A painting of the late Baroness Thatcher hangs over a meeting room in Number 10 Downing Street, patterned carpet and locked book cases add to a memory of a place I have been before.
 

 
I once had a paltry 8 seconds or… 3 frames to photograph former Prime-minister, Gordon Brown in this very room. Two years later; we have a Conservative government and I am back, this time waiting for our current PM, David Cameron. Usually, in my world knowledge is power but this time I feared the same fate and enough pressure to make diamonds!
 
As the PM was being interviewed by Bloomberg, I rolled around on the floor looking for angles as he spoke. After a few minutes his press officer asked me to stop, so I picked myself up and went back to the light I had set up for a portrait at the end of the interview.
 
When the interview finished; Cameron stood, buttoned his jacket and made for the exit. I dashed to his press officer and thankfully she ushered him back in for what turned out to be a leisurely 12 second photo-shoot. After I directed him slightly we talked (briefly) when I mentioned that I’d just driven back into town from another job in Whitney, Oxfordshire, which is his constituency.
 

 
Once he had made his farewells and left the room, it was my first real chance to see what I had got. I looked at the back of my camera… It was sharp… It was well exposed… It was actually pretty good.
 
So, what can we gleam from the extra 4 seconds I was allowed with Mr Cameron… not a great deal, but he was certainly more comfortable being photographed than his predecessor.
 
All Images are available for editorial use via Bloomberg.