Hello everybody.
I just bought a Sony DSC-H50B and
have allready some problems, I think, with this camera.

When I`m in the Aperture mode I can select only 1 value of the F, after that I can modify 1 ISO value. But now ISO have 200 value and I only can choose between ISO200 and ISO400. How can I modifying to 100 and 80?

I want to know if is something locked, because I can`t change more values, for ISO, S, F and EV. For example I am in Manual mode and I want to change ISO80 to ISO400 and the only value that is show it to me is ISO100, after I choose this value, I can change to ISO200 and so on...
For EV I have to choose between 0 and -0.3.
For F, if I am on the 4,5 i can`t choose directly 2,7 and vice versa.
There is a problem or that is the way of Sony DSC-H50B?

Some other thing it will be the focus: in P, S, A, M I can`t change the focus to Flexible spot AF, Semi manual focus and the Manual focus. I can only choose between Multi AF and Center AF even in Manual mode.
I have read the manual all over again and nothing. I can`t select Flexible spot AF, Semi manual focus and the Manual focus.

Can you help me to solution this problems?

Thank you very much!