Conclusion. The Canon EF-S 24mm f/2.8 STM lens, like Canon's other pancake lenses, is mostly defined by what it isn’t. It isn’t super wide-angle or telephoto, it doesn’t let you zoom, and it doesn’t have a super-wide maximum aperture like most of Canon’s most esteemed prime lenses. As an EF-S lens, it's also incompatible with Canon Brightin Star 28mm F2.8 Micro-Pancake Review 7Artisans 35mm F0.95 Review and Images Canon EF-S 24mm f/2.8 STM Lens Review Canon RF 24mm F1.8 Macro IS STM Review The ES-52 Lens Hood from Canon is designed to fit the Canon 40mm EF f/2.8mm STM, EF-S 24mm f/2.8 STM, and EF-M 18-55mm f/3.5-5.6 IS STM lenses. Lens hoods offer protection from unwanted light entering your lens and causing glare, especially when shooting toward your light source. They also offer a degree of physical protection for your lens The physical dimensions of the 12-24 ART are very similar to the chief competitor (the Canon 11-24mm), which is 4.3”/109.22mm x 5.2”/133.8mm and weighs 2.6lb/1180g. Fortunately the Sigma doesn’t copy the Canon’s eye-watering price tag of right under $3000 USD, although the $1599 USD price tag definitely takes the ART series to a new 2. Canon now makes two pancake lenses for the EOS mount. Both are just slightly wider than "normal", f/2.8, metal builds, and come with the STM focus motor. Both have reviewed quite well for sharpness and overall image quality; see the-digital-picture.com reviews for the 40/2.8 and the 24/2.8. The EF 40mm f/2.8 STM is for full-frame cameras. The Canon EF 40mm f/2.8 STM has a great autofocus. But it has very limited manual focusing capabilities. Its autofocus system is quick and very accurate. And it’s responsive in very low light, too. It’s better than you’d expect from an f/2.8 lens and better than the EF 24-70 f/2.8 II zoom lens at 40mm. Today's question from Cory S. is, "What’s your thought on using a DSLR with a pancake lens?"Go to http://www.AskDavidBergman.com to submit your own photo que The 18mm of the Fake Leica brand is all plastic, it seems like a toy. You can still achieve good work with that lens but the price is crazy. I am selling it if you want it. The Canon 24mm pancake lens is made in Malaysia, it is all plastic but the price is cheap and the results are great. DmuLT.