon EOS 30D and 40D kits (adding only $200). We tested it years ago as a full-framer, but we wanted to see how it performs on the 40D's APS-sized sensor.
As noted in our original test (June 1998), the lens is bulky for its class, handsomely finished in matte black, with finger-friendly zoom and focusing rings. Turning action is adequate. And we still find the AF motor eerily silent.
IN THE LAB