If you hold one in your hands for a little while you will find that it should settle down and rest on your hand after a short time, leaving you free to take a picture with the other hand thats how I do it but my camara is small enough and easy to use that i only need one hand to do it, it took a little bit of practise though
I have just sexed my babies and finally have an even split of boys and girls woohoo!
4 of each in one litter and 7 of each in the other. I have 2 each of the satins so am really pleased
My little dove is a boy tho