| Leica 35mm | | | | top-class images. An ideal lens for a quality, |
| - This lens is very fast, offers top-class image | | | | lightweight outfit, and usable with a wide range of |
| quality in low light, but is large and heavy. | | | | subjects. |
| - Fields of view - as focal lengths become longer, | | | | Canon 50mm |
| fields of view become narrower and narrower. | | | | - A very useful focal length - its very fast (wide) |
| Sigma 14mm | | | | maximum aperture makes this type of lens one |
| - A wide-angle for the 35mm format, designed to | | | | of the most versatile you can own. In addition, |
| provide a super wide-angle for digital cameras. | | | | you should expect impeccable image quality. |
| Equivalent to 21mm on many slr digitals, such as | | | | Canon 300mm |
| the nikon d1 series. | | | | - An ideal lens for sports photography and wildlife |
| Canon 20mm | | | | work. This lens is heavy, however, and requires |
| - A very useful ultra wide-angle for 35mm and | | | | support. |
| giving a 35efl of about 30mm on digital cameras. | | | | Equivalent focal length |
| These single focal length, or prime, lenses | | | | - A "normal" lens is taken as being one whose |
| generally give excellent, distortion-free results. | | | | focal length is about equal to the length of a |
| Canon 28mm | | | | diagonal line drawn across the film format. With |
| - Compact, fast (having a wide maximum | | | | the 35mm format, the diagonal of a frame of film |
| aperture), and easy to use, a 28mm lens is one | | | | is 43mm. |
| of the most versatile there is. Useful for subjects | | | | With digital cameras, normal focal length varies |
| from portraiture to landscapes as well as close-up, | | | | with image-sensor size. The practice is to quote |
| fast-moving action. | | | | the "efl" (equivalent focal length) for the 35mm |
| Nikkor 45mm | | | | format. The maximum wide-angle of many digital |
| - Based on a classic optic, this 45mm lens is | | | | zooms is a 35efl of 35mm, while a 35efl of |
| extremely compact yet capable of producing | | | | 28mm is offered on only a few digital cameras. |