Standard lens featuring superb quality and portability. Two high-refraction lens elements and new Gaussian optics eliminate astigmatism and suppress astigmatic difference. Crisp images with little flare are obtained even at the maximum aperture.Buy at Amazon $349.00
Full-time manual focus operation is available for fine-tuning of your focus position when working in the AF mode. The Canon FD-EOS adapter is rare and is only usable with certain FD telephoto lenses. Contrast picks up in the center and coma improves in the corners, but still far from optimum. When the photographer knows they will not need a certain part of the focus distance range, limiting it will help shorten the autofocus time, and possibly prevent "focus hunting". Because Canon reduced the flange focal distance from that of its EOS DSLR line, the mount was altered so that EF and EF-S lenses cannot mount directly on EF-M bodies. Don't pick up a camera by this lens, always move and hold your camera by its body, not this lens. Falloff is as expected: some wide-open, and it goes away a stop or two down. It doesn't rotate, but it does move in and out as you focus. Compatible third-party lenses with the EF lens mount are manufactured by Samyang, Schneider, Sigma, Tamron, Tokina, and Carl Zeiss.
Canon EF 50mm f/1.8 II Review -The hood mount is of a bayonet style on most EF lenses, though a clip-on style hood mount is used for a small selection of current lenses. The pins, from right to left on the lens, are: The information from the lens is used by the camera body for focusing and metering, and with digital camera bodies it is used to record the lens parameters in the Exif data in the images. If you shoot in low light, you need one of these, period. In addition to correcting angular movement, Hybrid IS also corrects for shift movement. It only corrects handheld motion; if the subject of the photograph is moving, IS will not stop it. The second benefit is that, since a body with a smaller sensor can use a smaller mirror, the rear element of the lens can extend somewhat into the body without danger of being struck by the mirror. They are used for temporarily stopping the autofocus feature of the lens. But this is not a wildlife lens - and the noise probably won't bother most people. Second, using the motor requires power, so when an STM lens is not connected to a camera or the camera is switched off, changing the focus is impossible. Unlike all other Canon lenses, the manual focus ring turns as the lens is autofocusing, so keep your fingers away from it. Additionally, fluorine coatings have also been applied to the front and rear lens elements for further protection against fingerprints and smudging. The following is a list of EF lenses made by Canon. The motors were designed for the particular lens they were installed in. EF-S uses the standard EF bayonet mount, but with minor physical alterations which prevent EF-S lenses from being mounted on bodies which do not support them. None, which is better than most Canon wide and zoom lenses. Focus preset: The focus preset feature is found on most super telephoto EF lenses. Wind moved the branches around during the exposure. Bokeh, the quality of out-of-focus areas as opposed to the degree of defocus, is fair to good. COOCHEER Camera Tripod Stand for. All EF lenses that support IS have the words "Image Stabilizer" written on the lens.
Canon Lens 50mm EF f/1.4 USM - Digital Camera WarehouseI've greatly exaggerated this by presenting it against a gray background. Many Blackmagic Design cameras are sold in EF-mount variants. To use this button, one must first have the autofocus active, then when one wishes to halt autofocus, one presses and holds the button. Focus speed is not stellar, but fine in good light with subjects that are not moving too quickly. It is used for presetting a given focus distance into memory, so that the photographer can quickly recall the focus distance, without the need for autofocus.
