What does it mean "digital SLR camera"?A digital camera is a camera that stores pictures on digital memory cards (such as CompactFlash or SecureDigital cards) instead of photographic film. You probably know this already :)
A SLR is a "Single Lens Reflex" camera. Technically speaking, they are different from non-SLRs in that they only have one lens through which light comes through, meaning what you see in the viewfinder is exactly what you get on film. In non-SLRs, the viewfinder is separate from the actual lens and the picture you see is different from the picture you'll get.
But practically speaking, SLR simply means a bigger, heavier, higher-quality camera (when compared to compacts). They allow more manual control so that people who want more "serious" photography can adjust the way their pictures turn out. Many modern SLRs, however, can be made to behave like a point-and-shoot camera with the "Automatic" mode carried over from compacts; even in this mode, the image quality is usually better than in compacts. Another SLR advantage is that the camera body and lens are separate, allowing you use to different lenses (wide angle, telephoto or zoom lenses, etc.) for different situations.
A digital SLR, then, is simply a camera that's both digital and a SLR. The same advantages carry over from the non-digital world: You generally get much higher-quality images from SLRs than from compact cameras, and you get the benefit of interchangeable lenses.
The same disadvantages carry over as well, unfortunately, and digital SLRs also have another set of issues when compared to compacts: They're usually much more expensive (especially if you want a good lens); they usually can't take movies; and, importantly, they do not allow you to preview your pictures on the LCD screen before you take them.* This means that you must frame the picture using the optical viewfinder and then review the picture afterwards.
Another category of cameras worth considering are the high-end, DSLR-like compacts. They attempt to combine the best parts of compact cameras (ease of use, movie functionality, live preview, lower prices) with many of the advantages of DSLRs (better quality, manual control). The only thing they don't have are interchangeable lenses, but their included lenses are usually quite decent and provide more performance for the buck when compared to a DSLR body + lens kit.
*Olympus recently announced the Evolt E-330 camera, a digital SLR which allows live viewing of pictures through the LCD screen. Its performance and quality remain to be seen, however. "single reflex lens" You can change the lens on these digital cameras, unlike regular compact models. Digital means you use your digits, or fingers, to press the buttons for example. and SLR means "Single Reflex Lens" "Single Lens Reflex" camera.
Definition: Standing for single-lens reflex, these are higher-end digital cameras revered by serious photographers. The digital versions of SLRs work in this manner: the shutter retracts so an image can be recorded. One of the prime benefits of using a digital SLR camera is that lenses are interchangeable. Digital Single Lens Reflex Camera, more clearer & sharper images... Normal point-and-click cameras are all-in-one. You simply point and click. They come in digital and normal (film) varieties
SLR cameras have interchangeable lenses. You can use special lenses for really close up (macro) or really far away (zoom). You can even get specialty lenses like fish-eye (super wide angle).
Digital SLR cameras are digital cameras that accept intercahngeable lenses, like a regular SLR.
SLR and digital SLR cameras are the cameras of choice for professional photography since they allow the photographer the most options, and often have a better lens and sensor than the standard point-and-shoot cameras. u can find more info abt digital slr, http://philip.greenspun.com/photography/... A Digital version of a "Single Lens Reflex" camera |