Photos
Our photo paper is wound on rolls of fixed widths. You can select this width during the ordering process, which will then be the width of your photo. The width corresponds to the following dimensions:
• 9 cm format = 8,9 cm
• 10 cm format = 10,2 cm
• 11 cm format = 11,4 cm
• 13 cm format = 12,7 cm
• 20 cm format = 20,3 cm
Depending on the aspect ratio of your image, the length can vary and will therefore be cut differently. The maximum length of an image is reached at an aspect ratio of 3:2. ifolor supports the most common formats such as 1:1, 4:3, 3:2 and 16:9
Example: If you select a width of 10 cm, the effective size of the developed photo will be between 10.2 cm x 10.2 cm (minimum) and 10.2 cm x 15.3 cm (maximum).
Aspect ratios:
1:1 = 10,2 cm x 10,2 cm
4:3 = 10,2 cm x 13,6 cm
3:2 = 10,2 cm x 15,3 cm
16:9 = 10,2 cm x 15,3 cm (white bar at top and bottom)
The traditional 3:2 format is the maximum aspect ratio and offers the “most” image area. If you send us photos with different aspect ratios to be developed, some photos will therefore be smaller or larger than others.
1. Determine the aspect ratio In the file properties of your photo, you will find the pixel ratio. The aspect ratio is obtained by dividing the larger by the smaller pixel number.
Example: 3264x2448 pixels
You calculate: 3264/2448 = 1.33 = 4/3
This means your photo has an aspect ratio of 4:3.
2. Calculate the image size Using the known aspect ratio and the desired format for your prints, you can now calculate the size of your developed photo.
For example, if you choose the 10 cm format, the shorter side of your photo will be 10.2 cm. The other side is then determined by the aspect ratio (4:3 in the example).
You calculate: 10.2 cm * 4/3 = 13.6 cm
Your photo with an aspect ratio of 4:3 will therefore be 10.2 cm x 13.6 cm.
Using the same method, you can determine whether the length or width of your photo is too long or too short. If the maximum length is exceeded, the excess image areas will be cut off. If your image does not fill the selected format completely, for example because it is too narrow, white borders will be visible on the prints.
Special features:
Panoramic photo – aspect ratio of 16:9; developed with white edges. Order your panoramic photo in a slightly larger format if necessary.
Square image – aspect ratio of 1:1; the number of pixels is identical for both sides.
The format is given rounded. In the following table you will find the exact dimensions of the developed photo paper.
| Format | Minimum size |
Maximum size |
|---|---|---|
| 9 cm | 8,9 x 8,9 cm | 8,9 x 13,4 cm |
| 10 cm | 10,2 x 10,2 cm | 10,2 x 15,3 cm |
| 11 cm | 11,4 x 11,4 cm | 11,4 x 17,1 cm |
| 13 cm | 12,7 x 12,7 cm | 12,7 x 19,1 cm |
| 20 cm | 20,3 x 20,3 cm | 20,3 x 30,6 cm |
Digital photos commonly have an aspect ratio of 4:3. The photo size of your ifolor photo prints will therefore be:
| Format (short side) |
Exact size in 4:3 format |
|---|---|
| 9 cm | 8,9 x 11,9 cm |
| 10 cm | 10,2 x 13,6 cm |
| 11 cm | 11,4 x 15,2 cm |
| 13 cm | 12,7 x 16,9 cm |
| 20 cm |
20,3 x 27,1 cm |
On Android devices, you can find the different aspect ratios in the settings of the camera app or as a quick setting directly on the display in recording mode. Here you can usually choose between 4:3, 1:1 and 16:9. Depending on the device, it may even be possible to select different resolutions for a certain aspect ratio.
When taking photos with an iPhone, the available aspect ratios are displayed directly above the Shutter button in the camera app. By swiping to the left or right you can choose between “Photo” (4:3), “Square” (1:1) and “Pano” (panorama function). To take a panoramic photo, press the Shutter button and slowly move the iPhone’s camera from one side of your shot to the other. However, these extra-wide photos cannot be developed without image loss. Instead, you can use a photo editing program to split the panoramic photo into several photos and have them developed individually. The 16:9 ratio is only available for video in iOS.
Analogue cameras have an aspect ratio of 2:3. This is determined by the film rolls used, which come in 35mm format and can only show this aspect ratio. For this reason, it is not possible to change the aspect ratio in analogue photography.
Tip: For optimal print quality (300 dpi), your digital photo should have the following resolution (in pixels) or sensor resolution (in MP) in a 2:3 ratio:
Format 9 cm 1050x1600 pixels or 2.0 MP
Format 10 cm 1200x1800 pixels or 2.2 MP
Format 11 cm 1350 x 2025 pixels or 2.8 MP
Format 13 cm 1500 x 2250 Pixel or 3.4 MP
Format 20 cm 2400 x 3600 pixels or 10 MP