One of the most common drug-induced injuries is irritation of the lining of the stomach caused by nonsteroidal anti-inflammatory drugs (NSAIDs). NSAIDs can irritate the stomach by weakening the ability of the lining to resist acid made in the stomach.
A 35mm and 50mm prime and a more pro-level (and possibly fast) zoom lens would benefit Canonâs EOS M ecosystem. As good as the EF/EF-S to EF-M adapter may work, there is nothing like native lenses. Please note: this is not the first time we get the suggestion that Canon is working on prime lenses for the EOS M system. The first rumors are more than a year old, and we didnât see new prime lenses for EOS M so far.
Canon EF-S lens mount. The Canon EF-S lens mount is a derivative of the EF lens mount created for a subset of Canon digital single-lens reflex cameras with APS-C sized image sensors. It was released in 2003. Cameras with the EF-S mount are backward compatible with the EF lenses and, as such, have a flange focal distance of 44.0 mm. Such cameras, however, have more clearance, allowing lens elements to be closer to the sensor than in the EF mount. Only Canon cameras released after 2003 with APS-C sized sensors support the EF-S mount. The S in EF-S has variously been described by Canon as coming from either Small image circle (the lens projects a smaller image circle than normal EF lenses to match the sensor), or Short back focus (the smaller mirror used in APS-C cameras also allows optical elements to protrude further into the camera body, reducing the minimum distance between the sensor and the back element of the lens).