EF-S 24mm f/2.8 STM - photos, first impressions, and reviews Nov 13, 2014 The lens is starting to ship today, earlier than expected, and the images are beginning to trickle in.
The EF-S 24mm f/2.8 STM sees Canon trying to replicate this winning formula, only now for APS-C shooters. With its 38mm equivalent focal length, the EF-S 24mm f/2.8 gives a natural, undistorted perspective to images. Offering a 38mm (equivalent) angle of view, this focal length may seem like a slightly odd choice for APS-C.
Mount Stortinden reflecting in the calm Flakstad Fjord, Lofoten. I was standing about 1 km from this 850m tall mountain. Being so close, I couldn't have included both the mountain and the reflection with a 16mm. It was easily done, however, with the 11-24mm. Canon EOS 5D Mark IV, Canon 11-24mm F4L Nisi Filters 180mm ND + GND 11mm, F11, 0.5 sec
Mount: Canon EF-S Full-frame: No Autofocus: Yes Stabilization: Yes Lens construction: 10 elements in 6 groups Angle of view: 42.5 degrees Diaphragm blades: 7 Minimum aperture: f/32 Minimum focusing distance: 0.13m Maximum magnification ratio: 1.0x Filter size: 49mm Dimensions: 69x56mm Weight: 190g. Canon EF-S 35mm f/2.8 Macro IS STM at Walmart

Optical properties. On Canon crop cameras, the EF-S 24 / 2.8 STM is a moderate wide or, rather, a universal staffer, with EGF 38 mm. Unlike full-frame 24mm lenses, the Canon EF-S 24/2.8 STM has a much less asymmetric optical design, which reduces field aberrations. In addition, the correction of optical distortion provides an aspherical rear

The Canon RF 28mm f/2.8 STM produces a heavy (4.1%), albeit not excessive, degree of barrel distortion in RAW images. As usual, auto-correction reduces the issue to a negligible degree. If you choose JPEG-only output, you can't even disable auto-correction in the camera. 28mm (corrected)
So, first of all. 24 f/2.8 STM and 28mm f/1.8 are wildly different focal lengths. The 24 is an EF-S lens, while the 28 is a EF lens. Since your gear list shows that you have a 70D, you have to think that your camera has a crop factor. Verdict. The Canon RF 16mm f2.8 STM is a compact ultra-wide prime lens for the full-frame EOS R mirrorless system, aimed at landscape, architecture, astro-photography and vlogging. Announced in September 2021 alongside the RF 100-400mm, the RF 16mm f2.8 costs around $299 or 319 pounds, making it not just the widest prime lens in the RF system
The Canon EF-S 24mm f/2.8 STM is an impressive lens that is small in size and low in price, making it appealing for many photographers. It has a full frame equivalent of 38mm when mounted on a Canon EOS R7 camera, and its autofocus speed is fast, reliable and quiet thanks to its STM motor. Its build is also beautifully made with a metallic lens mount. The lens has quite good sharpness
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    • canon efs 24mm f 2.8 stm review