Canon EF 70-300mm f/4-5.6 IS USM Lens - B&H Photo Video
Canon EF 50mm f/1.8 II Lens ReviewThe hood adapter threads onto the lens - the hood then attaches to the adapter by pinching two latches. Lens design is always a compromise among these trade-offs. Tripod collar: This feature is found on most longer focal length lenses, and macro lenses. Distance scale window: This feature is found on many EF lenses. Filter mounts are useful for all types of photography, and every EF lens has either one or two of the three types used. You'll see it if you're looking for it, but unless you're shooting brick walls, you won't. DO lenses are usually smaller and lighter and are better at handling chromatic aberration, compared to conventional lenses of similar focal length and aperture value. Inner, drop-in filter mounts are used on super telephoto EF lenses. I suppose a positive aspect of the sound is that you know when it is working - and when it is finished working - when focus is locked. If you've gotten your gear through one of my links or helped otherwise, you're family. The types and number of the controls can vary from lens to lens. These are shown as red markings below the distance scale. The focus preset feature uses one switch, one button, and one ring. Four glass-molded aspherical elements, including one large-diameter double-sided glass-molded lens, help to minimize distortions throughout the zoom range in order to maintain edge-to-edge sharpness and illumination. As this page is copyrighted and formally registered, it is unlawful to make copies, especially in the form of printouts for personal use This version II of the popular lens makes improvements to image quality through the use of a new optical design with four glass-molded aspherical elements, which helps to limit vignetting in your images. To make an adjustment, first focus the subject, then turn the Focusing ring so it matches the corresponding infrared index mark. Image stabilizer switch: This switch is found on all EF lenses that feature an image stabilizer. The mount is plastic, but the glass is all Canon's finest multicoated glass. The zoom index is typically a white, or black, line found next to the zoom ring. This is a list of the different controls and switches found on most Canon EF lenses, along with a detailed description on what they are used for. It helps me keep adding to this free website when you get yours through those links - but I receive for my efforts if you buy elsewhere. Sometimes compatibility problems arise, as no third party has access to Canon's specifications for camera to body communication. Distinctive visual cues include a red ring around the lens and an off-white colour on longer-focal-length models. With the most basic lenses having only a few, to the most complex having over a dozen different controls and switches. There's no need for special thin filters; even thick ones work great on full-frame. The latter also helps to reflect light and reduce heat absorption. There are three types: front threaded mount, inner drop-in mount, and rear gelatin holders. The biggest help is when you use any of these links when you get regardless of the country in which you live. One type is opened up, placed on the lens' tripod collar, then closed and tightened. The "set" button is used for saving the focus distance into memory. It slides on and off my cameras much more smoothly and easily than my metal-mount lenses. L lenses with USM don't have the gold ring, but they still have the word "Ultrasonic" printed on the lens barrel. Particularly for a wide-angle lens, this gives the lens designers more freedom in designing the lens' optical formula. The key innovation of the EF series was to use a motor inside the lens itself for focusing. This section needs additional citations for verification. Also, it uses an Air Sphere Coating to reduce ghosting and flaring. In the original image, you can see that they're fake. The tripod ring is used for attaching a tripod/monopod near to the point of balance of the lens-body combination, more conveniently than the camera body. Due to the high market penetration of EF-mount lenses, other camera manufacturers began to offer EF-mount cameras. A weather-resistant design protects the lens from dust and moisture to enable its use in inclement conditions. It is used for matching the EF lens mount to the mount on an EOS body, so one can connect the lens to the body quickly.
Canon EF Smart Adapter Tests for Sony E-Mount CamerasSuch a lens, if used on a body with a larger sensor, would leave the outer portions of the sensor outside its image circle, and therefore they would be black, but since EF-S lenses will not physically mount on incompatible bodies, this problem is avoided. Note how clearly you can see the depth of field with a lens this sharp. Longer focal length lenses and macro lenses have a relatively long travel distance for the focusing mechanism inside the lens; this feature shortens the autofocus time. This updated version offers improved image quality, with a notable enhancement in peripheral brightness. All L lenses are supplied complete with a hood and pouch, which are not included with non-L lenses. It costs you nothing, and is this site's, and thus my family's, biggest source of support. Micromotor USM is used to bring down the cost of the lens. Some older USM lenses are identified with a gold ring and the word "Ultrasonic" printed in gold on the lens barrel. Image stabilizer mode switch: This switch is found on many EF lenses that feature an image stabilizer, particularly those of longer focal lengths. Filter mounting: This mount is used for attaching filters to EF lenses. It is used for changing the focal length of the lens. I've greatly exaggerated the effects of falloff by shooting a blank field and then highlighting them on top of a flat gray background. I'd pitch the flat Canon cap that came with this lens new, and get a new Nikon pinch-type cap. Lens mount index: This marking is found on all EF lenses.
