Are you applying to uni for 2015? If so, what course, and have you checked the entry requirements? Many places require 3 A2 grades for entry. 2 AS grades do NOT equal an A2 grade as far as unis look. If you are looking to enter a course with UCAS point entry then you may be fine.
In my experience: AS photography is hell. I did AS English language, business studies, media studies and photography. I found photography killed my passion for a hobby I loved, taught me nothing, and gave me my lowest grade (I got AABC). It's a LOT of work. It was easily the most work out of any of my subjects. Personally I would not recommend the subject, 60 of us took the subject last year, only 15 are doing it this year.