In the 70mm test results, I think you will notice the harsher blur quality that the Tamron lens produces. The Tamron 24-70 VC features a rounded 9-blade diaphragm. In the field, the Tamron 24-70mm f/2.8 Di VC USD Lens delivers very great image quality. When it focuses accurately, of course. It should be noted that the Tamron is both shorter and lighter than the Canon 24-70mm f/2.8 MK1 and roughly similar in size to the MK2. One positive for me is that due to the closer fit of the lens hood while reversed, the overall width of the Tamron for storage is slightly smaller than the 24-105L despite its larger front element.
Product description. Manufacturer description: This new lens does what many pros thought couldn't be done - replace the previous L-series 28-70 f/2.8 lens with something even better. Extended coverage to an ultra-wide-angle 24mm makes it ideal for digital as well as film shooters, and the optics are even better than before with two Aspherical
Gary Wolstenholme reviews the EF 24-70mm f/2.8L professional standard zoom lens from Canon. Canon EF 24-70mm f/2.8L USM: Handling and features Used Canon EF 24-70mm f/2.8 L II USM. The EF 24-70mm II is a comparatively "fast" lens thanks to its max. aperture of f/2.8. It's surely not as capable as tele prime lenses but you can achieve a quite shallow depth-of-field specifically at 70mm so let's have a look at the bokeh (out-of-focus) quality now. Out-of-focus highlights show a near-circular shape at large aperture settings Click here for the full-size image. The RF 24-70mm f/2.8L IS USM will be available in September, priced at $2,300 / £2,329.99. Canon is allowing retailers to set prices at their discretion in Canon EF24-70mm f/2.8L II USM review: A Peerless Performer. Introduction Billed as Canon’s professional standard zoom lens, the EF24-70mm f/2.8L II USM replaces the popular full-frame EF 24-70mm f/2.8L USM model, introduced in 2002. The new lens was developed to address some of the shortcomings of the previous model and so features a
The Tamron SP 24-70mm F/2.8 Di VC USD G2 is a second-generation standard telephoto zoom lens for Canon and Nikon full-frame DSLR cameras. This lens features a constant aperture of f/2.8 throughout the range, improved Vibration Compensation (VC) technology, a minimum focus distance of 0.38m, an ultrasonic focus motor for quiet and fast AF operation, and a moisture-sealed construction.

Product description. Sigma’s 24-70mm F2.8 IF EX DG HSM is a replacement for its older 24-70mm F2.8 EX DG Macro lens. This large aperture standard zoom is considerably more compact than its predecessor, thanks to a brand new optical design which features 14 elements in 12 groups, including three aspherical, one ELD and two SLD elements.

Sharpness alone does not make a good lens. Bokeh quality, not just quantity come into play as does sunstars, contrast rendering, and flare resistance. The 28-70 combined with those and f/2 access makes for dramatic shots. The sort of shots I got from the EF 24-70 f/2.8L II on a 5D III (my favorite color renderer) come to mind but having f/2. With both the Canon 6D and Canon 6D Mk II, the Tamron 24-70mm f2.8 Di VC USD is simple and accurate to focus with. In fact, for the first time I’ve found a lens that can autofocus well with the Resolution and 50% MTF are better in both the 28-70mm and the 24-70mm f/2.8L zooms than in the 28mm f/2.8 prime. 50% MTF is better in the 24-70 than in the 28-70. 50mm The 24-70 has better MTF performance than the 28-70 at f/2.8 and f/4. The 50mm f/1.4 prime outperforms the zooms at f/4 and f/5.6. 70mm After contemplating for a while, Which 24-70mm f2.8 lens to go with Sony a7riii, I concluded on Canon 24-70mm f2.8 mark ii, which has relatively better image quality. Not according to rigorous LensRentals tests and my own personal experience. I extensively shot the Canon 24-70mm f2.8 II on 5DSR's for two years and on the A7RII for a year.
The Sigma is heavier hand uses a bigger filter, but to my eyes the difference in output between a Sigma and a Canon L is pretty damned minimal, with the substantial cost saving being the deciding factor for me. I have Sigma's 18 - 35, 24-70 Art, 50 1.4 Art and an a slightly older 70-200 2.8. Sigma lenses are universally heavier than everybody
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  • canon 24 70mm f2 8 ii review