My camera, like most DSLRs, captures images with an aspect ratio of 1.5. This information tells you nothing about the actual pixel dimensions of the image – it only tells you the total number of pixels that make up the image. So my camera, for example, captures 14.6-megapixel images, which is around 14,600,000 pixels per image (14.6 x 1,000,000). This way you get the best of both worldsTechnically, a megapixel is equal to 1,048,576 pixels in reality, camera manufacturers round this number to 1,000,000 when stating how large of an image the camera will capture. That will let you either edit in iPhoto (double click on the thumbnail) or in PS (Control-click on the thumbnail and seledt 'Edit in external editor' in the Contextual menu). If you want to use both iPhoto's editing mode and PS without having to go back and forth to the Preference pane, once you've selected PS as your editor of choice, reset the Preferences back to 'Open in main window'. Also I suggest the Maximize PSD File Compatabilty be set to Always. NOTE: With Photoshop Elements 6 the Saving File preferences should be configured: This method will let iPhoto know that the photo has been editied and will update the thumbnail file to reflect the edit. You'll need to either select JPEG from the menu and save (top image) or click on the desktop in the Navigation window (bottom image) and save it to the desktop for importing as a new photo. Window that indicates that PS wants to save it as a PS formatted file. If you immediately get the JPEG Options window make your selection (Baseline standard seems to be the most compatible jpeg format) and click on the OK button.

When you're finished editing click on the Save button. Using Photoshop (or Photoshop Elements) as Your Editor of Choice in iPhoto.ġ - select Photoshop as your editor of choice in iPhoto's General Preference Section's under theĢ - double click on the thumbnail in iPhoto to open it in Photoshop. This may be preaching to the choir but here are some tips on using PS from within iPhoto: Then when you crop to 4圆 it will create a 4圆 image at the resolution you selected. Or when you set the crop dimensions in Photoshop at the top put your dpi resolution value in the Resolution field in the top tool bar.

Be sure to have Constrain Proportions and Resample Image both checked. Next, after cropping the image to the 4圆 ratio, go to the Image->Image Size menu and put in the dpi you want to print at in the Resolution field. First crop the image to 4圆 size ratio in Photoshop.

Dimension foto 4x6