Canon 70-300mm f/4.5-5.6 DO IS USM AF Reviewed
Looking for a versatile lens? You may want to check this out.
PopPhoto.com has a review on Canon’s 70-300mm f/4.5-5.6 DO IS USM AF and its quite unique.
One of only two lenses that contains both refractive and diffractive glass elements, this image-stabilized tele zoom is dramatically more compact — and expensive ($1,143, street) — than its refractive-only Canon ($549, street) or Nikon ($479, street) counterparts. Unlike more common refractive optics, diffractive optical design is based on how light rays bend when forced to move around (not through) an obstruction — in this case, a pattern of molded, sawtooth, Fresnel-like, concentric circles. A full-frame lens, it scales up to a 105-450mm on Canon EOS Digital Rebel models.
And PopPhoto.com is quite pleased with the results.
Willing to pay to travel light and save space? You won’t be disappointed with this remarkably bulk-free, satisfyingly sharp, full-frame, stabilized tele zoom.
How small is this lens? Check this out: