Printing iris art: resolution, formats and materials
An iris artwork only reveals its full effect once printed. This guide explains what resolution IRISORA delivers, which formats are available and what to consider for size and material.
The files you receive
Every finished artwork can be downloaded free of charge as a preview file with a 900 pixel edge length. That file is intended for screens, social media and small prints.
For printing there is the 4K print file. It is computed from the high-resolution master and tagged at 300 dpi, so print shops and photo labs can process it directly.
Resolution and sensible print sizes
A simple rule: divide the pixel edge length by 300 to get the size in inches at full print resolution. At 4096 pixels that is roughly 13.6 inches.
Larger formats still work because wall art is viewed from a greater distance. On canvas or acrylic, 24 to 36 inches are common without the iris structure visibly suffering.
Square or landscape
IRISORA creates artworks in 1:1 and 3:2. The square emphasises the round iris and suits gallery walls. The 3:2 landscape gives the motif more surrounding space and works well for images with several people.
You can additionally create the same style in the other format. That counts as a separate artwork.
Material and colour impression
- • Matte photo paper: calm impression, few reflections, good for bright rooms
- • Glossy photo paper: stronger colours, higher contrast, more reflections
- • Canvas: soft texture, fine iris fibres appear slightly more restrained
- • Acrylic or aluminium: strong sense of depth, especially with dark motifs
What really limits print quality
Output size is not the only factor. The source photo remains decisive: if the iris is blurred, too dark or covered by reflections, printing cannot compensate for it. A clean eye photo is the most important preparation.
Frequently asked questions
- What resolution does the print file have?
- The 4K print file is generated from the high-resolution master and tagged at 300 dpi, which comfortably covers wall art well beyond A3.
- Is the free preview file enough for printing?
- For small formats up to about postcard size, yes. For posters, canvas or acrylic use the 4K print file.
- Can I crop the image myself?
- Yes, but keep the iris round and fully visible – otherwise the characteristic effect is lost.