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Photographic Series



Belonging to the ISO 216 standard, the 8R paper size is a unique and versatile format. This particular size, measuring 8 inches by 10 inches or precisely 203mm by 254mm, is part of the R series that deviates from the more commonly known A and B series.

The R series, including our subject - the 8R paper size, was specifically designed to cater to photography and printing needs. Its dimensions are ideally suited for photo prints, making it a popular choice among professional photographers and print shops worldwide.

8R paper dimensions


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2A046.81 x 66.221189 x 1682119 x 1683370 x 4768
A120.51 x 0.7113 x 181 x 237 x 51
4A066.22 x 93.621682 x 2378168 x 2384768 x 6741
A110.71 x 1.0218 x 262 x 351 x 74
A101.02 x 1.4626 x 373 x 474 x 105
A3+12.95 x 19.02329 x 48333 x 48933 x 1369
A1+23.98 x 35.98609 x 91461 x 911726 x 2591
A0+35.98 x 50.87914 x 129291 x 1292591 x 3662
A64.13 x 5.83105 x 14811 x 15298 x 420
A55.83 x 8.27148 x 21015 x 21420 x 595
A48.27 x 11.69210 x 29721 x 30595 x 842
A311.69 x 16.54297 x 42030 x 42842 x 1191
A91.46 x 2.0537 x 524 x 5105 x 147
A216.54 x 23.39420 x 59442 x 591191 x 1684
A82.05 x 2.9152 x 745 x 7147 x 210
A123.39 x 33.11594 x 84159 x 841684 x 2384
A72.91 x 4.1374 x 1057 x 11210 x 298
A033.11 x 46.81841 x 118984 x 1192384 x 3370

Interestingly enough, despite its global recognition in photography circles, the R series does not adhere strictly to the aspect ratio found in other ISO standards. Instead of following an aspect ratio of √2:1 like its A and B counterparts, it adopts a more flexible approach that better accommodates photographic sizes.

Moreover, while most paper sizes under ISO standards are widely used across various industries for different purposes such as writing or technical drawings; the usage of R sizes like 8R remains largely confined within photography and printing sectors. This specialization makes it an intriguing outlier within international paper size standards.

Whether you're a professional photographer seeking perfect prints or simply someone with an appreciation for international standards' intricacies; understanding the unique characteristics of this specific paper size -the 8R- can add another layer to your knowledge base.

Other Formats in the Photographic Series

Interesting facts about 8R

1. The Origin of 8R Paper

8R paper is part of the international standard paper size series known as ISO 216. It was first introduced in Germany in the early 20th century and has since become widely adopted around the world.

2. The Dimensions of 8R Paper

The dimensions of 8R paper are 203 mm x 254 mm or approximately 8 inches x 10 inches. It falls under the category of "rectangular" sizes within the ISO A-series, which means it has a different aspect ratio compared to A-series papers.

3. Common Uses for 8R Paper

Due to its convenient size, 8R paper is commonly used for printing photographs, postcards, and other small-sized prints. It provides a good balance between portability and display quality.

4. The "R" in 8R Paper

The letter "R" in the term "8R" stands for "regular." This indicates that it is a standard size within its category and not an oversized or undersized variant.

5. Variations Across Regions

In some regions, such as North America, an alternative name for this size is "A-5," which can cause confusion since A-5 typically refers to a different size (148 mm x 210 mm) in other parts of the world.

6. Compatibility with Envelopes

If you plan to mail items printed on 8R paper, you'll be glad to know that it fits perfectly into C6 envelopes (114 mm x162 mm), making it easy to send personalized postcards or greeting cards.

7. The A-Series Connection

8R paper is part of the A-series system, which includes sizes like A0, A1, A2, and so on. However, unlike the A-series papers that follow a specific ratio (sqrt(2):1), 8R paper has a unique aspect ratio of 1.25:1.

8. Historical Use in Photography

In traditional photography, 8R was commonly used for contact prints from negatives or slides. It allowed photographers to easily view their images without the need for enlargements.

9. Availability in Different Paper Types

8R paper is available in various types such as glossy, matte, and semi-gloss finishes to suit different printing preferences and requirements.

10. Global Recognition

The ISO 216 standard ensures that 8R paper is recognized and accepted worldwide. This allows for seamless compatibility between printers, print shops, and customers across different countries.