However, the 24-70mm has a bigger maximum aperture at f/2.4, while the 24-105mm is only at f/4. When to Use the Canon 24-70mm. You can use the Canon EF 24-70 in various photography niches, including portrait, travel, event, and real estate photography. The wide aperture values allow capturing the best available light for well-lit interiors and has a silent focus motor built into the lens. Canon RF 24-105mm f/4L IS USM. Sigma 24-70mm f/2.8 DG DN Art. Lenses with built-in focus motor focus faster and more quietly than lenses without a focus motor which rely on the camera's body focus motor. minimum focus distance. Just to make it really interesting, I’ll also add our sharpest 24mm lens, the Canon TS-E 24mm f/3.5L II (but remember, we’re comparing it at f/3.5 to the 24-70 at f/2.8). We also checked distortion at both ends. The Mk II has 2.45% barrel distortion at the wide end, 1.34% pincushion at the long end. It has the IS of the 24-105 and the 24-70 f/4 lenses and the f/2.8 aperture of the 24-70 len in one package, and its focal length range is ideal for many cropped sensor shooters, extending from what might be termed “normal wide” to “portrait length” short telephoto. The lenses in this article are available from site sponsor B&H Photo: But, for a while, I shot with the 24-70mm F/2.8 and liked it very much. Tough as nails, fast and quiet. But, I eventually started shooting more events with two bodies and I found the 17-40 F/4 L and the 70-200 F/2.8L to make more sense. The extra wide angle really did help. However the tilt in my copy @ 50mm makes it actually worse than the f/4 for the left edges. The f/2.8's left-edge @ 50mm remains noticeably softer than its right edge up to and including f/8 (not shown). Presenting both 100% crops and 200% crops (resized in PS using Preserve Details 2.0) Nikon Z 24-70 f/2.8 vs f/4, 100% Crops. Nikon Z 24-70 f/2 Nikon was right. Nikkor 24-70 f/2.8 S on Nikon Z7. The Nikkor Z 24-70 S is a lens that shows Nikon’s attention to detail on the design table. From the tapering of the lens, to the ring layout The first telephoto lens of choice, especially recommended for beginners, is the 135mm F2.5 SMC Pentax. This lens has the Pentax K bayonet mount, and requires the K-EOS adapter for attachment to Canon EOS cameras. When the aperture is stopped down to 37mm using step-down filter rings, this lens produces incredibly tiny pinpoint star images from RF0t.