Print size question
Jun 5, 2023 16:40:18 #
BebuLamar wrote:
300ppi is about all the printer can print. I don't know of a printer which can print better than 400ppi even if you feed it a 24MP file and ask it to print a 4x6" print.
No printer can print PPI. 300DPI is normal for a standard inkjet printer. Dedicated photo printers can go much higher. My Canon Pixma Pro 100 can do 4800 dpi horizontal by 2400 dpi vertical.
Jun 5, 2023 16:48:49 #
SuperflyTNT wrote:
No printer can print PPI. 300DPI is normal for a standard inkjet printer. Dedicated photo printers can go much higher. My Canon Pixma Pro 100 can do 4800 dpi horizontal by 2400 dpi vertical.
but it can't do more than 300 or 400ppi because each of the dot can only be 1 ouf of 8 colors (it has 8 ink cartridges). To do 16,777,216 colors it has to use a group of dots to represent a pixel of the image. So this group of dots is significantly larger than the dots.
Jun 5, 2023 16:57:53 #
Why not get enlargements printed on photo emulsion paper at a lab?
Jun 5, 2023 17:09:49 #
petercbrandt wrote:
xxxxxxxxx br You can use most photo manipulation p... (show quote)
A good custom lab will do that sort of thing. 6MP is 3000x2000 pixels. I wouldn't want to photograph a group of 300 high school seniors with just 6MP, as such an image invites pixel peepers to find their classmates. But a head-and-shoulders composition of a single person, or a couple, would be fine for a 40x60 print from such a file. Many sorts of images do not require a lot of detail, because they are made to be viewed as WHOLE compositions, rather than with a magnifier.
I liken this to a 55-inch true HDTV, which has 1920x1080 pixels. Yet it appears sharp from six feet away. Yes, the pixels are visible from a foot, but who views a 55" screen from one foot?
Likewise, a 55-inch 4K TV has 3840x2160 pixels. It will appear sharp from three feet away, because it has four times the pixels. Again, the pixels are visible from a foot, but who views a 55" screen from one foot?
It's all a game of perspective.
Jun 5, 2023 17:12:28 #
burkphoto wrote:
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I liken this to a 55-inch true HDTV, which has 1920x1080 pixels. Yet it appears sharp from six feet away. Yes, the pixels are visible from a foot, but who views a 55" screen from one foot?
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I liken this to a 55-inch true HDTV, which has 1920x1080 pixels. Yet it appears sharp from six feet away. Yes, the pixels are visible from a foot, but who views a 55" screen from one foot?
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Pixel peepers............
Jun 5, 2023 18:14:59 #
R.G. wrote:
If pixelation was going to be a problem you could use upsizing software. The only thing that you'd be missing when compared to starting with a higher resolution photo is microdetail - which you'll miss only if you see a side-by-side comparison.
Thaz the WHOLE deal, right near the top of page one, despite the 10 to 20 pages of stuff shirts that must inevitably follow (and which have already begun).
Jun 5, 2023 18:56:41 #
therwol
Loc: USA
PHRubin wrote:
My monitor is about 14 inches wide. The display resolution is 1280 X 1024.
1280x1024 is prehistoric. I once had a laptop that was 1280x1024. That was 17 years ago.
Jun 5, 2023 18:59:17 #
therwol wrote:
1280x1024 is prehistoric. I once had a laptop that was 1280x1024. That was 17 years ago.
1280x1024 is kind of rare. They were often 1024x768 then they have 1280x800 when they started to go widescreen. The 5:4 aspect ratio of the 1280x1024 is not common.
Jun 5, 2023 19:51:21 #
Thanks to all that responded, at least now I have a better understanding of the situation.
Jun 5, 2023 20:40:22 #
CHG_CANON wrote:
Bytes have nothing to do with digital print files, pixels do.
Do you mean a print shot taken with a 45 MP camera printed at 300 dpi will be no better than a shot taken with an 8 MP camera printed at 300 dpi?
Jun 5, 2023 21:30:27 #
Bridges wrote:
Do you mean a print shot taken with a 45 MP camera printed at 300 dpi will be no better than a shot taken with an 8 MP camera printed at 300 dpi?
You referenced GB, an attribute of disk storage that has nothing to do with printing pixels. If you don't know that, go read up on the subject. Actually, who knows that you meant by GB...
Jun 5, 2023 23:01:25 #
Bridges wrote:
Do you mean a print shot taken with a 45 MP camera printed at 300 dpi will be no better than a shot taken with an 8 MP camera printed at 300 dpi?
Entirely possible that there will be zero difference. Specifying the really important parameters might get you a different answer. But yes you can reduce a 45MP image to 8MP with no loss when printed at 300dpi.
Jun 6, 2023 05:55:06 #
Elmo55 wrote:
I need some clarification: My understanding is that if you take the pixels dimensions, and divide by 300 that will give you the size that you can safely expect to be able to print. i.e. for example, if the size is 6000X4000, then you can print it 20"X13.3".
That's the way to go if you only plan to view the image like a book or a magazine.
Elmo55 wrote:
Keeping that same ratio, can you print it larger? Say 60X39.9(or 40 for round numbers). Thinking primarily about landscape pano's.
Some billboards you see pasted on streets or buildings are taken with 12megapixel cameras.
Viewing distance is what limits the the size you can print.
The further the distance, the bigger the file can be printed and still look good.
Just to push the idea, consider that previously, monitors are just 72dpi or has only 72 distinct dots in every inch to show an image at a table top viewing distance, and it was perfectly acceptable.
Jun 6, 2023 06:31:29 #
CHG_CANON wrote:
You referenced GB, an attribute of disk storage that has nothing to do with printing pixels. If you don't know that, go read up on the subject. Actually, who knows that you meant by GB...
Sleep deprivation. I Meant MP, not GB.
Jun 6, 2023 06:45:34 #
Also if you are using a good quality print lab, they can tell you if your photo will look good when you upload it . I know Nations Photo has told me a couple times that they wouldn't print a couple of pics out of my SX50 as large as I wanted them because it just wouldn't look good! Also, they don't want you to blame them for a bad print instead of blaming yourself for blowing it up that big.
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