WebThe EF 17-40mm f/4L USM acts as an ultra-wide angle zoom on film or full-frame digital EOS cameras. On DSLRs equipped with APS-C sized sensors it acts as a standard zoom, giving an angle of view equivalent to a 28-70mm lens on a full-frame camera. Close focusing. Minimum focusing distance is just 28cm throughout the entire zoom range. WebNov 3, 2005 · The Canon 17-40mm f/4 L is a high quality lens with a full-frame image circle that showed really exceptional performance on the EOS-20D we used to test it with.

Canon EF 17-40mm f/4L USM Lens Review - The-Digital …

WebApr 1, 2024 · Geneoh recommended the Canon EF 17-40mm f/4L USM lens noting it was one of the cheapest, but most useful, Canon lenses. He was spot on. For an investment of only about $650, you get a long-lasting, durable, great optic lens that is useful in countless scenarios. The Canon EF 16-35mm f/2.8L III USM version costs closer to $1,900. WebOct 12, 2010 · Even when shooting directly into the light, the 17-40mm f/4.0L USM seems quite resistance to flare and loss of contrast. A large scalloped hood is provided to provide protection from extraneous ... deaths organ donation waiting

Lifetime Review of the Canon EF 17-40mm f/4L USM Lens

WebCanon EF 17-40mm f/4L USM lens review: Popular high-performance option Introduction Introduced in 2003 the EF 17-40 f/4L USM was one of the first of the lightweight pro-level L-series zooms from the firm adopting a constant f4 aperture. Not only does that make the lens relatively small and more portable compared with the f2.8 varients, but it ... WebOptical coatings optimized for digital cameras Close focus to 11 inches Super UD and three Aspherical lens elements ensure superior image quality Dust- and moisture-resistant, … WebSpanning a versatile wide-angle range, the EF 17-40mm f/4L USM Lens is a Canon L-series zoom featuring a constant f/4 maximum aperture along with a sophisticated optical … genetic screening for pregnant women