Tip of the Month
How
Much Resolution Do I Need to Make Sharp Prints? Question:
You want to buy a digital
camera. Seems like most have more options
than
a 2005
Cadillac. You can't
go wrong with most of the major camera makers. But
one question always comes up.
"How many megapixels do I need to make sharp pictures?"
Answer:
Let's say you have a budget
of $400. That will buy a good quality, 4
megapixel(MP) camera with some money left over
for a memory card (the new "film"). But
is 4MP enough for big prints?
Let's find
out.
As a general rule of thumb, yes, 4 megapixels
will be enough to make good quality prints, up to about 16x20 inches
(and larger with software interpolation). If you want to make big
enlargements, be sure set your camera on the highest resolution setting
it
can have, whatever it's called – Super-Fine, Super High, Extra
Fine – they
all mean "this is the most pixels I can put in your picture".
Anything less than the highest setting, and the picture will be softer
when enlarged.
OK, on to the printing aspects.
In printing pictures, PPI is what matters.
PPI stands for Pixels Per Inch and
it's how digital printers lay down the ink. It's simple. The
more pixels in the picture, the clearer,
sharper and larger photo you can make. 8 megapixel cameras are much clearer
and sharper at large print sizes than 2 megapixel cameras because they
provide more pixels for the printer to print. However, we have gotten
large prints out of a 2 MP camera set on its highest setting, it's just
not super sharp. We have found that you need to have a
minimum of 100 PPI to make a decent digital
print. Our large format printer prints at 600 DPI (Dots Per
Inch), so it will give you the best looking prints ever (just don't
confuse that with PPI, it's different).
Here's a visual illustration to show image quality
versus size of the final print for three common camera resolutions:

So, if you're taking photos and want to blow them up to "Giant Photos", you need to have the resolution
set to the highest possible resolution to get the best looking large format photo.
And one thing to remember is that people don't view large prints up close like
they do 4x6's. Viewing distance can help ease the pain of a softer photograph.
Call us if you have questions about something you want to enlarge. We would
love to serve you!
Keep Clicking!
Sincerely,
Your friends at Giant Photo,
- Alfred, Helene, Sue and Crew
Same great service, better location!
800-99-GIANT (800-994-4268) · (619)
232-1371
3617 India Street
San Diego, CA 92103-4740
www.giantphoto.com
We're open 8:00 AM to 5:30 PM Monday thru Friday
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