Yes, it's quite common to agree contractually to publication of such privately commissioned work. Without it wedding photographers would be unable to even publish portfolio sites. 

©A admin

No to all three.

Although the photographer (as author) owns copyright by default so not even the client may copy them without permission, any publication of photos taken for private purposes, such as personal portraits and weddings, is not permitted without the client's permission.

Here is the relevant part of the 1988 Copyright Designs & Patents Act:

 85 Right to privacy of certain photographs and films
(1) A person who for private and domestic purposes commissions the taking of a photograph or the making of a film has, where copyright subsists in the resulting work, the right not to have-
(a) copies of the work issued to the public,
(b) the work exhibited or shown in public, or;
(c) the work broadcast or included in a cable programme service;
   and, except as mentioned in subsection (2), a person who does or authorises the doing of any of those acts infringes that right.
(2) The right is not infringed by an act which by virtue of any of the following provisions would not infringe copyright in the work—
(a) section 31 (incidental inclusion of work in an artistic work, film, broadcast or cable programme);
(b) section 45 (parliamentary and judicial proceedings);
(c) section 46 (Royal Commissions and statutory inquiries);
(d) section 50 (acts done under statutory authority);
(e) section 57 (anonymous or pseudonymous works: acts permitted on assumptions as to expiry of copyright or death of author).

©A admin