Kristen 9/18/13 Post

Photos:

Taken at lunch at 1:00 PM. Dolceforte. ISO 1000. Shutter 1/80. F/4.
Looks slightly underexposed.

La bella Julia in Montalcino. 6:30 PM. ISO 200. Shutter 1/200. F/7.1.

Digital Sensors (CCD & CMOS):
Digital sensors are a component of digital cameras that capture light and convert it into electrical signals. The basic mechanism behind the sensors is that light hits the chip and is held as a small electrical charge, which is then converted into voltage, and is ultimately converted into digital information. CCD or "charge-coupled device" sensors convert the charge to voltage one pixel at a time. This type of sensor is used for high-quality image data such as in medical & scientific applications & captures the image all at once. Some cons of a CCD are that they are much more expensive & are susceptible to vertical smear from bright light when overloaded. CMOS or "complementary metal-oxide semiconductor" sensors are an active pixel sensor that captures a row at a time and uses different circuitry. Pros include: cheaper, no vertical smear, use less power, faster readout. However, CMOS sensors can result in "rolling shutter," which can cause slightly skewed images.

RAW vs. JPEG:
RAW photos contain all the information that can be taken in by the camera, however, they are much larger files and require significant post-processing. JPEG files are more compressed than RAW, but generally require little to no processing.

Using JPEG File format

Using RAW

Photo Description:

This photo is by David K. Langford. I love how the horse is in the left side of the frame and how his mane draws a beautiful line calling attention to the top of the saddle all the way to the bottom of the frame. The boy's arms and legs have strong angles that give more complexity to the photo.