PHOTO - VIDEO - PRO AUDIO
Section1a
Digital SLRs
Introduction to SLRs....................139 Canon ........................................140-171 Fuji.............................................172-175 Kodak ........................................176-181 Nikon ........................................182-207 Olympus ...................................208-217 Pentax.......................................218-221 Sigma ........................................222-235 Tokina.......................................236-238 Tamron .....................................239-241
INTRODUCTION
Digital Point & Shoot vs. Digital SLR
The single-lens-reflex (SLR) camera provides many capabilities not found in snapshot or point-and-shoot cameras – such as interchangeable lenses and other accessories – which give photographers greater control and flexibility. SLRs allow photographers to check image sharpness visually. The effects of changing lenses or adding attachments are immediately visible in the viewfinder. Technically, the SLR differs from the point and shoot camera in that an SLR uses one lens for both the viewing and taking of a picture. Just before the SLR shutter opens, a mirror, which has been reflecting the image into the viewfinder, flips up, allowing the image to fall on the CCD—as the shutter opens. This makes for more accurate framing, especially when photographing close-up subjects. But there are many other differences.
DIGITAL SLRs
Through-the-Lens (TTL)
SLR cameras use “through-the-lens” (TTL) metering. This means that the exposure is determined from the amount of light actually passing through the lens which will “take” the picture, providing much greater accuracy. SLRs have no parallax error. The photographer sees exactly what the lens sees— especially important when taking close-up photographs. Another advantage is that the photographer can attach the camera to a telescope or microscope, fit diffusers or masks over it, and still see the precise image the lens will produce on film.

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