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07/13/2007 08:20:13 PM · #1 |
Hey there. Quick one here for ya.
I've been following a video tutorial about Photoshop learning more and more about it. Anyways, the guy in there at one point shows that everytime you load a photo into PS you should go to image size, and click off Resample image... then adjust your resolution to 300 pixels per inch. Mine loads at 230 p/inch. Wondering if this is necessary because with my 6mpixel camera I go from a photo at 12x9 to something around 9x7 which means I can't get any bigger then an 8x6 now without loosing quality(no 10x8's or even stretching for a 12x10). Is this really necessary for a good looking photo or not?
It kind of makes my 6mpixel camera feel more insignificant for getting good looking prints done.
Also, well I'm at it. If I resize a photo to 6x4 in photoshop or if I had a photo in PS at 12x8(double 6x4) Would I see any difference in quality at the printshop or on a kodak kiosk? Would the 12x8 look better? I've been printing at 12x8 but now that I've been doing this 300p/inch thing I no longer can and so I'm worried by doing this I'm actually going to loose quality as well for a 6x4 photo. |
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07/13/2007 08:32:32 PM · #2 |
| The pixels per inch only counts when printing. |
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07/13/2007 08:41:41 PM · #3 |
Those tutorials are used as a guideline Drew... a rule of thumb. In fact it is a myth that having a 6mpxl camera will not give you high quality prints of any size. The reality is that you actually can print larger images with a lower resolution simply because the minimum viewing distance is farther away. If you go to Smugmug Print Quality it will explain it all a bit better there than I could go into.
But, the short answer is that 6 mpxls is fine for good looking prints (of just about any size) so long as the image itself is a quality image. I shoot with a 5 mpxl dSLR and the quality of prints amazes people when I show them prints from 8x10 all the way up to 30"x40".
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07/13/2007 08:45:29 PM · #4 |
| Heck - I have some prints at 8x10 with my 2mpixel P&S that people swear were taken with a 8 or 10 mpixel camera. I have easily blown up my 6 mpixel images to 16x20 without any loss of resolution. |
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07/13/2007 09:07:22 PM · #5 |
| does that mean I should not bring the resolution to 300 or leave it at the 230? |
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07/13/2007 09:18:27 PM · #6 |
Originally posted by drewhosick:
does that mean I should not bring the resolution to 300 or leave it at the 230? |
You don't have to bother with it. Unless you're resampling there is no difference. |
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07/13/2007 10:20:44 PM · #7 |
| How about if I bring the photo to be printed at one of those Kodak Kiosks... Does that system automatically resample for me? |
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07/13/2007 10:41:32 PM · #8 |
| Your image has a certain number of pixels. If you make your print bigger, the number of pixels that are printed per inch in the photo (ppi), would decrease. If you make your print smaller, the number of pixels per inch will increase. It's really simple, I think you are overcomplicating it and confusing yourself. |
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07/14/2007 12:16:06 AM · #9 |
Originally posted by drewhosick:
How about if I bring the photo to be printed at one of those Kodak Kiosks... Does that system automatically resample for me? |
You're making it more complicated than it is. Your image has a set number of pixels. the larger the printed image you have the fewer the pixels per inch you will have in that image... the smaller the printed images dimensions then them greater the number of pixels per inch you will have. The Kiosk does all this stuff automatically. You just tell it what size print you want and it will do what it needs to do to print the image.
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07/14/2007 01:42:47 AM · #10 |
| It would be interesting to take the same picture and print it twice with the two different pixels sizes. I never mess with my pixel size and I print 16x20 prints quite a bit. |
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07/14/2007 02:21:32 AM · #11 |
The question whether you should resample depends on what size you're going for.
A 6MP photo is 3072x2048. At 230PPI that's 13.35"x8.90"
If you go up to 18"x12", it's only 170PPI. At 42"x28" it's 72PPI.
If the size of the image stays the same, and the print grows larger, the PPI shrinks. So... if you want to print large photos, yes, upsampling can be a good idea. |
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