One of the most frustrating moments in photography is sending a carefully composed image to the lab, only to realize the standard frame size you bought doesn’t match your camera’s sensor. If the ratios don’t match, the lab software will automatically “bleed” your image over the edges, often cutting off a subject’s hair or feet in the process.
Use this tool to determine exactly which print sizes fit your specific camera natively, and which ones will force you to make a creative crop decision before you export.
Why does this happen?
Most frames sold in big-box stores are based on the 4:5 ratio (8×10, 16×20). However, most modern digital cameras shoot in 3:2. Because the 3:2 image is physically longer and narrower than the frame, you have to “sacrifice” a significant portion of your image to make it fit.
If you hate cropping, the solution is to look for “Native Ratio” frames — like 4×6, 8×12, or 12×18 — which preserve your entire composition exactly as you saw it through the viewfinder.
Common photography output ratios
If you are trying to hit a specific output format, here are the most common ratios you will encounter in a standard photo and video workflow:
9:16 (Vertical Video): TikTok, Instagram Reels, and YouTube Shorts (e.g., 1080 x 1920 pixels).
1:1 (Square): Standard Instagram grid posts.
4:5 (Vertical): The maximum vertical real estate allowed on Instagram feeds (e.g., 1080 x 1350 pixels).
4:3 (Native Photo & Print): The native sensor ratio for Micro Four Thirds, medium format, and most smartphones. It translates perfectly to 6×8, 9×12, 12×16, and 18×24 prints without cropping.
3:2 (Native Photo & Print): The standard sensor ratio for full-frame and APS-C cameras. It prints exactly to 4×6, 8×12, 12×18, 16×24, and 24×36 canvases.
8:10 / 4:5 (Print): Standard portrait print sizes (8×10, 16×20). Notice this is a significantly squarer ratio than a native 3:2 camera sensor, which means you will lose some of your image on the long edges.
5:7 (Print): Another common print and framing size.
16:9 (Widescreen): Standard 4K/1080p video, YouTube thumbnails, and modern display screens.
