Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
05-01-2010, 11:27 PM   #1
Veteran Member
hockmasm's Avatar

Join Date: Apr 2010
Photos: Albums
Posts: 354
Why does k-x images open at 72dpi in Photoshop?

new to DSLR. k-x when opening files from card in Photoshop they are 72dpi. Any idea why its not 300 or 350??

05-02-2010, 04:46 AM   #2
Veteran Member

Join Date: Jan 2009
Location: National Capital Region
Posts: 738
Photoshop is reading it from the EXIF data created by the camera, and the 72dpi has no significance.

Dots Per Inch only applies to print. Not that it means when you print these images they will print at 72dpi, either. The actual dpi when printing depends on the size of the image, measurements of the print and printer's capability.
05-02-2010, 06:19 AM   #3
Wheatfield's Avatar

Join Date: Apr 2008
Location: The wheatfields of Canada
Posts: 10,157
The camera manufactuters doesn't know what the final image resolution will be, so it defaults the EXIF to the only (more or lesss) accepted default in the industry, which is the 72 dpi screen resolution.
As esbee said, it is a relatively meaningless number, though it is handy when resizing an image for print to use it and let the computer do the math.
05-02-2010, 10:20 AM   #4
Veteran Member
khardur's Avatar

Join Date: Feb 2007
Location: NW Massachusetts
Photos: Gallery
Posts: 1,505
Here's another thing you can do to ease your concern. Open the image in PS. Ctrl-Alt-I (image resize) - make sure "resample image" is unchecked... and change the resolution from 72 to 300.

Take note of the "document size" numbers at 72ppi and then when you change to 300ppi. This will show you what size you can print and still achieve 300ppi.

05-02-2010, 10:35 AM   #5
Inactive Account

Join Date: Mar 2009
Location: Coral Springs, FL
Photos: Gallery | Albums
Posts: 5,216
72 is monitor resolution, so it defaults to that.

  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
camera, dslr, k-x, photography
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
Photoshop CS3 won't open Kx PEF files RomeoCrugnale Pentax DSLR Discussion 7 12-03-2009 10:09 AM
Photoshop CS3 won't open K20d PEF files GeneV Pentax DSLR Discussion 4 06-26-2009 04:47 PM
FA77 and DA70 WIDE OPEN images: Let see 'em! maxwell1295 Pentax SLR Lens Discussion 31 05-20-2009 10:02 AM
i cant view or open RAW images on my pc,, distorted_vision Photographic Technique 13 11-23-2007 06:19 PM
"Adding" images in Photoshop doesn't work aerodave Digital Processing, Software, and Printing 3 10-16-2007 04:07 AM

All times are GMT -7. The time now is 02:18 PM. | See also:, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]