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DPChallenge Forums >> Photography Discussion >> Question regarding cropping
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07/27/2010 09:53:25 AM · #1
I have to supply several photos to a media company for some window displays they are having. I'm a little bit unsure of the best way to crop these as I want to supply them to the right ratio but kept at maximum resolution from the camera.

The dimensions for the windows are 2432mm x 2010mm. They want the images supplied at the right ratio.

Which would be the best way to use the crop tool to get it at the right ratio for this? I need to use the perspective option with the crop to pull the angles back slightly as well so it needs to be done with the crop tool.

So, there's the dumb question. What dimensions should I put for the crop? Obviously I don't want to put it at the window size as they'll be enormous files at 300dpi.

Any suggestions?

Message edited by author 2010-07-27 09:54:15.
07/27/2010 10:04:23 AM · #2
Decimal places work. (at least with photoshop)

so 2.432:2.010 etc...

Fix the perspective first though before you crop.
07/27/2010 10:06:03 AM · #3
I don't know how Photoshop does it, but in PaintShop Pro, I would type in those dimensions (In either mm or pixels), then click the checkbox to maintain aspect ratio. Once I do that, I can resize the box as appropriate and keep the proper proportions.

Message edited by author 2010-07-27 10:07:09.
07/27/2010 10:12:46 AM · #4
In Photoshop, select the Rectangular Marquee tool, choose "Fixed Ratio" from the drop down menu, and put in your dimensions into the "Width" and "Height" boxes. This will allow you to create any size you want while keeping the right aspect ratio. The highest value you can use is 999, so in your case I would use something like 2.432 x 2.010
07/27/2010 10:32:52 AM · #5
Originally posted by jeger:

In Photoshop, select the Rectangular Marquee tool, choose "Fixed Ratio" from the drop down menu, and put in your dimensions into the "Width" and "Height" boxes. This will allow you to create any size you want while keeping the right aspect ratio. The highest value you can use is 999, so in your case I would use something like 2.432 x 2.010


So then basically leaving it at the 300dpi that it currently is?
07/27/2010 10:37:08 AM · #6
Originally posted by Makka:

Originally posted by jeger:

In Photoshop, select the Rectangular Marquee tool, choose "Fixed Ratio" from the drop down menu, and put in your dimensions into the "Width" and "Height" boxes. This will allow you to create any size you want while keeping the right aspect ratio. The highest value you can use is 999, so in your case I would use something like 2.432 x 2.010


So then basically leaving it at the 300dpi that it currently is?


This will help you get the proper ratio.

You might not be able to avoid a large file size since the dimensions are fairly large. Keep in mind, when you print something up that big, you aren't meant to be standing right in front of it. You'll probably want to be 5-6 feet back from the print. Maybe you don't need 300 dpi?
07/27/2010 10:42:15 AM · #7
I always remove the dpi, leaving the box blank. No idea if it is right or not, but seems intuitive - by having a figure in the box, you are automatically constraining the size.
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