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Helen Bradley - Pro Photo Blog

ProPhoto is a photo site for every photographer. We help you understand what you need to know to take better photos and how to share and enjoy them.

Sunday, February 7, 2010

Better Photos Tip #10 - Camera Raw vs, jpeg

Capturing in Camera RAW offers superior image adjustment options for your photos.

If your camera is capable of capturing images using the RAW format, this will allow you more editing opportunities later on.

It's a good idea to capture JPEG when shooting regular snapshots simply because JPEGs are easier to process and use and to use RAW for more creative captures.

Some cameras have a button you can press which gives you a one shot RAW capture so you can shoot in JPEG but easily capture a single RAW shot when you need one.

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Wednesday, February 3, 2010

Better Photos Tip #9 – Read the Histogram

The image histogram on your camera shows the tonal range in the image, use it to assess the quality of the image. Here there is a little too much data in the shadows (we say the shadows are plugged) and we could adjust the exposure accordingly.

To understand if you need to adjust your exposure, check the image histogram in the camera rather than relying on the image that appears in the LCD screen.

The histogram gives you a graphical representation of the image's tonal range. If the chart data doesn’t extend from one edge of the chart to the other, you will probably have a muddy lacklustre image.

If the chart is too far to the left, you need to lighten the image and if all the data is to the right the image is being overexposed.

If you're using a digital SLR you control the exposure by enlarging the aperture or decreasing the shutter speed to let in more light or vice versa to reduce the amount of light.

On a point and shoot camera, the exposure compensation feature lets you adjust the exposure amount to compensate for lighting issues. Typically you can adjust the exposure by any amount in the range -2.0 - +2.0 to darken or lighten the image. Exposure compensation was used here to expose this musician correctly against a very light background - I traded blown out highlights in the background for a properly exposed foreground.

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