Usually I just see English, French, Spanish and maybe a few more. Anyone see more than 20 in a manual?
I dug up a Quick Guide from a recent Canon lens purchase. It has the following:
[ol]
[li]English[/li][li]French[/li][li]German[/li][li]Spanish[/li][li]Italian[/li][li]Netherlands[/li][li]Sweden[/li][li]Danish[/li][li]Finnish[/li][li]Russian[/li][li]Chinese[/li][li]Taiwan[/li][li]Korean[/li][li]Japanese[/li][/ol]
These are different?
Probably Mandarin and Cantonese, but they were labeled CHI and FOR (Formosa?).
If there are different sets of instructions for “China” and for “Taiwan / Formosa” I would guess they would both be in Mandarin (Cantonese would be more for Hong Kong), but with one set of instructions in Simplified Chinese characters (for Mainland China) and one in Traditional Chinese characters (for Taiwan).