An outstanding walk-around lens Canon's EF 50mm f/1.8 STM is an entry into the world of EOS prime lenses. With an 80mm effective focal-length on APS-C cameras, 50mm on full-frame cameras, it's an excellent prime lens for portraits, action, even nighttime photography. Its bright maximum aperture of f/1.8 helps it not only to excel in low light, but also to capture gorgeous, sharp images and movies with beautiful background blur thanks to its circular 7-blade design. An updated lens arrangement with new lens coatings helps render images with excellent color balance, plus minimized ghosting and flare. Performance is brilliant, with a stepping motor (gear-type STM) to deliver near silent, continuous Movie Servo AF for movies plus speedy, smooth AF for stills.
A redesigned exterior with improved focus ring placement makes manual focus adjustments a breeze. Canon's most compact 50mm lens, the EF 50mm f/1.8 STM has a rugged metal mount, plus an improved minimum focusing distance of 1.15 ft. (0.35m) and a maximum magnification of 0.21x. Offering sharp performance for the best in movies and stills, it's a fixed focal length gem—the perfect lens for photographers and moviemakers to expand the creative possibilities with their EOS cameras.
- 50mm focal length and maximum aperture of f/1.8
- Great for portraits, action, and nighttime photography
- Minimum focusing distance of 1.15 ft. (0.35m) and a maximum magnification of 0.21x
- Stepping motor (STM) delivers near silent, continous Move Servo AF for movies and smooth AF for stills
- 80mm effective focal-length on APS-C cameras, 50mm on full-frame cameras
Frequently Asked Questions
Is there a difference between EFS 18-55mm that came with my Rebel T1i?
This lens cannot zoom in or out, it will be like your 18-55, but set at 50MM. The Benefits of having a prime, with an aperture of 1.8 (much faster than 3.5-5.6 ) is that it can create out of focus areas referred to as "Bokeh", it will also have much better low light capabilities when set at 1.8 or near that area. Another benefit to having a prime is that it will be much sharper at f2.8 and higher onward compared to your kit zoom lens. The only difficult you might face is taking group shots as it will be equivalent to about 80mm on a APS-C/Crop sensor (Your t1i) Also, you must be careful when focusing at 1.8 or near that range because it is easier to lose focus due to the smaller depth of field. Make sure to use single point focus with this lens at lower apertures such as 1.8-2.8 and focus on people's eye to achieve the best results.
Is this version's AF quieter compare to ef 50mm1.8 w/ range scale metal mount + the version II?
All stm lenses are near silent. There is still a slight noise but nothing like the other two lens you are comparing it to. The new lens also has faster focusing as well.
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- Filter Size 49mm
- Closest Focusing Distance 1.15 ft. / 0.35m
- Focus Adjustment AF with full-time manual
- Diagonal Angle of View 46°
- Lens Construction 6 elements in 5 groups
- Maximum Focal Length 50 mm
- Maximum Aperture Range F1.8
- Lens Type Prime Lens
- Focus Type Stepper motor
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