If a photo is 1600 x 1200 and is 650kb, is there anyway to increase the DPI to 300?
What size is a good size for a digital photo that has a resolution of 1600 x 1200?
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M$5 Answers
So, the resolution is a description of how many points you have packed into a given dimension. Whether or not the 1600 x 1200 image will look good printed on a full letter size page depends a lot on the quality of the original and how it is being printed (Magazine, newspaper, photo printer, book jacket).
Edited to add Camera info:
If you have a TIFF setting on your Canon, use that. Beyond TIFF or RAW shooting, use the highest resolution and lowest compression available. If you get serious about the quality of your images you will eventually want to learn to use the RAW format process.
It's also important to note that most people asking for 300 DPI images don't understand the concept of DPI or the realistic expectations of the designers.
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M$
When you initially transfer your images to your computer you can choose to save them in several ways. For myself, I always keep the RAW file, a JPG with as little compression as possible at 300dpi which I use as a base for manipulation, and then a working file for web, etc. For printing purposes, most of the time I've found they'd prefer a file of at least 300dpi, with no sharpening, etc. or as little as possible. The publications generally prefer their in house people to do any manipulation needed to make your image look best in print, and any thing you do generally makes it more difficult to get a good looking image on the page. Now and then I've had requests for 600 dpi, and because I keep the RAW image that's no problem.
As for Flickr, I've not been on there much lately so I'm not sure what Flickr may do to any photos you upload. However if you upload a 72 dpi image for Flickr / web use, resampling it back to 300 won't really do any thing to improve the image. You'd do better to go back to the original file that came off your camera and work from there.
Best of luck Adria!
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M$
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M$
You can leave an optional "tip" with Mahalo's virtual currency, Mahalo Dollars. If you are asking a difficult question that might require some research, or if you'd like a wide variety of feedback, a higher tip often leads to more answers to your question.
M$
You've got it about right, I don't have much to add, though no recent Canon point and shoot camera will shoot in TIFF format (and I wouldn't recommend it due to speed) - shoot in RAW fi you have it, and maximum resolution, maximum quality JPEGs if you don't.