Instagram is continuously experimenting, and the latest buzz is around a new Instagram post format…
The ultra-thin, cinematic “banner” style posts are sized at 5120×1080, and you would have definitely seen at least one on your homepage.
This super wide, shallow aspect ratio is catching attention in the feed. So, we’ll going to unlock how this new format works, why it matters, and whether you should use it with your brand.
What is the new 5120×1080 Format?
- The new Instagram post format is extremely wide and narrow, often likened to a banner or cinematic strip.
- With dimensions of 5120×1080, the aspect ratio is approximately 4.74:1 (very wide compared to standard 4:5 or 1:1).
- Because the post is so thin vertically, the visible slice of the image on mobile feeds is minimal. Users must tap or scroll to see the full image.
- The effect is dramatic and eye-catching: your audience sees only a tantalising sliver before they decide whether to interact further.
This format challenges conventions but opens many creative doors.
Think wide sceneries, panoramic storytelling, layering, and revealing through movement.
It has also been seen as a passing trend, so it’s important to analyse if these new dimensions will match your brand and its mission.
Pros Of The New Instagram Post Format
- It breaks the scroll monotony
Most Instagram posts are square or vertical rectangles. A slim panoramic image interrupts the visual flow and compels a second look. - It drives curiosity and interaction
Since only part of the image is initially visible, people may tap or zoom to see more, or head over to your profile. - It supports narrative reveals
You can tease a reveal: show a foreground detail first, then gradually reveal context. - It fits with cinematic & storytelling trends
Brands and creators already use cinematic letterboxing; this format leans into that sensibility natively. - It aligns with vertical video & widescreen habits
With more users comfortable consuming horizontal or immersive content, consider it a new play in that direction.
Best Practices for Using the New Instagram Post Format
- Plan with context in mind
Because only part of the image shows initially, be careful: ensure key elements (e.g. faces, logos) aren’t lost at edges. - Use strong foreground anchors
Put a strong visual or text element near the visible slice to draw the eye and lead to the rest. - Leverage contrast & motion
High contrast and implied motion across the image helps guide the eye and add drama. - Test caption prompts to draw viewers in
“Tap to reveal more,” “Swipe to see the full frame,” etc. - Consider aspect safety margins
Ensure critical information stays well within safe bounds, not right at the edges.
So, Should You Utilise the New Instagram Post Format?
The new Instagram post format of 5120×1080 gives creators and brands a fresh canvas to innovate in how they tell stories and draw attention.
While the format is bold and experimental, when used thoughtfully it can drive curiosity, engagement, and brand distinction.
Nonetheless, it’s important to make sure your brand matches this trend. KitKat is a great example of how brand and trends can go hand in hand.
Ultimately, social media marketing is all about trial and error, so worst case, it doesn’t perform as well as you’d hope. But that’s the world of social media marketing.
Will you be using this new Instagram post format with your brand? Let us know on our Instagram or apply to work with us here.
