I'm looking for an easy way to view a simple slideshow of photos with 1x1 pixel ratio, with play/pause button. I want 1 image pixel to be equal to 1 retina screen pixel, as shown by default with Preview. The borders of the screen should be black as in any simple slideshow (the images being smaller than 2880 pixels).

The default slideshows (Preview and QuickLook and iPhoto) upscales the images ! I don't want to pay for any software (Aperture or other), this slideshow can be done with javascript and a web browser !

  • 2
    Have you tried Preview's Full Screen mode (not Slideshow)? You can use View > Actual Size to turn off scaling. – duozmo May 8 '13 at 21:32
  • (+1) The full screen mode actually gives the right ratio and borders, but can not be automated, it requires the user to press a key to view the next image. – Emile May 9 '13 at 8:42

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