Choosing one lens that’s ideal for landscape photography, we’d opt for the Canon RF 14-35mm. It has a really useful zoom range for covering all the angles, highly effective image stabilization so we don’t have to lug around a tripod, and the lens is compact and lightweight. Image quality and all-round performance are superb, as are build quality and handling. Another big bonus for landscapes is that it has a filter attachment thread, with a diameter of 77mm. The lack of a filter thread on the RF 10-20mm can be a problem and, if anything, this lens is arguably too wide-angle for most landscape scenarios. The RF 15-35mm is a better fit, and that’s our second choice. For DSLRs, we’d go for the EF 16-35mm L-series zoom. It’s an excellent lens and also the only full-frame Canon EF lens in the group to feature image stabilization. Again, the EF 11-24mm has the same pitfalls as the RF 10-20mm, while the EF 17-40mm makes an outstanding ‘reasonably priced’ alternative. Things are a lot more straightforward in the APS-C camp. The EF-S and RF-S 10-18mm zooms are the natural choice for DSLRs and mirrorless EOS R System bodies, respectively.