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06-01-2011, 07:56 AM   #1
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Print sizes

Hey all,

I recently snapped a bunch of great photos at my sister's wedding this past weekend, and I want to print the best photos and make a book for the newlyweds. One photo is particularly amazing, and I'd like to make it as big as I can. What's the largest size print I can get away with on an APS-C camera? If it's relevant, all photos were taken with a KX using the primes in my sig, most of them with the FA 77. Sorry this is a very noob question, never printed before, I mostly just keep a digital collection. Thanks!

06-01-2011, 08:06 AM   #2
Ash
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Hi there.
You can conceivably print to any size you want. Even though 12Mp is theoretically limited to something between an A4 and A3 print size, you can enlarge an image reasonably effectively using a decent post-processing software package and obtain decent enough quality for media such as large canvas prints or banners. The image can be printed at 100% at 240-300 dpi without any appreciable loss of quality on glossy/matte photographic paper. So you should be fine with up to an A3 sized photo book (!).
06-01-2011, 08:07 AM   #3
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So what dpi should I print at? I usually have it at like 2000 in LR when I export.
06-01-2011, 08:28 AM   #4
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2000 dpi? Good God!
Perhaps you mean 200?
I generally stick with 240, but have a read of these tutorials for more info on dpi and printing: Genius Printing :: How Big Can I Print My Image? and Design215 Photography Printing Guide - DPI vs PPI

06-01-2011, 09:44 AM   #5
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The dpi setting in the Exif has no meaning - the dpi of the print will be the number of pixels divided by the size of the print - literally, dots per inch. Just make sure you're saving without actually downsizing (ie, don't get rid of perfectly good pixels). Tell the printer what size you want to print, and dpi takes care of itself.

On the other hand, if you ant to print an image so big that when you divide the print size by the number of pixels, it starts to fall below 200-ish, you *might* want to experiment with using some sort of smart upsizing program that can actually add more pixels to your image. If you don't have really good software for this purpose and don't know how to use it well, then don't bother - you'll probably make it worse. The printer is perfectly capable of upsizing for you and will do so automatically as needed; it's just that some experts using special software might be able to do a better job of it than the printer.
06-01-2011, 10:46 AM   #6
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What ever you do...

Any size picture 6x6, 8x10, 11x17, whatever the size dpi 300.
Then just upload it to costco or sams club.
Change the Image Size to "#x#" dpi 300
Or Crop in inches then Resolution 300
06-01-2011, 12:35 PM   #7
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QuoteOriginally posted by ptwist61 Quote
Any size picture 6x6, 8x10, 11x17, whatever the size dpi 300.
Then just upload it to costco or sams club.
Change the Image Size to "#x#" dpi 300
Or Crop in inches then Resolution 300
Hey thanks for the tip, I think I'll use costco actually.
06-01-2011, 02:59 PM   #8
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I just had Costco print a few enlargements and a canvas for me. I wanted to see what images shot at 6mp would look like. I had 3 printed at 16x20, 3 printed to 20x30 and a canvas printed to 24x18 and they all look great. Many I have shown them to agree. Don't underestimate the resolution of even 6mp.
I have good results with canvas prints from 6mp with ChicCanvas.com also. I had a Groupon for half price 16x20.

06-01-2011, 11:48 PM   #9
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Remember that what looks fantastic at 6"x4" doesn't always look fantastic when blown up. All the little flaws get blown up as well and can become irritating or worse. Be very critical with the image you want to print 'as big as I can'.
06-02-2011, 12:48 PM   #10
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QuoteOriginally posted by spicy cho Quote
Hey thanks for the tip, I think I'll use costco actually.
Go to the Costco site > Log into Photo > Pricing > Digital Photo Services > Photo Resolution, here you'll find the required resolution for each print size . Costco can print 20 x 30 and smaller... Just follow their suggested resolutions/dpi...



QuoteOriginally posted by Nowhere Matt Quote
I just had Costco print a few enlargements and a canvas for me. I wanted to see what images shot at 6mp would look like. I had 3 printed at 16x20, 3 printed to 20x30 and a canvas printed to 24x18 and they all look great. Many I have shown them to agree. Don't underestimate the resolution of even 6mp.
I have good results with canvas prints from 6mp with ChicCanvas.com also. I had a Groupon for half price 16x20.
Good point... back in the day when 7 or 8MP was the in thing, you could easily and I mean easily print up to 24 x 36, just as long as you knew how to prep files for printing... Printing sizes have not changed one iota in several years...
06-02-2011, 02:16 PM   #11
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Some may not like this, but it works for me:
Take the picture size in pixels and divide it by 100. That's the biggest in inches you can print with good quality. That translates to 100dpi prints.
I've done up to 20"x30" from my 6MP K100DS with excellent results.
Of course, the more dpi IN THE PRINT NOT THE EXIF the better.

Thanks,
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