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DPChallenge Forums >> Tips, Tricks, and Q&A >> Preparing a Print
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06/22/2004 07:04:08 PM · #1
I'm consistently stymied when I prepare a photo for printing. So here are a couple of random questions.

1. At what percent do you view the photo when working on it? I usually do it at 100%, but sometimes even 200%. I also look at it in 'print size.' How can one tell, at 100 or 200% if your photo looks 'good'?

2. How much noise is acceptable for a print?

3. When cropping, I can't tell a difference between cropping and using stair interpolation (viz a viz the tutorial here on DPC) and just putting in 10 in X 8 in X 300 dpi. Is there a difference, or is Photoshop 7 good enough to crop in this way?

That's about it for now. Thanks!
06/22/2004 07:10:17 PM · #2
1) work at 100 review at "print size".

2) However much you want in the print (what looks good when reviewed in "print size)

3) Sure?

*bonus tip: get a color profile from the lab you use to process the prints.
06/22/2004 07:32:47 PM · #3
I haven't really played with the cropping tool on photoshop much, so what I do to get correct ratios may be a bit unorthodox.

I decide on whether horizontal or vertical should be the longest side. I then take the number of pixels of the longest side, and then divide by the print ratio I want to use, i.e. 1.5 most of the time. I take the result of this then re-size canvas (not resize image) in photoshop, and modify the shorter side to the new result. You can select what edge you want the crop to be done, or even in the middle.

There are a couple of variations to this that you can use.
06/22/2004 10:05:17 PM · #4
Originally posted by dsidwell:

3. When cropping, I can't tell a difference between cropping and using stair interpolation (viz a viz the tutorial here on DPC) and just putting in 10 in X 8 in X 300 dpi. Is there a difference, or is Photoshop 7 good enough to crop in this way?

This is the same as cropping (without the "fixed size" option) and then upsampling in one step instead of several. How successful that is depends on the content of the photo and your definition of "good enough" quality.

If enlarging, I usually crop first, and then resample up if necessary. If you are going to end up reducing the size, then cropping/resampling in a single step works great and saves time.

You used to be able to enter values in the Crop Options which were not fixed to a given resolution, like 1 and 1.5 with no units attached. That gives you the aspect ratio but doesn't resample the pixels. I think you can do that with the rectangular selection tool, and then use the "Crop" menu command.
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