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FORUMS Post Processing, Marketing & Presenting Photos RAW, Post Processing & Printing 
Thread started 29 Jan 2010 (Friday) 16:42
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maximum size I can print with this info

 
gdl357
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Jan 29, 2010 16:42 |  #1

I found an image on the net that I would like to print in 13" x 19" if possible. What would be my maximum for great IQ...8 x10? 11 x 14?

the info:

.jpg 1.75MB
1920 x 1440
V & H DPI = 96
24 bit depth.

Thx


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René ­ Damkot
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Jan 29, 2010 16:52 |  #2

All copyright issues aside, 1920x1440 will print well at 6.4x4.8" (300 ppi) and "okay" at 12.8x9.6" (150 ppi)


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gdl357
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Jan 29, 2010 16:56 |  #3

René Damkot wrote in post #9499881 (external link)
All copyright issues aside, 1920x1440 will print well at 6.4x4.8" (300 ppi) and "okay" at 12.8x9.6" (150 ppi)

I just emailed the Owner Steve Fu, to get permision to print it or to get a better resolution one if it was possible.

so basically at 96 DPI I can get a 4 x 6 or 5 x 7 at the max?

wow i'm lost... how can a more PPI pic print smaller than a less PPI pic?


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tepic
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Jan 29, 2010 18:13 as a reply to  @ gdl357's post |  #4

PPI = pixels per inch

A 900x600 image would be 3" x 2" at 300 ppi.

The same 900x600 image would be 6" x 4" at 150 ppi.

1920/96ppi x 1440/96ppi = 20" x 15" at 96ppi, but that's not going to look very good.




  
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tonylong
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Jan 29, 2010 18:17 |  #5

Tepic, you seem to be mixing something up -- if you print a 4x6 print, you will get a "good quality" print at 300ppi. If you print larger, you get less ppi, which eventually will result in an inferior image. The second size that René mentioned, 9.6x12.8, will print at 150 ppi, which is considered acceptable -- not great, but usable. Printing larger than that means that the image "crispness" will break down because fine detail will get spread over paper making things look mushy or even pixellated. If you view this at a distance, OK...but don't expect a nice sharp poster.

If the photog is willing to give you a high resolution file, you should be good, I've printed photos of 4 MP and up with reasonable results on 13x19 paper.


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tzalman
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Jan 29, 2010 18:49 |  #6

how can a more PPI pic print smaller than a less PPI pic?

Because if you use more Pixels Per Inch of paper. you will run out of pixels faster and reach the end of the printed area sooner.


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mrknowitall
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Jan 29, 2010 19:55 |  #7

ignore the 'V & H DPI = 96' info you found in the file. It is worthless to this subject and confusing to your understanding.




  
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tepic
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Jan 30, 2010 01:24 |  #8

tonylong wrote in post #9500395 (external link)
Tepic, you seem to be mixing something up -- if you print a 4x6 print, you will get a "good quality" print at 300ppi. If you print larger, you get less ppi, which eventually will result in an inferior image.

Yes, that's what I'm saying here:

A 900x600 image would be 3" x 2" at 300 ppi.

The same 900x600 image would be 6" x 4" at 150 ppi.

tonylong wrote in post #9500395 (external link)
The second size that René mentioned, 9.6x12.8, will print at 150 ppi, which is considered acceptable -- not great, but usable. Printing larger than that means that the image "crispness" will break down because fine detail will get spread over paper making things look mushy or even pixellated. If you view this at a distance, OK...but don't expect a nice sharp poster.

If the photog is willing to give you a high resolution file, you should be good, I've printed photos of 4 MP and up with reasonable results on 13x19 paper.

gdl357 said he wanted to print at 96dpi (dpi = ppi, right?) so that would be this part:

1920/96ppi x 1440/96ppi = 20" x 15" at 96ppi




  
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mrknowitall
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Jan 30, 2010 02:03 |  #9

No, he didn't say he wanted to print at 96dpi. The image info says it is 96dpi. But that is useless information (in fact it's not even information, but rather just an arbitrary number). A 96dpi print looks like junk so lets not even think about it. The image info could just have easily claimed it was 10dpi. Doesn't mean anything.

The image has so many pixels. You choose how many inches big a print will be. That determines the pixels per inch. Not whatever is set in the exif info.




  
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tzalman
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Jan 30, 2010 06:09 |  #10

mrknowitall wrote in post #9502655 (external link)
No, he didn't say he wanted to print at 96dpi. The image info says it is 96dpi. But that is useless information (in fact it's not even information, but rather just an arbitrary number). A 96dpi print looks like junk so lets not even think about it. The image info could just have easily claimed it was 10dpi. Doesn't mean anything.

The image has so many pixels. You choose how many inches big a print will be. That determines the pixels per inch. Not whatever is set in the exif info.

+1
I suspect that 96 was tagged on to the image by the original photographer who mistakenly thought it needed to have a monitor display resolution for the web. This is silly, of course, because an image on any given monitor is inevitably seen at that particular monitor's resolution and no tag can ever change that.


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gdl357
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Jan 30, 2010 11:59 as a reply to  @ tzalman's post |  #11

Guys thanks for that little tutorial. I now understand sizing and resolution when it comes to printing.

Still no answer from him...I think he is laughing at my email. Now why would he give me his hi resolution file? just to make me happy? not that many people out there that would do it...but I would. Infact I would take it as a great compliment.

Also... this Canon 9500 MK II is just fantastic. For those that are thinking of purchasing it...I 100% approve of it. I use Canon PT-101 Platinum Pro paper and te results are mouth watering. As stupid as this sounds...ever since I bought my first Umbrella/stand and this printer, it feels like I own a photo studio at home.

I just bought it a nice vinyl dust cover from this site. http://www.digitaldeck​covers.com/canon-cart.htm (external link)

Also to comliment the printer, you really need to have a good peper trimmer...so I ended up buying a Rotatrim M18 duel rail trimmer.No matter how I tried not to spen the extr cash on the cutter, I always come back to the Rotatrim...so I bought it just to shut my subconscious up.


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