“What is the significance of Rebel Ti versus Rebel T ? What does DSLR stand for ? What does a STM Lens mean? What does a "IS USM" lens mean ?”
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DSLR is digital single lens reflector camera. It basically has a mirror being used in the camera where the lens is attached. There are now options for mirror-less cameras and this is the difference besides the aperture as well. STM is Canon's term for Stepper Motor which is a very quiet auto focus option used for videos and photos of wildlife. USM is the Ultrasonic Motor a good auto focus but not near as quiet as the STM, common in more wide angle lenses. IS means image stabilizer if I recall correctly. Canon has been using the term for decades now. The T7 still has an lcd screen but it is not flexible nor touch sensitive that the T7i does. Both of these are the using the APS-C sensor and thus not a full frame camera but offer great entry user options.
Sorry, there was a problem. Please try again later.Canon T7i Key Specs 24MP - APS-C CMOS Sensor ISO 100 - 25600 ( expands to 51200) Canon EF/EF-S Mount 3" Fully Articulated Screen Optical (pentamirror) viewfinder 6.0 fps continuous shooting 1920 x 1080 video resolution Built-in Wireless 532g. 131 x 100 x 76 mm Also known as EOS 800D / Kiss X9i Replaced Canon EOS Rebel T6i Compare Canon T7 Key Specs 24MP - APS-C CMOS Sensor ISO 100 - 6400 ( expands to 12800) Canon EF/EF-S Mount 3" Fixed Type Screen Optical (pentamirror) viewfinder 3.0 fps continuous shooting 1920 x 1080 video resolution Built-in Wireless 475g. 129 x 101 x 78 mm Also known as EOS 2000D DSLR camera is a digital single-lens reflex camera. STM stands for Stepper Motor and is a applied to a new range of Canon lens IS stands for Image Stabilizer. USM is short for UltraSonic Motor. What this means is that your lens will autofocus faster than standard models.
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