Options. 02-13-2017 01:34 AM. Any of Canon's 70-200mm lenses can blow the socks of off a standard 75-300 camera kit lens. Canon makes 4 versions of the lens, and all are constant aperture lenses, f/4 and f/2.8. There are versions at each aperture with and without IS. The versions with IS are weather sealed, while the non-IS versions are not. p.1 #5 · p.1 #5 · Canon 70-200 f/4 vs. 2.8 IS bokeh. 85 1.8 is a very good lens for portraiture and bokeh out of that is awesome. Now regarding 2.8 v 4 IS. 2.8 Has more blur (not neccessarily better) than 4. But with good choice of background and focal length you can get very nice bokeh from 4IS. Re: Canon 70-200 IS f4 vs f2.8 I & II. In reply to rsdofny • Feb 23, 2011. First, both the f4 IS and both of the f2.8 IS lenses offer fantastic optics, superior build, and first rate performance. Any "which is better" in these regards is going to splitting hairs at most and inconsequential at the least. The optical path of the new Canon EF 70-200mm f/4L Mk II has now been completely redesigned in the new lens, to improve image quality and reduce the minimum focus distance from 1.2m to 1.0m. A top-quality fluorite glass element teams up with two UD (Ultra-low Dispersion) elements, aiming of boost sharpness and contrast, while still reducing Canon 24-105 vs 70-200 f4 is. Jul 4, 2013. I realize that this has been debated before, but my concern isn't so much about the IQ of the lenses. Just asking for some opinions so I don't have to purchase and resell lenses so much. (I currently own a 5d mark ii, Sigma 35 1.4, a 50 1.8-version 1, a broken 17-40 and a 480exII)
The Tamron 70-200 VC has noticeably better image quality than the Sigma 70-200 OS at f/2.8. The differences are less noticeable at f/4, but the Tamron remains the image quality leader except at 200mm where the Sigma performs better in the corners. You buy a 70-200 f/2.8 to use at f/2.8. Otherwise, buy a Canon EF 70-200mm f/4 L IS USM Lens. It
The bokeh on the f/2.8 is obviously much better however the f/4 lens’ bokeh is also quite nice. Keep in mind that focal length factors into how the bokeh looks as well. Longer focal lengths make
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