Canon1740f4lreview

The17-40mm f/4 and 16-35mm f/2.8 work great on the 1.6x sensor cameras (Rebel, 30D, 20D), but for those cameras the 18-55mm EF-S lens, for one sixth the price, ...

At 475g, the EF 17-40mm f/4L USM is the lightest zoom on Canon's “L” lineup, and a pleasure to use with any camera body. It balances well with full frame ...

2004年1月5日 — Utilizing Ring USM, the Canon EF 17-40mm f/4L USM Lens focuses very fast, quietly and accurately. The focus and zoom rings are nicely sized, ...

2011年11月11日 — Like all 'L' lenses, the EF 17-40mm's zoom and focusing rings also feel much smoother and more tactile than the EF-S models which makes them ...

The 17-40 f/4 is an excellent lens, remarkably so on the 20D. ON the 5D, while it's still excellent, some significant softness appears in the corners when ...

2020年4月1日 — 1. First, the Canon EF 17-40mm f/4L USM lens' images tend to be soft on the edges. As with most wide angle lenses, as you get closer to the edge ...

The EF 17-40 features an Ultrasonic focus motor which is both quiet and very fast. At all focal lengths and in most lighting conditions, the 17-40 locks focus ...

2019年6月10日 — This lens and Canon's 70-200 f4L were a revelation at the time - good IQ, excellent build, and a very reasonable price. The 17-40 f4L offered ...