Four dSLR Advantages Unrelated to Single Lens Reflexiveness

Some of the strengths that accrue to dSLRs have nothing to do with the fact that they are single lens reflex cameras. ¦ Higher sensitivity and reduced noise. The images from most non-dSLRs begin to break down when sensitivity is increased to ISO 800 or more, primarily because of excessive noise. Few of...

Raw Images

If your camera provides a raw mode, you have the option of deferring all the steps described in the previous section. In raw mode, your camera reads the data off the camera sensor, and writes it to your camera’s storage card. No processing is performed— not even demosaicing. Because these files are...

CCDs in Depth

CCDs, like CMOS chips, use microscopic lenses to focus incoming beams of photons onto the photosensitive areas on each individual pixel/photosite on the chip’s photodiode grid, as shown in Figure In a CCD, the sensitive area of individual photosites relative to the overall size of the photosite itself is...

Why dSLR camera ?

Why dSLR? Believe it or not, there are still some who are not sold on the superiority of the digital SLR. Many of them are poor souls who’ve never had a chance to actually use a dSLR, and are comparing them with other types of digital cameras that seem to share many of the same specifications (other...

The image resolution of any graphic

RIDING THE RESOLUTION CAROUSEL It is inevitable that you will encounter more than one type of resolution. For example, device resolution refers to the number of dots per inch (dpi) that a device, such as a printer or monitor, can produce or display. Device resolution on computer monitor screens can vary from...

Introducing Digital SLR Cameras

What makes a camera a digital SLR, anyway? And how is it different than a point-and-shoot camera? If you’re familiar with film cameras, then you know that SLR stands for single lens reflex, a system which uses mirrors and lenses to capture an image. When a photographer looks through a lens on an SLR...