let’s talk about the lens today
Two types of lenses are used in DSLR EF Lens And EF-S Lens. The EF lens used for full-frame camera and crop sensor cameras. The EF-S lens can use only crop sensor cameras. You can use the full frame camera if you want but when you take pictures then the entire side of the photo is exposed by the black. The EF-S lens has been created for crop sensor cameras because its sensor size is small. EF lens for full frame camera because it is a bigger sensor
Canon EF lenses have been around since the film SLR days. It was designed to cover the 35mm film frame. Because EF lenses have a larger image circle, they will cover full frame sensors and APS-C sensors.
Benefits of EF-S Lenses
Canon EF-S lenses are generally smaller and lighter. Because canon EF lenses less glass and a smaller lens barrel. Are required to produce an equivalent field of view for a lens. That goes on an APS-C camera, like the Canon Rebel line, when compared to a full frame camera.
The EF-S line of lenses is generally more affordable. Canon does not produce a “professional” category of EF-S lenses like the pro “L” lenses you find on the EF mount. Canon uses lower grade materials, while still producing solid results, for its EF-S line of lenses.
Should I Buy EF or EF-S Lenses?
Hopefully, you are now aware of which Canon lenses are compatible with your camera. As to which lens you should buy, my suggestion is to buy the one that fits your needs. If you want an extremely wide angle lens for your Canon Rebel or 70D, then you’ll need to look at the EF-S line of lenses for something like the EF-S 10-22mm f/3.5-4.5 USM, which will look like a 16-35mm lens on your camera. You can’t find a non-fisheye lens this wide in Canon’s EF line up.
Related Article: Why Best Canon EF-S 18-135mm STM Lens
If you are worried that might upgrade someday to a full frame camera. Don’t buy the lens that fits your needs now. If that means you want a massive EF telephoto lens, then go ahead. If you upgrade to a full frame camera later, it will work fine. You can hang on to your EF lenses, sell your EF-S lenses and buy their full frame equivalents after you upgrade.