The Canon EOS system of digital single-lens reflex (SLR) bodies and lenses is the standard choice among professional photographers worldwide. This page makes it easy to shop for Canon digital bodies and EOS lenses. Every component manufactured by Canon is covered, plus a few exceptionally good third-party components. If you are new to photography, you might want to start with our article "Building a Digital SLR System".
This article goes through every section of the Canon EOS system and concludes with some starter system recommendations.
The Nikon system of digital single-lens reflex (SLR) bodies and lenses is a popular choice among serious photographers worldwide. This page makes it easy to shop for Nikon digital bodies and Nikkor lenses. Every component manufactured by Nikon is covered, plus a few exceptionally good third-party components. If you are new to photography, you might want to start with my article "Building a Digital SLR System".
This article goes through every section of the Nikon system and concludes with some starter system recommendations.
Sigma makes some interesting lenses for digital SLR cameras. They also produce some of their own digital SLR bodies with a class-unto-itself new type of sensor. Sigma is mainly known as a third-party lens manufacturer, producing lenses in mounts compatible with the major brands: Canon, Nikon, Pentax, Sony, Olympus. They offer high-quality glass in many of the popular focal lengths which, in many cases, are at more affordable prices than the specific manufacturer’s offerings.
This article covers every current Sigma product.
Most digital cameras have a fixed zoom lens that can't be removed or replaced. One big advantage is that the camera is sealed so no dust can get on the image sensor. Digital SLR cameras have removable lenses so you can change them when circumstances dictate.
This video shows you how to photograph stars without doing a long exposure and to avoid human error by listening to what the camera meter says. This video is for D-SLR's only. Watch another video for star trails using a 35mm film.