The L-series offers wider maximum apertures than other lenses. ![]() Sometimes this can mean in low light or even at night. Professional photographers are often forced to shoot in less than ideal lighting conditions. Accordingly, the L-series lenses feature liberal use of rubber sealing at interface areas, such as the lens-to-camera junction, external switches, and around zoom and focus rings to prevent water getting in and destroying the lens’ electronics. ENG-1 Thank you for purchasing a Canon product. It is equipped with an Image Stabilizer and can shoot close-ups up to 1:1 as well as normal shots. This means a rugged build quality that will endure the knocks of everyday use, and weather sealing to protect against every type of adverse conditions. The Canon EF100mm f/2.8L MACRO IS USM lens is a macro lens dedicated to Canon EOS cameras. A lens destined for professional use must be able to withstand the rigours of a professional photographer’s working life. Control ring can be de-clicked for a small fee at a Canon service center for aperture. Focus ring can be changed to fly-by-wire for follow focus work. ![]() Spherical aberration control ring allows you to control the bokeh. The constant f/2.8 aperture is great for video work. Optical performance is only half the story. The Canon RF 100mm f/2.8 L Macro IS USM is a useful portrait and macro lens. If it does not have this red ring, it is not part of the L-series lens range. To make sure you can easily identify these luxury lenses, Canon marks them with a red ring around the lens barrel. Canon uses three technologies in its L-series lenses to produce the sharpest, clearest pictures: fluorite elements, aspherical elements and UD optical glass elements. L-series lenses meet the requirements, and needs of professionals. ![]() It’s a full inch longer than the comparable EF-Mount lens and more than an inch longer than Sony’s E-Mount 100mm f2.8 Macro. They enable quick and silent auto focus of Canon Lenses. The Canon RF 100mm Macro is a bit long for a prime. Being ring-shaped, they are ideally suited to the shape of the lens barrel, their focusing speed is very controlled and they are stable across a wide range of temperatures, from -30°c to 60°c. Ring-type motors are highly efficient and feature a low power consumption to extend the camera battery life. The EF100mm f2.8L Macro IS USM features a single UD lens to provide the highest image quality possible. UD lens elements are used to correct for colour aberration and produce a high contrast image with good sharpness and definition. Ring USM for silent and high-speed AF, and full-time manual focusing also provided. A 3-group floating system results in excellent delineation at all focusing distances. Inner focusing affords a long working distance of 5.9in. : New firmware version 1.0.5.The EF 100mm f2.8L Macro IS USM lens could very well be the essential multipurpose lens for every camera bag due to its ability to capture sharp close-up images of small objects as well as beautiful portrait-length telephoto shots. The incorporation of Canon's Hybrid IS in this L-series macro lens allows it to compensate more effectively for camera shake during close-up shooting and marks a significant improvement for professionals and advanced amateurs utilizing macro photography for portrait, nature or wedding shoots. : Canon EOS R5 C training series is released. I can't tell you exactly where to look, but I don't doubt that one of the other regulars will be able to help you. And today it will be all about the Canon 100mm F/2.8 USM Macro Lens. Obviously this requires a certain degree of finesse, but the procedure has been described several times in the forum. The cure that often works is to forcibly manhandle it back into position. The usual cause is trying to focus manually while the lens is in AF mode. Magnification, 2:1 Filter Thread, 67mm Focus System, Manual. Unlike the situation with the OP's macro, this sounds like one of those cases where the autofocus motor got stuck. Aperture Blades, 9 (Canon), 7 (Nikon), 13 (Sony FE) Min. I didn't see any more replies and was hoping for an anserw since I have yet to find any others with the same problem. I hope it's okay to jump on someone else's post. It has recently started this and no matter if I'm using it for ring shots or portraits, good lighting or bad, it won't focus. ![]() I have 3 other lenses and these all work fine so i know it is in the lense, not the camera. My macro lens is constantly hunting for a focal point. Sporatically it will find focus and stop but most of the time it goes on for as long as I hold the button in. When I have it on auto focus it just keeps going in and out. I can manually focus and the red lights show when I push the button half way in. I have a canon rebel xs with the 18-55mm lense and is doing the same thing.
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