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DPChallenge Forums >> Photography Discussion >> Upsampling photos for publicationn
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12/29/2007 06:36:42 PM · #1
Can anybody help me with this? I'm looking to submit photos to a publication, whose requirements for digital photos are as follows:

• Only images shot at 300 dpi 11 x 17 in. will be considered for publication
• Never resize in Photoshop

With my D200, RAW files are shot at 3872x2592 pixels at 240 dpi. Do these requirements mean that I can't upsample in the Camera Raw file processing in Photoshop? 11x17in. @ 300 dpi would mean something like a 17-megapixel camera, wouldn't it? I guess that's assuming you can't upsample.

Anybody have any advice?
12/29/2007 07:10:34 PM · #2
You don't have any choice but to resize it to meet the first requirement. Sounds like they are only interested in MF shots. Or you could just do it and not say anything and see what happens.
12/29/2007 07:20:06 PM · #3
Thanks for the response, routerguy. Doesn't it seem weird that they wouldn't accept anything but MF shots? So many people are shooting with pro-SLRs for magazines it seems.
12/29/2007 07:26:40 PM · #4
What is the contest/magazine?

As I understand it a lot of magazines only deal with MF due to the resolution/size that the format can deliver. Pray to your god(s) that Canon delivers on the big megapixel jump in the next couple years that they are rumored to be working on. Then it won't be an issue.
12/29/2007 07:36:17 PM · #5
It's Outside magazine. Also, I'll be praying to the Nikon gods, sorry.

The weird thing is, I've seen photos in there that have been said to be captured with D200s. I guess they're upsizing?
12/29/2007 07:43:55 PM · #6
It could be an old rule that hasn't been updated. 11x17 @ 300 dpi is 3300x5100. 2500x3800 is only a moderate upscale and I highly doubt they would be able to tell that you upsized from the picture itself (using CS2 or higher). They may be able to tell, however, from the EXIF or knowing you took it with a D200.

Even a D5 is only 2900x4300. So basically they are saying you need a 1Ds II or a film camera and a scanner.
12/29/2007 07:48:00 PM · #7
Originally posted by drewseph:


• Never resize in Photoshop

I'm sure that was said because it isn't as simple as resizing, and all too often too small of an original is attempted to be made too big. DPCPrints is picky as well and will reject anything not clean enough (they sell to the public and have a money back guarantee and don't like returns), especially if the re sampling was done hastily.
I have a number of DPCPrints that have been bumped in Photoshop:


# Print File Specs Width: 7200
# Height: 5400
# Size: 13.9mb
# Aspect: 1.33:1


# Print File Specs Width: 4500
# Height: 6000
# Size: 13.9mb
# Aspect: 1.33:1


# Print File Specs Width: 4800
# Height: 7200
# Size: 15.4mb
# Aspect: 1.50:1

There's no way these are straight out of the mighty Canon 350D/XT Rebel.
Some of the DPCPrints were doine with a 3.7MP Olympus E--10 camera.
12/29/2007 08:03:16 PM · #8
So is it best to upscale in CS2 simply by changing the output in the Camera Raw workflow to something acceptable like 3427x5120?
12/29/2007 08:10:21 PM · #9
Not sure simply is the best thing here. There are a number of programs made specifically to do that, and I'm sure other will chime in here as to what they are. I do it in a number of steps in CS2, very small increments, starting with going up in 5% steps, starting with bicubic smoother twice, down once in bicubic sharper, up twice in bicubic smoother, down once in bicubic sharper. These are just general starting points and depend greatly upon the initial quality of the image. Often when at full resolution, I zoom way in and do some final clean-up with the clone tool, especially along edges with a high contrast definition edge and also clean up any white halos using the clone tool in darken mode. It takes time, but can be done. Rare I ever get an image rejected anymore since I figured out a way to do it, and just makes my day when I get 30x40" print approval.

Message edited by author 2007-12-29 20:12:02.
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