Canon EF50MM F/1.8 STM Lens for Canon DSLR Cameras

Best quality , sharp and more dealing pictures and video quality

The Canon EF 50mm ƒ/1.8 STM is the third lens in the 50mm line for Canon, the original having been released in 1987 and updated in version II in 1990. Twenty-five years later, the lens has been overhauled with the new STM focusing system and a new look, but otherwise the optical design is unchanged.The lens was designed to fit the EF (35mm) mount, and will also work on the EF-S mount for 1.6x cropped sensor bodies, as well as Canon's existing APS-H (1.3x crop) bodies. On these bodies the equivalent field of view is 80mm and 65mm respectively.The lens is available now for approximately 8kSharpnessUsed wide open at ƒ/1.8 or ƒ/2, the lens exhibits substantial corner softness. On a sub-frame camera like the 7D it's not quite as noticeable as on a full-frame camera like the 1Ds mkIII, because the sensor doesn't capture the entire field of view offered by the lens. Either way, at ƒ/1.8 there's only a small area of sharpness in the center of the frame, which quickly gives way to softness going out towards the corners.Stopping down to ƒ/2.8 improves sharpness dramatically: on the sub-frame 7D, images produced are almost tack-sharp corner to corner, with a light amount of softness in the extreme corners; however, on the full-frame 1Ds mkIII there is still some corner softness to contend with. It's not until ƒ/4 that we see true corner-to-corner sharpness, which improves negligibly as the lens is stopped down to ƒ/8.Diffraction limiting sets in at ƒ/11, but you won't see any practical impact on sharpness until ƒ/16 and ƒ/22.Chromatic AberrationThe Canon EF 50mm ƒ/1.8 STM is very resistant to chromatic aberration: there is a slight amount present when the lens is used at its widest apertures, but as it is stopped down it is less prominent.Shading (''Vignetting'')With the Canon EF 50mm ƒ/1.8 STM mounted on the sub-frame 7D, there is a slight amount (1/3EV) of corner shading that disappears as the lens is stopped down past ƒ/2.When mounted on the full-frame 1Ds mkIII, the lens produces some impressive corner shading when used at ƒ/1.8 or ƒ/2 - the extreme corners are one and a quarter stops darker than the center. Stopped down to ƒ/2.8, this corner shading becomes just a half-stop differential, and at ƒ/4 and smaller, corner shading becomes negligible.DistortionThe Canon EF 50mm ƒ/1.8 STM produces images with a small amount of barrel distortion, less noticeable on the 7D than on the 1Ds mkIII: on the latter camera, images show +0.5% distortion in the corners. This is easily correctable in post-processing.Autofocus OperationThe Canon EF 50mm ƒ/1.8 STM employs an autofocus system called a "Stepping Motor", which allows the lens to provide smooth and quiet autofocus operation -- particularly beneficial during video capture. The lens took around a second to focus from infinity to close-focus. It offers full-time manual operation by just turning the focus ring after autofocusing. Attached 49mm filters will not rotate during focus operations, making life easier for polarizer users.MacroThe lens' minimum close-focusing distance is just over thirteen inches, and at this minimum distance it provides a magnification of 0.21x - not great for macro work, but not terrible, either.Build Quality and HandlingAt just over five ounces, the new 50mm ƒ/1.8 STM is actually slightly heavier than the 50mm ƒ/1.8 II, which weighed an ounce less. The new lens sports a satin black finish, and uses a metal mount to attach it to the camera, however it uses 49mm filter threads instead of the more common 52mm size. The lens is devoid of any ornamentation other than its identification badge - there is no distance scale or depth-of-field markings. There's only one control switch on the lens, to enable or disable autofocus. The diaphragm is made up of seven curved aperture blades, compared to the previous version's five, which should make for more pleasing bokeh results.

My first lens received was faulty. When I attached the lens, my Canon 1300D camera indicated no lens and F value wasshowing 00. The lens was not turning after certain angle at the attchment point. I had to call Amazon customer care for replacement and it was really frustrating moment. The associate assured that the replacement will be done in 3-4 days and new piece will be delivered after checking the quality. She also assured that seller will be reported about the quality of the product. I received the replacement as and the really the piece was new. It attached to my camera without any hiccups and was detected by the camera. The F value is changeable. The quality of the piece is as per description of the product mentioned and the photographs are as sharp as expected. Thank you Amazon.

Doesn't fit to my place

First of all thanks to Amazon and the seller for quick delivery.Now let me tell you a little about myself .I am an hobbyist photographer . I have a Canon 500D with Standard Zoon 18-55mm kit lens and a 55-250mm Telephoto lens. This is my first prime lens.If you have a standard 18-55mm kit lens you might have always felt the need to have a larger aperture to get good low light shots.Canon's EF 50mm f/1.8 lens fulfils that need at a very reasonable price.Just 1 month back Canon released this lens. So, now if you want a Canon 50mm f/1.8 lens ,you've got two options , either get this lens with a Stepper Motor for autofocusing or get the earlier version of Canon's EF 50mm lens that had a micromotor.I will compare this lens(EF 50mm f/1.8 STM) with the previous version(EF 50mm f/1.8 II) based on different reviews I have read and based on my personal findings:-Pros of this lens : -1 - The build quality of this lens is very good compared to the previous lens and this lens has metal mount and therefore more durable and it is smaller in size too.2- The lens is Silent while focusing if you compare it to the previous lens and the autofocus is a bit faster to lock on an object. It is not very silent if you compare it to 18-55mm STM lens3- If you shoot mostly video then this lens is very good , it focuses faster and makes much less noise while focusing4- The Bokeh of this lens is much better looking than the previous one , its much rounder and softer and gives smooth transitions when you change aperture in video mode.5 - If you half press the shutter button in the one shot mode , you can adjust the focus ring and therefore in a way you get full-time manual focusing with this lens which you dont get in the previous version.6- This lens is a bit sharper at the widest aperture and also uses Canon's modern Super Spectra coating, to avoid lens flareCons of this lens:-1- The only negative point I could find while comparing it with previous lens is that the manual focus works only when the camera is attached to the lens and is switched on and not in sleep mode which is true with every lens with Stepper Motor. So , if you're using normal extension tubes for macro photography then this may not be very helpful but you could always move the lens near and far to the object to achieve the focus but it would not be hassle free. So, for this purpose the previous ver lens is much better.In Conclusion , this lens is much better than the previous one , So go for it without even thinking.I didnt had much time to use this lens but attaching a few pics I have taken so far with this lens.Edit 1- I made a timelapse of Clouds with this lens , find it here -> https://www.youtube.com/watch?v=8zez3j9uZ8Q&fb