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Canon EOS Rebel XT Resolution Help - How do you increase resolution of images?
I have an 8 megapixel Canon EOS Rebel XT. It is a very good camera, but I notice that when I open images in my editing program that the resolution of the images is always 72 pixels. The size of the image is huge - 3456 X 2304 - but how can I increase the resolution? Any tips on getting sharper images would also be appreciated. Thanks.
Image pixels, image size, image quality, and DPI(dots per inch) are a bit confusing.
Firstly, the real thing that should concern you is DPI. This is the actual numer of dots of ink per inch that your printer will allow you to put onto a print. Most computer moniters are designed to resolve 72DPI. The average magazine quality picture (like in Sports Illustrated) is 180DPI. Most color printers default at 300DPI and many will allow you to print into much higher ranges than that. DPI is controlled by your image editing software and your printer settings.
Some suggestions. Always take your original camera pictures at the highest resolution your camera will allow. If your camera allows it (yours does) and your image editing program will will accept this format (Adobe Photoshop, Adobe Lightroom, Adobe Elements, and several other better image editing programs do), shoot in RAW format. Always keep your original camera images in a separate folder and NEVER altar them. Always start working from your original images towards whatever your final goal is, and then save the final result in a different folder (and ideally with a different file name) then your original camera image came from. This practice will allow you to get the best possible result for the use you are trying to achieve.
The image size in pixels is what determines the maximum size you can reasonably expect to print your image.
Resolution refers to how sharp your image actually is. Resolution is the maximum image quality your equipment can produce. The main reason for less than sharp results is camera (or subject) movement during exposure. The second most common reason is improper camera focus. These are both camera handling problems which are user correctable. Understanding your camera and using it properly will correct these issues.
Hope this information helps... good luck with your photography.
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January 14th, 2006 in
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