Travel photography/Full systems: Difference between revisions

ThereA are afew third-party companies such as Tokina, Sigma, and Tamron who make lenses but not cameras, and offersometimes the same lens withis mountsavailable forin more than one mount (most commonly Canon EF and severalNikon brandsF). It's sometimes possible to use lens adapters, although it may have a negative impact on focal length and autofocus, and some lens features may perform worse or not work at all. But for the most part, for any brand of camera, the widest selection of lenses will be the ones from that brand.

Brands change their lens mounts periodically to add new features (and to encourage users to buy new lenses, no doubt) with varying degrees of backwards compatibility. Older lenses may work with limitations (such as no autofocus), or may require more expensive camera bodies forto enable all features. As a rule of thumb, most cameras canare usefully compatible with lenses from roughly the last 20 years, although this varies widely by brand and even within each brand's lineup. (For example, the best modern Nikon camera bodies can still use autofocus lenses from 1986 and manual lenses as old as 1959, but their mirrorless cameras introduced in 2018 use a completely incompatible mount, although an adapter is available.) Used lenses are widely available and hold their value very well, so you may want to consider this when selecting a system.