Canon EF 24-105mm f/4L IS II USM Lens - B&H Photo VideoTo use this feature, one must set the switch to either "on" or "on with sound", focus the lens to the desired distance, then press the "set" button. These additional pins are used by the Canon Extender EF adapters and the Life-Size Converter EF to indicate to the lens the change in focal length so that it is able to report the correct focal length and aperture to the camera body when mounted on a teleconverter. While I is used in the table below, it is never used in official Canon model numbers; the original model lacks a Roman numeral and only the second and subsequent generations have them My biggest source of support is when you use any of these links, especially this link directly to it at Adorama or directly to it at Amazon, when you get , regardless of the country in which you live. Two main disadvantages are linked to focus-by-wire: First, the need to computationally process the input before the intended action is executed leads to a sometimes perceptible lag. Unlike USM, STM lenses use focus-by-wire to enable full-time manual mode. I wouldn't use a hood, except maybe a generic fold-down rubber hood. You might get more wear than you wish if you are changing the lens frequently. In the case of larger and heavier lenses, there is also less strain on the lens mount if the body is supported by the tripod-mounted lens than if the lens were to be supported by a tripod-mounted body. It also uses a fluorine coating on the exposed front and rear elements to help prevent smudges and to make cleaning easier. To set the zoom ring to any given focal length, one must turn the ring so that the marked focal length matches the zoom index. The standard autofocus lens mounting technology of the time used a motor in the camera body to drive the mechanics of the focus helicoid in the lens by using a transfer lever. Full-time manual focus override is available for making adjustments regardless of the AF mode. To set the tripod ring so that it is level with the lens, rotate the ring until the index mark on the tripod ring matches the index mark on the distance scale. Under all the contrast-robbing haze, there is a core of a sharp image. If you shoot just about anything that moves in available light, you need one of these. I like this: it uses plastic where it can to save weight, and metal where it needs it. As with all L-series lenses, this optic has a dust- and water-resistant construction thanks to numerous seals that prevent intrusion when working in inclement weather. Acknowledgement: Many thanks to Jerry Johnson of Orange County, California who loaned me his lens for this review. For other lens types, an adapter would act as an extension tube, causing the lens to lose the ability to focus to infinity. Mechanically, it is a bayonet-style mount, and all communication between camera and lens takes place through electrical contacts; there are no mechanical levers or plungers. Focus mode switch: This switch is found on most EF lenses that have an autofocus feature. Canon EF lenses typically have a number of controls, switches and physical features, used by the photographer to control the lens. This lens is not for everyone, but I don't know of a better lens available for twice this price. When you ask for a non-zoom, fixed focal length normal lens of only moderate speed, it's easy to make the optics fantastic, and at a very, very low cost if you don't mind plastic. Moving your lens selection from the left-most lens to the right-most lens makes a huge difference in your wallet. The corners are sharp, with just a little less contrast. The front of the lens moves in and out as it focuses, but the filter ring does not rotate. When rotated, the distance scale will also rotate to show the changing focus distance. EF means "electronic focus," meaning that there is an autofocus motor in the lens itself. This allowed for autofocusing lenses which did not require mechanical levers in the mount mechanism, only electrical contacts to supply power and instructions to the lens motor. With a manual connection, the aperture and focus controls of the lens cannot be controlled or read from the camera; the lens must be focused manually. Its only vices are its light-duty construction and needing a switch to get into manual focus.
Canon was the first camera maker to successfully commercialise the USM technology. Trying to compare the three fixed lenses is futile, because they all do something better at different places in the field at different apertures. The less expensive macro was much sharper at large apertures. It is very precise and high-quality plastic, not garbage. There are three types of USMs: ring-type USM, micromotor USM, and. Focusing distance range limiter switch: This switch is found on most longer focal length lenses, and macro lenses. The plastic threads don't rotate as you focus, but they do move in and out. These places have the best prices and service, which is why I've used them since before this website existed. With a plastic mount, this lens won't take much of a beating. Infinity focus would be lost with an adapter which lacks optical elements. Alternatively, the lens adapters would include optical elements and act as weak teleconverters, as well as possibly losing optical quality. The macro also had much less distortion, and of course could focus much more closely. None; the front of the lens is sufficiently recessed to cover you most of the time. Manual focus requires moving a switch, and the focus ring turns as the lens autofocuses. For Sony E-mount various adaptors enable using EF-mount lenses with full electronic control