Canon 70D is an APS-C camera, and the corresponding lens type is EF-S lens. The positioning of the lens covers low, medium and high levels. Canon EF-S 18-55mm, Canon EF-S 18- 135mm and Canon EF-S 17-85 are used.

Details are as follows:

1, canon ef-s18-55mm

Canon EF-S 18-55mm is the standard lens group of Canon SLR cameras at present. The focal length of the lens is completely sufficient for ordinary photographers, and the imaging quality of Canon EF-S 18-55mm is also excellent in the same level of lens. If the budget is limited, you can consider buying Canon EF-S 18-55mm.

2. Canon EF-S 18- 135mm

Compared with EF-S 18- 135mm, Canon EF-S 18-55mm has the main advantages of more complete lens focal length, wider shooting range and no difference in image quality.

3. Canon EF-S 17-85mm

Canon EF-S 17-85mm can be understood as the luxury version of the first two lenses, with more practical focal length and more stable image quality, but the lens is more expensive, which is suitable for photographers who have higher requirements on shooting effect.