How do I resize images captured by EOS REBEL SL1 / EOS 100D with the camera? (How to resize an image to make the pixel count lower.)
Solution
With your camera, you can resize an image to make the pixel count lower and save it as a new image. Resizing an image is possible only with JPEG L / M / S1 / S2 images.
IMPORTANT
JPEG S3 and RAW images cannot be resized.
NOTE
Icons used on this page:
<
>: Playback tab 1 / <
>: Setting button / <
>: Cross key / <
>: Index/Reduce button
>: Playback tab 1 / <>: Setting button / <>: Cross key / <>: Index/Reduce button1. Set the camera's power switch to <ON>.
2. Press the <MENU> button to display the menu screen.
3. Press the <
> keys to select the [ ] tab. Press <
>, select [Resize], then press <>.
> keys to select the [ ] tab. Press <
>, select [Resize], then press <>. An image will be displayed.
4. Select an image.
- Press <> to select the image you want to resize.
- By pressing the <> button, you can switch to the index display and select an image.
5. Press <> to display the image sizes. Press the <> keys to select the desired image size, then press <>.
> to display the image sizes. Press the <> keys to select the desired image size, then press <>.
NOTE
The target sizes ( M / S1 / S2 / S3 ) in this window will be smaller than the original size. For example, if the original image size is S1, you can select S2 or S3.
6. Select [OK] to save the image, and then press <>.
>.
7. Check the destination folder and image file number, then select [OK].
To resize another image, press the <MENU> button to return to the image selection screen, and then repeat steps 4 to 7.
8. To exit and return to the menu, press the <MENU> button.
The [4.5M 2592x1728] image size displayed in step 5 has a 3:2 aspect ratio. The image size according to aspect ratios is shown in the table below. For asterisked image-recording quality, the pixel count does not exactly match the aspect ratio. The image will be slightly cropped.
| Quality | Aspect Ratio and Pixel Count | |||
| 3:2 | 4:3 | 16:9 | 1:1 | |
 | 3456x2304 (8.0 megapixels) | 3072x2304 (7.0 megapixels) | 3456x1944 (6.7 megapixels) | 2304x2304 (5.3 megapixels) |
 | 2592x1728 (4.5 megapixels) | 2304x1728 (4.0 megapixels) | 2592x1456* (3.8 megapixels) | 1728x1728 (3.0 megapixels) |
 | 1920x1280 (2.5 megapixels) | 1696x1280* (2.2 megapixels) | 1920x1080 (2.1 megapixels) | 1280x1280 (1.6 megapixels) |
 | 720x480 (350,000 pixels) | 640x480 (310,000 pixels) | 720x400* (290,000 pixels) | 480x480 (230,000 pixels) |