Lens comparison
Canon RF-S18-150mm F3.5-6.3 IS STM vs Canon RF-S18-45mm F4.5-6.3 IS STM
Side by side on the Canon EOS R50: the view each gives, the weight with the camera and their sizes to one scale. No winner: the numbers that differ are the choice.
Side views to one scale from the makers' published sizes, mount on the left.
| Lens | Canon RF-S18-150mm F3.5-6.3 IS STM | Canon RF-S18-45mm F4.5-6.3 IS STM |
|---|---|---|
| Focal length | 18–150 mm | 18–45 mm |
| View on the EOS R50 | 29–240 mm equiv. | 29–72 mm equiv. |
| Maximum aperture | f/3.5–6.3 | f/4.5–6.3 |
| StabilisedSame | Yes | Yes |
| Made forSame | APS-C | APS-C |
| Weight | 310 g | 130 g |
| With the EOS R50 | 685 g | 505 g |
| Length × diameter | 84.5 × 69 mm | 44.3 × 68.9 mm |
| Filter | 55 mm | 49 mm |
| Closest focus | 17 cm | 20 cm |
| Magnification | Not published | 0.16x |
| Weather sealingSame | No | No |
| FitSame | Fits and works | Fits and works |
Amazon links on this page are paid links: we earn from qualifying purchases at no cost to you. They never change which lenses fit or how a list is sorted. Disclosure
Questions
Which is lighter on the EOS R50?
Canon RF-S18-45mm F4.5-6.3 IS STM: Canon RF-S18-150mm F3.5-6.3 IS STM 685 g against Canon RF-S18-45mm F4.5-6.3 IS STM 505 g with the camera, battery and card.
Which one is sharper?
We do not test lenses, so we cannot say; read reviews from people who have used both. The table compares what the makers publish.
Facts checked 9 Oct 2026 against the makers' specification pages. How we check