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| + | ====== Canon Lenses FAQ ====== | ||
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| + | ===== Canon Abbreviations ===== | ||
| + | |||
| + | **Mounts** | ||
| + | |||
| + | * **R-Mount** - really old thing, started to be used in 1959 | ||
| + | * **FL-Mount** - first really popular manual lenses mount, started at 1964. | ||
| + | * **FD-Mount** - most popular old Canon manual mount, used since 1971. Compatible with FL lenses. | ||
| + | * **EF-Mount** - completely new mount, focusing and aperture are controlled by lenses themselfs. | ||
| + | * **EF-S Mount** - Lenses made for APS-C sensors, can not be used on old EF bodies. | ||
| + | * **EF-M Mount** - Mirrorless mount used only in Canon M cameras. | ||
| + | |||
| + | **More General** | ||
| + | |||
| + | * **L** - Abbreviation for premium lenses. | ||
| + | * **I, II, etc** - indicate lens generation, usually improved and more advanced lenses have higher number. | ||
| + | |||
| + | **Auto Focus related** | ||
| + | |||
| + | * **AFD** - Arc-Form Drive, slowest and noisiest drive. No manual focus override. Bad for video. | ||
| + | * **MM** - Micro motor, smaller focus drive, also noisy and without focus override. Bad for video. | ||
| + | * **STM** - Stepper Motor, good for slow focus changes, quite silent, good for video. | ||
| + | * **USM** - Ultrasonic Motor, fast for still photos focusing, almost silent. Not very good for video. | ||
| + | * **Nano USM** - latest version of ultrasonic motor, made to be almost silent and good for video. | ||
| + | |||
| + | **Stabilization** | ||
| + | |||
| + | * **IS** - Optical Image stabilization, in fact can differ from year to year and lens to lens. | ||
| + | * **IS II** - Sometimes used to indicate advanced stabilization for newer lens. | ||
| + | |||
| + | **Special Lenses** | ||
| + | |||
| + | * **PZ** - Lens with power zoom. Such lenses are made for video work mostly. | ||
| + | * **Macro** - Lens that have small minimal focusing distance and flat focusing plane. | ||
| + | * **Compact Macro** - Smaller macro lens that can not reach usual 1:1 macro dimensions, usually 1:2 only. | ||
| + | * **MP-E** - Ultra Macro lens, like 5:1. | ||
| + | * **TS-E** - Abbreviation for tilt-shift lenses. | ||
| + | |||
| + | **Optical Construction** | ||
| + | |||
| + | * **SSC** - Canon brand of good elements coating. Used only on old glass, now it comes by default. | ||
| + | * **DO** - Lens with at least one Diffractive Optics element. | ||
| + | * **Softfocus** - Lens with element making picture dream like. | ||
| + | |||
| + | ===== General Lenses info ===== | ||
| + | |||
| + | We have separate page for Canon FD - [[Camera Usage::Canon FD Lenses FAQ| Canon FD Lenses FAQ]] | ||
| + | |||
| + | Feel free to contact us if you want to add info for new Canon EF. | ||