Canon 24 70 f2.8L review
Canon EF 24-70 f2.8L USM this lens is not the newest 24-70 f2.8L II USM, which is not a subject of this review.
Focal length: 24 – 70mm
Close focus distance: 39 cm
Weight: 950 g
Dimensions: 83×123 mm
Filter size: 77mm
If I think about one lens solution or general purpose lens, this lens is an obvious candidate, with the Canon 24-105 is usm. This lens with it’s f2.8 aperture is an obvious candidate for internal photography such as weddings, parties, concerts, etc. The lens’s strong point is consistent results, versatility, build quality, silent focus. The Usm autofocus is silent, but not the quickest compare to lenses such as 135 f/2L or 200/ f2.8L. Compare to a Tamron 17 50 the lens is huge in both dimension and weigth as well. The lens sharpness and contrast are not mind blowing, but consistent through the focal lengths and has nice colours. The lens has not constant physical length, the lens’s shortest state is the longest focal length, see picture above, when is extended that is the widest focal length. In usage point of view the opposite would be logical – zooming from wide to long focal lengths, but perhaps this helps the optical qualities.
I very much interested about this lens as a potential candidate for a wedding photography. The lens is designed for a Full frame camera, with a sensor size of 36x24mm. I intend to use it on an Aps-C camera where the field of view is 39-112 mm. On a native situation on FF camera this lens has quite wide-moderate telephoto focal length. On APS-C the focal length is not very wide-short telephoto. The longer end of the lens is good for portraits. Let’s check: Portrait at f3.2 with the Canon 24 70 f2.8L USM no post processing, just cropping.
I would say I am very much satisfied with the result. The 70mm is the weakest focal length of the lens, end at f3.2 the portrait is perfect to my eyes. I also made a portrait at f2.8 but the picture were softer either because of focus problem or lens sharpness/contrast capability.
The lens’s sweet spot/sharpest aperture is f5.6 at both end of the focal length.
The lens’s f2.8 constant aperture helps to create a nice background blur. The below picture are made with an Aps-C camera body (Canon 30D) perhaps the blur is not the same on the FF camera because of different focal length/sensor size situation.