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Need some advice...!
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Jan 5, 2012 10:12:02   #
heltonjkv96 Loc: southwest Virginia
 
I would like to have some prints made 20x24...what should be my dpi resolution be? Should it be larger than 10.0MB?
Any help would be appreciated!

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Jan 5, 2012 10:16:50   #
docrob Loc: Durango, Colorado
 
heltonjkv96 wrote:
I would like to have some prints made 20x24...what should be my dpi resolution be? Should it be larger than 10.0MB?
Any help would be appreciated!


300 dpi and yes it will be around 80mb give or take

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Jan 5, 2012 10:24:01   #
ltruex Loc: Waco TX
 
I have a 21mp camera and that size of printed image would be a strain and successful only if I had a perfect exposure, no image shack of any kind, and all data settings were in agreement with a maximum size printed image...then maybe. And it would help if I read the thread more carefully...dpi settings for a printer that can produce a 20x24 print at least 300 dpi resolution. L3
heltonjkv96 wrote:
I would like to have some prints made 20x24...what should be my dpi resolution be? Should it be larger than 10.0MB?
Any help would be appreciated!

Reply
 
 
Jan 5, 2012 10:38:30   #
MWAC Loc: Somewhere East Of Crazy
 
I shot with a Canon 40D, it's 10 wonderful mega pixels and have printed 24x36 with no issues.

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Jan 5, 2012 11:01:03   #
Swamp Gator Loc: Coastal South Carolina
 
I have a 20-30 poster print on a wall of a lightning shot on the beach that I took about 5 years ago with a Canon A630 P&S. The adjusted image file I used to make the print was approx. 1MB and believe it or not the print looks fine.
Well... as viewed from a distance, as you would normally look at a photo that size.

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Jan 5, 2012 11:45:43   #
heltonjkv96 Loc: southwest Virginia
 
I was thinking of ordering one from shutterfly.com, The photo is 14.4MB, the camera is 15.1mp, this is the photo



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Jan 5, 2012 12:17:50   #
steve40 Loc: Asheville/Canton, NC, USA
 
File size of an image in MB, has nothing to do with printing. You go by format size; example 1200x1600 divided by 300dpi equals an image size of, 4x5.3.

However! you don't need 300dpi, unless you are going to hang your images in an art gallery. I have printed quite a few 8x10's, using a 1200x1600 image format, that were quite good. This translates into 150dpi, which viewed from room distance is fine.

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Jan 5, 2012 12:31:01   #
heltonjkv96 Loc: southwest Virginia
 
steve40 wrote:
File size of an image in MB, has nothing to do with printing. You go by format size; example 1200x1600 divided by 300dpi equals an image size of, 4x5.3.

However! you don't need 300dpi, unless you are going to hang your images in an art gallery. I have printed quite a few 8x10's, using a 1200x1600 image format, that were quite good. This translates into 150dpi, which viewed from room distance is fine.


mine is 4752x3168 dpi 350, what would that be?

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Jan 5, 2012 12:32:34   #
heltonjkv96 Loc: southwest Virginia
 
I'm not sure how you calculated that...

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Jan 5, 2012 13:39:19   #
Lucian Loc: From Wales, living in Ohio
 
DPI depends on the printer maker. I believe a canon can use 300dpi but some others like Fuji want about 260 or so as the optimal dpi, more is a waste of space. Epson for example require 340 dpi for best results, whether this is a home printer or pro printer at a lab. I can't recall the exact number for Epson but it is over 300 and less than 350dpi for best results.

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Jan 5, 2012 13:53:44   #
steve40 Loc: Asheville/Canton, NC, USA
 
Quote:
mine is 4752x3168 dpi 350, what would that be?


The print size would be: 10x15 @ 300dpi, 15x23 @ 200dpi, and 31x21 @ 150 dpi. But the size of the image you can print is limited, by the printers maximum output. Your average consumer printer, will print up to a 8.5x11. My commercial graphics printer will print up to a 13x19, there are some that will print bigger, but they are big $$ also.

Because my Canon printer will print 600dpi B&W, and up to 2400dpi color, that does not mean every print will be that. The printers output will vary, according to the size of the printed image. Which is based, on the image format.

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Jan 5, 2012 14:12:59   #
heltonjkv96 Loc: southwest Virginia
 
steve40 wrote:
Quote:
mine is 4752x3168 dpi 350, what would that be?


The print size would be: 10x15 @ 300dpi, 15x23 @ 200dpi, and 31x21 @ 150 dpi. But the size of the image you can print is limited, by the printers maximum output. Your average consumer printer, will print up to a 8.5x11. My commercial graphics printer will print up to a 13x19, there are some that will print bigger, but they are big $$ also.

Because my Canon printer will print 600dpi B&W, and 2400dpi color, that does not mean every print will be that. The printers output will vary, according to the size of the printed image. Which is based, on the image format.
quote mine is 4752x3168 dpi 350, what would that ... (show quote)


thank you for the input...

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Jan 5, 2012 19:33:37   #
pigpen
 
I've been told by several people that the dpi thing is more about monitor res, not print res.

A little over a year ago, when I first went digital (T2i 18mp), I knew nothing of dpi. I sent an image to be printed at 20 x 30. I was asked by another photographer what I set my dpi to. I made no adjustment to dpi. He told me that my computer automatically downloads at 72 dpi, and to expect my image to come back looking terrible. I went home and checked my image in PSE9, and it was 5184 x 3456 pixels and 72 dpi.

The image came back tack sharp. The other photographer told me the printer must have made the adjustment to 300 dpi. Contacted the printer, and they said they make no such adjustments to images sent to them. After doing some research, I found several people saying that the dpi size was an antiquated measurement. Its all about the pixels. All I know is that I printed many large prints without adjusting to 300 dpi, and sold most of them.

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Jan 5, 2012 19:53:40   #
SpiffyPhoto Loc: Southern Wisconsin
 
heltonjkv96 wrote:
I would like to have some prints made 20x24...what should be my dpi resolution be? Should it be larger than 10.0MB?
Any help would be appreciated!


For a 20x24 print you will need a minimum resolution requirement of 1280x1536 pixels . Now keep in mind this is a minimum, more is better. :)

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Jan 5, 2012 19:57:01   #
SpiffyPhoto Loc: Southern Wisconsin
 
pigpen wrote:
I've been told by several people that the dpi thing is more about monitor res, not print res.

A little over a year ago, when I first went digital (T2i 18mp), I knew nothing of dpi. I sent an image to be printed at 20 x 30. I was asked by another photographer what I set my dpi to. I made no adjustment to dpi. He told me that my computer automatically downloads at 72 dpi, and to expect my image to come back looking terrible. I went home and checked my image in PSE9, and it was 5184 x 3456 pixels and 72 dpi.

The image came back tack sharp. The other photographer told me the printer must have made the adjustment to 300 dpi. Contacted the printer, and they said they make no such adjustments to images sent to them. After doing some research, I found several people saying that the dpi size was an antiquated measurement. Its all about the pixels. All I know is that I printed many large prints without adjusting to 300 dpi, and sold most of them.
I've been told by several people that the dpi thin... (show quote)


Right on ...... 80 - 100 dpi works great ......

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