Thanks all, and I thought they were Ramshorn but wasn't sure at all. Thanks for clarifying.
As for the camera setting, I just set it to Auto w/o flash for the tank shot I think. The knob on top has two auto modes one with flash and one without. If you want no flash just set it to the auto mode that shows the flash inside a circle with a line through it. It won't pop up the flash then.
http://www.kenrockwell.com/nikon/d40/users-guide/index.htm
Here is a good users guide for the D40 also.
It is the next setting under Auto.
As for the camera setting, I just set it to Auto w/o flash for the tank shot I think. The knob on top has two auto modes one with flash and one without. If you want no flash just set it to the auto mode that shows the flash inside a circle with a line through it. It won't pop up the flash then.
http://www.kenrockwell.com/nikon/d40/users-guide/index.htm
Here is a good users guide for the D40 also.
It is the next setting under Auto.