- You can start with 100 photos. 300 or more is better, and more helps, especially for a large print.
- Variety matters as much as the number: different places, light and seasons.
- Photos you mark as must-use are always included.
It's the first question almost everyone asks about a photo mosaic: how many photos do I need? The short answer: 100 to start, 300 or more if you can. The longer answer depends on how big you plan to print, and on how varied your photos are.
What Changes When You Add More Photos
To show the difference, we made the same mosaic twice. Same main photo, same size, same settings. The only change was the set of tile photos: 300 photos for one, 1,000 for the other, both picked at random from the same collection of dog photos.
Both read as the same dog on the same bench. Put them side by side, though, and the 1,000-photo version reproduces the original photo more faithfully. The autumn leaves keep their warm browns, the bench looks like wood, and the shading on the fur is smoother. With 300 photos, the software had to use tiles that were only roughly the right color, so the picture looks grainier.
Up close, the difference is easier to see. Every cell needs a photo whose colors fit it. The more photos there are to choose from, the more often there's one that fits well, and the fewer times any one photo has to repeat.
How Many Photos for Your Print Size
Our files are the same resolution whatever size you print. What changes with a bigger print is how big each tile is on the wall. The bigger the tiles, the more easily you notice repeats and near-misses up close. Here's what we suggest:
| Print size | What we suggest |
|---|---|
| Up to 16×20″ (40×50 cm) | 300 or more works well |
| Around 20×28″ to 24×36″ (50×70 to 60×90 cm) | 500 or more, if you have them |
| 28×40″ (70×100 cm) and A0 | 1,000 or more, if you have them |
| Digital file for screens | 300 or more works well |
These are suggestions, not rules. A varied set of 400 photos can beat a repetitive set of 1,000.
Why Variety Matters as Much as the Number
A thousand photos of your dog on the same brown couch will lose to three hundred taken in different places, seasons and light. Here's why.
The software has to match every color area in your main photo. A face against a blue sky needs:
- Skin tones (warm beiges, pinks, browns)
- Blues, for the sky
- Darks, for hair and shadows
- Lights, for highlights, teeth and eyes
If every photo you send is a warm indoor shot, the face will come out well and the sky won't. There simply aren't enough blue photos to build it from.
The Photos That Have to Be In It
Some photos aren't optional: the grandparent the mosaic is for, the dog who isn't around anymore. You can mark as many photos as you like as must-use, and every one of them will be in your mosaic.
The rest are placed where their colors fit. That's what keeps the big picture clear, and it also means a few unmarked photos may not appear if their colors don't suit any part of the main photo. If a photo matters to you, mark it.
Don't Have 300 Yet?
Most people have more than they think. A few places to look:
- Your phone, year by year. Scroll back a few years; birthdays and trips add up fast.
- Family and friends. Ask them to send theirs. Different phones and different eyes mean more variety.
- Shared albums and social media. Photos you posted, or ones others tagged you in.
- Printed photos. A phone scan of an old print works as a tile.
Near-duplicates don't help much. Ten frames from one burst add to the count, not the variety, so keep the best one.
Tips for a Better Set of Photos
- Mix places. Indoors, outdoors, beach, city, park. Each setting brings its own colors.
- Mix light. Sunny, cloudy, golden hour, flash.
- Include some close-ups. Food, flowers, textures. Their strong, even colors are useful for matching.
- Don't over-curate. A photo you think is off, with a strange color cast, may be exactly the green a patch of leaves needs.
What About the Main Photo?
The main photo matters too. Photos with clear light and dark areas are forgiving. Soft, pale, evenly lit photos are harder: the colors are close together, so the matching has to be more precise, and a varied set of tile photos helps even more.
In our experience, faces are easier than landscapes. Skin sits in a narrow range of colors, so even a modest set of photos tends to have enough warm tones to fill it. For more on choosing the main photo, see How to Make a Photo Mosaic.
FAQ
Can I send more than 1,000 photos?
Yes. There's no upper limit, and the price is the same whether you send 300 or 3,000.
Will every photo I send be in the mosaic?
Every photo you mark as must-use will be. The others are placed where their colors fit, so a few may not appear.
What if I have fewer than 300 photos?
We can start from 100. We don’t lay the main photo over the tiles, so the picture is built only from your photos’ own colors. With fewer photos, the same ones repeat more and the picture looks a little grainier, as in the comparison above. You’ll see a preview before anything is printed and can add photos then, and the tips above usually help people find more. To see how your own photos look first, try them in our free Photomosaic Maker.
Does a bigger print need more photos?
It helps. On a bigger print each tile is larger, so repeats are easier to spot up close. See the table above.
Do duplicate or similar photos count?
They count toward the number, but they add little variety. One good frame is worth more than ten near-copies.
Ready when you are: start with your main photo, then upload your photos after you order. We'll send a preview before anything is printed.
