Photographic Series
2R
Belonging to the ISO 216 series, the 2R paper size is a unique and versatile format. This standard, recognized globally, ensures consistency in dimensions across different countries and industries. The 2R paper size measures precisely 60 x 89 millimeters or approximately 2.36 x 3.50 inches.
Interestingly, the ISO series was developed based on a simple aspect ratio of square root two (√2). This ingenious design allows for seamless scaling between sizes without distortion or loss of content. However, it's worth noting that the 2R paper size deviates slightly from this aspect ratio to cater to specific use cases.
2R paper dimensions
Specs
| Format | in | mm | cm | pt |
|---|---|---|---|---|
| 2A0 | 46.81 x 66.22 | 1189 x 1682 | 119 x 168 | 3370 x 4768 |
| A12 | 0.51 x 0.71 | 13 x 18 | 1 x 2 | 37 x 51 |
| 4A0 | 66.22 x 93.62 | 1682 x 2378 | 168 x 238 | 4768 x 6741 |
| A11 | 0.71 x 1.02 | 18 x 26 | 2 x 3 | 51 x 74 |
| A10 | 1.02 x 1.46 | 26 x 37 | 3 x 4 | 74 x 105 |
| A3+ | 12.95 x 19.02 | 329 x 483 | 33 x 48 | 933 x 1369 |
| A1+ | 23.98 x 35.98 | 609 x 914 | 61 x 91 | 1726 x 2591 |
| A0+ | 35.98 x 50.87 | 914 x 1292 | 91 x 129 | 2591 x 3662 |
| A6 | 4.13 x 5.83 | 105 x 148 | 11 x 15 | 298 x 420 |
| A5 | 5.83 x 8.27 | 148 x 210 | 15 x 21 | 420 x 595 |
| A4 | 8.27 x 11.69 | 210 x 297 | 21 x 30 | 595 x 842 |
| A3 | 11.69 x 16.54 | 297 x 420 | 30 x 42 | 842 x 1191 |
| A9 | 1.46 x 2.05 | 37 x 52 | 4 x 5 | 105 x 147 |
| A2 | 16.54 x 23.39 | 420 x 594 | 42 x 59 | 1191 x 1684 |
| A8 | 2.05 x 2.91 | 52 x 74 | 5 x 7 | 147 x 210 |
| A1 | 23.39 x 33.11 | 594 x 841 | 59 x 84 | 1684 x 2384 |
| A7 | 2.91 x 4.13 | 74 x 105 | 7 x 11 | 210 x 298 |
| A0 | 33.11 x 46.81 | 841 x 1189 | 84 x 119 | 2384 x 3370 |
The compact dimensions of the 2R make it an ideal choice for photo prints and small-scale documents where portability is key. It's commonly used in photo albums and picture frames due to its convenient size that perfectly showcases individual images.
Despite its smaller stature compared to other formats in the ISO series like A4 or A3, the utility of the 2R paper size should not be underestimated. Its adaptability makes it a valuable asset in various professional settings such as photography studios, print shops, and even marketing agencies where tangible visuals can enhance consumer engagement.
While it may not be part of any ANSI series - an American standard often used interchangeably with ISO - understanding the unique characteristics of this particular paper size can help optimize its usage effectively across different applications.
Other Formats in the Photographic Series
Interesting facts about 2R
1. The Origin of 2R Paper
2R paper is part of the ISO 216 standard series, which was first introduced in Europe in the 19th century. It is derived from the A series and has a unique aspect ratio.
2. Size and Dimensions
The dimensions of 2R paper are approximately 5.8 inches by 8.3 inches or 148 mm by 210 mm. It falls between the A6 and A5 sizes in terms of area.
3. Common Usage
2R paper is commonly used for photo printing, particularly for small-sized photographs that are often found in albums or frames.
4. Aspect Ratio
The aspect ratio of 2R paper is approximately 1:1.44, which means it is slightly more elongated compared to standard A-series papers.
5. International Recognition
The ISO standard ensures that papers like 2R can be recognized internationally, allowing for seamless compatibility across different printing devices and countries.
6. Historical Significance
Paper sizes have a long history dating back to ancient times when they were determined by practical considerations such as folding techniques and material availability.
7. Global Adoption
The ISO paper size system, including the various series like A, B, C, D, E, F, RA & SRA (raw formats), has been widely adopted worldwide to ensure consistency in printing and document handling.
8. Standardization Benefits
The standardized sizes make it easier for printers to optimize their production processes while also reducing waste since they can efficiently cut larger sheets into smaller sizes.
9. Paper Series Continuity
The ISO 216 standard series ensures that each size can be derived from the previous one by halving the longer side, maintaining the same aspect ratio throughout.
10. Evolution of Paper Sizes
Paper sizes have evolved over time to accommodate various needs, such as larger formats for architectural drawings or smaller ones for portable documents like passports and ID cards.
