Canon has the stabilized EF 16-35mm 4.0 L IS USM from 2014 (980 EUR) and the EF 16-35mm 2.8 L III USM from 2016 with a street price around 1950 EUR. Tamron offers the stabilized 15-30mm f2.8 Di VC USD for about 1100 USD / 950 EUR. Its widest angle of view is 110 degrees but it lacks 5mm on the long end of its zoom range. Also DXOmark tests ( with 5D3 ) indicate for the EF 35mm f1.4 L II, a T stop of T 1.7 the EF 35mm f2 IS a T stop of T2 . Very little actual light transmission difference. For the f1.4 L II lens the sharpness is 18 mp. For the f2 IS lens the sharpness is 20 mp. Slightly better for the f2 lens. For the f1.4 L II the vignetting is 2.2 ev. UmCXz. f/4.0，此时16-35mm f/2.8L III镜头达到最佳光圈——其实对于一支超广来说这个设定有点可怕，这也许意味着以后要获取极限画质，景深合成已经成为了一门必不可少的技术。. II代老款镜头中心解析力提高明显，但边缘仍然没能跟上。. f/5.6，III代镜头中心画质开始 When you buy a high-grade f/2.8 max aperture lens, you want great image quality at that wide aperture. In the not-too-distant-past, ultra-wide-angle zoom lenses showed good reason to stop down by one or two stops. Then came the Canon EF 16-35mm f/4L IS USM Lens and Canon EF 16-35mm f/2.8L III USM Lens, two extraordinary-performing models. As Sample; Color mode or Image mode; Canon EF 16-35mm f/2.8L III USM: Canon: 6.9/9.9: Canon EF-S 55-250mm f/4-5.6 IS STM Canon: 5.2/8.3: 24-70 f2.8 L II; 16-35 f2.8 L III; 16-35 f2.8 L III and retain the old 24-70 f2.8 L Series 1, in case it's worth it !) Thanks. K. The 16-35 / 4L IS is much smaller, lighter, and less expensive than the 16-35 / 2.8L III and for landscape photography, you'll likely be at f/5.6 or higher f-numbers. Sample Images. The thumbnails below link to full-sized samples taken with the Canon EF 16-35mm f/2.8L III USM lens mounted to a Canon EOS 5D Mark IV. Expert review of the Canon EF 16-35mm f/4L IS USM lens.

canon ef 16 35mm f 2.8 l iii usm samples