Wrecked ship - focus lens

HI all,

I can't seem to focus the lens steady in one spot. Does someone know how to do this?

Thanks so much!
Carmelaaa

It's probably only about 5 seconds if you have it in the right spot.
The right spot is when you get the most smoke. i actually found it easier to work out where this was and then look at the magnifying glass up against the planks of the ship. Once I had worked out where the magnifying glass should be i focused on it, not the smoke/hay and concentrated on keeping it in the same spot.

I've just completed my third time through and I noticed it took less time the second and practically caught fire immediately the third time...anyone else experiencing that??

I can't get to fix the lens. When i click in the button, lens down but up alone. And down to up endless. With this, i can't get the focus.

Is it normal?