Talk:Photo print sizes

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89 × 127 mm -> Called "9cm x 13cm" worldwide. I doubt this is true. That would mean worldwide the people say 90mm and mean 89 mm. TrueColour (talk) 18:20, 10 October 2008 (UTC)[reply]

- That is correct. The sizes are not 100% exact. It's just easier to round off.76.113.104.88 (talk) 02:14, 6 April 2010 (UTC)[reply]

Why are all the pixel resoltuions off by a few. I thought they were (300dpi)(height in.)x(300dpi)(width in.) ACielecki (talk) 23:57, 10 October 2009 (UTC)[reply]

Presumably it depends on whether you calculate from the inch or metric sizes... although given that the unit is dots per inch, I agree that your formula makes more sense! Jpatokal (talk) 01:37, 12 October 2009 (UTC)[reply]

Ritzpix.com states 4.5" x 6" as being "the new 6D". How does this fit in with the information given in this article? —Preceding unsigned comment added by Bjlovejoy (talk • contribs) 15:42, 3 August 2010 (UTC)[reply]

S8R "twice the size of a 6R print"[edit]

The note for S8R says "Closest approximation to A4 (210×297mm), twice the size of a 6R print. Called "20 × 30 cm" worldwide." To me, it looks as if it is twice the size of a 4R prints, but I'd rather somebody more knowledgeable than me made the correction. MatthewIreland (talk) 14:21, 13 January 2014 (UTC)[reply]

Also, I think this needs to be changed for 4:3 photos. In the first column it reads "4D". But, according to the linked source 4.5" x 6" is "the new 6D" Andrewjmarino (talk) 06:48, 14 January 2015 (UTC)[reply]

DIN 4506[edit]

Old (i.e. pre-1988) editions of the German standard DIN 4506-1 listed some additional sizes. They may also have been part of ISO 1008 once. — Christoph Päper 13:08, 21 June 2020 (UTC)[reply]

Old DIN 4506-1 photographic papers
Millimeters	Inches	equivalent paper size
74 × 105	2+11⁄12 × 4+1⁄8	A7
89 × 89	3+1⁄2 × 3+1⁄2
89 × 140	3+1⁄2 × 5+1⁄2
165 × 216	6+1⁄2 × 8+1⁄2	halved Foolscap Folio
279 × 356	11 × 14	11R, EDP

US and Japanese standards[edit]

Are there any formal standards, e.g. issued by ANSI or JIS, that could be referenced for the alphanumeric codes shown in the table? Although ISO 1008 specifies several of the well-known formats, it does not introduce codes for them. — Christoph Päper 13:08, 21 June 2020 (UTC)[reply]