Canon calls this the RF135mm f/1.8 L IS USM: RF: Works only on Canon's EOS-R Mirrorless cameras. L: Expensive as L. IS: Image Stabilization. USM: UltraSonic (autofocus) Motor. Optics specifications top. Canon RF 135mm f/1.8 L IS USM Internal Optical Construction. UD elements. IS section. 17 elements in 12 groups. News Reviews Articles Buying Guides Sample Images Videos Cameras Lenses Phones Printers Showcase Forums Canon EF 24-70mm f/2.8L USM Specs. Announced Sep 29, 2002 The Canon EF 24-70mm f/2.8 USM L is an impressive zoom lens upon first contact but it stayed somewhat short of the high expectations with respect to its optical characteristics. It can certainly produce sharp images if you know how to handle it but the pronounced field curvature at the wide end is a faux-pas which can often spoil the game. Verdict. The Canon EF 24-70mm f/4 USM L IS is a difficult being with a great technical performance and a worrisome focus characterstic. It is certainly capable of delivering a image quality that sometimes even surpasses its bigger in-house mate (EF 24-70mm f/2.8 USM L II). It is very sharp throughout the range with no significant weakness at Canon EF 24-70mm f/2.8 L II USM Sample Images. Ahead of our full review, here are 32 sample JPEG photos taken with the Canon EF 24-70mm f/2.8 L II USM lens, mounted on a Canon EOS 5D Mk III. The Canon EF 24-70mm f/2.8 L II USM is a premium constant-aperture standard zoom lens for full-frame DSLR cameras, retailing for £2299.99 / $2299.99. I shot my very first wedding with ONLY JUST THIS ONE LENS: the Canon EF 24-70mm f/2.8 L II USM! Read first, then scroll to the bottom to see images from my first ever wedding!!! I started blogging about the gear we use in our wedding photography business last week by explaining why the Canon 5D Mark III is my workhorse. As promised, I wanted to Good and I can positively report that the tested sample had a decent centering quality this time. The Canon EF 24-70mm f/2.8 USM L II is certainly one of the more mainstream professional grade lenses in the Canon line up and it surely continues the sales success story of its predecessor. On full format DSLRs it's a fast standard zoom lens The Canon EF 24-70mm f/2.8L II USM Lens is the best zoom lens of this type made. Period end of story. It is top of the mark. I wouldn't be with out it. The Canon EF 24-70mm f/2.8L II USM L and the Canon EF 70-200mm f/2.8L IS II USM Lenses go with me everywhere. If I have a camera in my hand most likely one of those is on it. We've just tested the new 50-megapixel Canon EOS 5Ds with Canon's best standard zoom lens, the EF 24-70mm f/2.8L II USM lens. Here are 56 JPEG and 56 Raw images taken with a final production version of the Canon EOS 5Ds DSLR camera with the Canon EF 24-70mm f/2.8L II USM lens. A gallery of sample images taken with the Canon EOS 5Ds DSLR camera I'd get my RF 24-105L IS USM at Adorama, at Amazon, at B&H or at Crutchfield, or used at eBay if you know How to Win at eBay. Name. Canon calls this the Canon Lens RF24-105mm f/4 L IS USM. RF: Works only on Canon's EOS-R full-frame mirrorless cameras. L: Expensive as L. IS: Image Stabilization. USM: Ultrasonic Autofocus Motor. Optics O19D.