Greetings,

I have been asked to take a group portrait of my HS class reunion ... and will probably also shoot the three other class reunions that are scheduled to take place at the same time. 

Shooting a group portrait is enormous fun ... as anyone who has seen the French farce, "Le Placard" (2001) can attest.  ... BTW, here in the USA, that film is called "The Closet".  The film starts ... and ends with the taking of a corporate group photo ...

Back to my question about shooting a group photo ...

There will be about 30 people in the shot ... I'm guessing that the field of view will be about 20 feet wide by 10 feet high.  I want the final resolution (in the print) to be sufficient to easily recognize each face. 

How many megapixels do I need to shoot?  ... per person ... and for the whole group, as well. 

Can it be done digital ... or do we need to engage a professional with a view camera? 

What size print (8X10, 16X20, ...)?

BTW, 'the committee" wants a prop in front ... HaHa!! ... But they don't want the expense of a professional photographer, the expense of an oversize print ... one of them hinted that an 8X10 might be too much expense for some of those attending. 

--
Martin