Some cameras let you set an aspect ratio for shooting photos. Many of the more basic cameras come with a default aspect ratio of 4:3. Many of the more advanced cameras come with a standard aspect ratio of 3:2, which, not coincidentally, is the same aspect ratio as 35mm film.
The Nikon D3400 has a sensor that generates images that are up to 6000×4000 pixels, which is an aspect ratio of 3:2.
But what if you want to change that? What if you want to shoot still images that are 16:9, for instance? That is the aspect ratio we’re accustomed to for HD video.
Well, there’s a good and not so good news.
First, the not so good. There’s no way to adjust the shooting aspect ratio in the D3400. You can change the size, which applies to the pixel measurements, but you can’t actually change the aspect ratio of the images as they’re shot. Regardless of which size setting you use, still images are always shot in the D3400 at 3:2 aspect ratio (video is always 16:9).
What you can do, however, is crop the images after the fact in the camera. What you need to do is go to the Retouch Menu and then use the Trim function.
There you’ll find options to crop the aspect ratio to 4:3, 5:4, 1:1, and 16:9. You access each of these preset templates rotating the options dial at the top right of the back of the camera.
3:2 Aspect Ratio
4:3 Aspect Ratio
5:4 Aspect Ratio
1:1 Aspect Ratio
16:9 Aspect Ratio
You can control the position and size of the crop.
To move the crop frame, use the the direction buttons around the OK button on the back of the camera.
To resize the crop frame, use the Zoom In and Zoom Out buttons. They’re both on the back left of the camera–the magnifying glass symbols with the plus and minus signs. As you resize the crop frame you’ll notice the pixel dimensions at the top right adjust. You’ll also notice that the resizing is a fairly blunt instrument because it adjusts in steps rather than smoothly.
There are limitations. For one, it only applies to JPG files. If you’re shooting with the RAW NEF files, you can apply the trim and it will save a new JPG file alongside the original NEF. The original NEF will remain untouched.
For another, you can only work on a single image at once, so if you’re hoping to do it for a sequence you’ll find it exceedingly tedious.
So it’s not a true replacement for the option to set a shooting aspect ratio, and it doesn’t work well for multiple images. For more fine-tuned control or to apply the crop to multiple images at once you’ll be better off doing it in post with something like Lightroom. But it does come in handy if you want to share a photo with a different aspect ratio directly from the camera.
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Last update on 2017-12-10 at 21:29 / Affiliate links / Images from Amazon Product Advertising API