Review on Ultra Wide Angle Zoom Lens for SLR Cameras - Canon EF 17-40mm f/4L USM by Siu ᠌

I use this glass as a second lens and exclusively as a landscape lens. It is difficult to use as a regular one due to short adjustments with the absence of a stub and wide-angle with inevitable distortion, and in this case it is quite pronounced. The glass is essentially of very high quality, the internal focusing is real - nothing leaves or rotates. Included is a standard L-shaped set of a hood and a sock like a cover. With an increase in shutter speed, shooting without a tripod looks like a dubious undertaking (there is no stub). When choosing a light filter, you should pay attention to its (light filter) thickness, because. due to the wide angle of the lens, there may be problems with thick specimens. I do not recommend it as a staff member due to "short-stroke", distortion and "stabilitylessness".