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How do I set my Nikon 5100 to shoot pictures that come out under 500 pixels? I want to upload pictures to my website.

Sherry Lane
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    Uh...... you do know you can resize images, right? – Fake Name Sep 30 '14 at 21:48
  • That's not very many pixels. It's 22x22 pixels. That's tiny. In any event you can resize it in any image editing program. – user4894 Oct 01 '14 at 01:11
  • Upload it on 500px! ;) – clabacchio Oct 01 '14 at 14:53
  • This is an image manipulation question as cameras do not support on-the-fly resizing. – TFuto Oct 01 '14 at 16:25
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    @TFuto Sure they do. Most let you select from a number of resolutions before shooting. And some even let you do it after the fact. – Michael C Oct 01 '14 at 19:34
  • @MichaelClark: choosing the resolution before shooting is technically not on-the-fly conversion, it is encoding. Conversion usually involves decoding to a target representation space and then re-encode it. – TFuto Oct 01 '14 at 22:50
  • @TFuto Choosing the resolution in camera means that the sensor output is read at full resolution and then the image is resized when it is converted to JPEG. So YES, it really is on-the-fly conversion. – Michael C Oct 02 '14 at 07:55
  • @MichaelClark: Thanks for the lecture ;-). But the only conversion that takes place there is the ADC, which is not image manipulation. After that, the saving in RAW or JPEG is properly called encoding, not conversion. From sensor to JPEG, you do a raw data-to-encoded-form encoding (it can be resized, contrast-enhanced, whatever - it is part of the encoding pipeline). If you take a "cooked" dataset, a JPEG, you decode it to an immediate representation where resizing and other image manipulation is meaningful and then re-encode it. The encode-decode sequence is called "conversion" colloquially – TFuto Oct 02 '14 at 09:56
  • @TFuto Okay, let me rephrase my original comment without using the word conversion in reply to your comment: "This is an image manipulation question as cameras do not support on-the-fly resizing." Sure they do. Most let you select from a number of resolutions before shooting. And some even let you do it after the fact. – Michael C Oct 02 '14 at 23:52
  • @TFuto Choosing the resolution in camera means that the sensor output is read at full resolution and then the image is resized when it is encoded to JPEG. So YES, it really is on-the-fly resizing. Since, as you say, "...it can be resized, contrast-enhanced, whatever - it is part of the encoding pipeline). – Michael C Oct 02 '14 at 23:54
  • @MichaelClark: they support on-the-fly image sizing, not re-sizing. Anyway, I think this has been discussed too much ;-). – TFuto Oct 03 '14 at 14:20

2 Answers2

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You don't. The camera can save files in three resolutions:

  • 4,928 x 3,264 [L]
  • 3,696 x 2,448 [M]
  • 2,464 x 1,632 [S]

After taking a photo, you can use the "Retouch" menu's options to help you, though. The "Resize" option will let you resize an image down to 320 x 216. (Consult page 184 of the manual for specific steps.) To be honest, I would not use this feature and would prefer to resize an image after I've got it on my computer and can better work with it.

Dan Wolfgang
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There are a number of applications that can resize your image. In most of those you can set the size of the longest direction (vertical or horizontal) to 500 and have the program calculate the size of the other direction. One free such program is paint.net (Windows only).

JerryKur
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