Updated this older thread with some new pics taken with the Nikon D40.
Here are some tips on getting those decent pictures of your fish.
The Camera: My cam is the Nikon D40
My settings for taking pics:
I use low ISO,80-100.If you use over 200 ISO it will be to much noice on the picture.
I also use the Tulip button(Macro mode).
The Auto: Places the camera in control of all basic exposure settings, including aperture and shutter speed. The user has control over zoom, macro mode, and some flash settings.
Shutter Button: Located on the camera's top panel, this button sets focus and exposure when halfway pressed, and fires the shutter when fully pressed,so when you are ready to take a pic then halfway press the button to see if the fish is in focus.If it doesnt show the fish clear then halfway press it till it shows the fish clear and the fully press the button.
Flash:.You never take pics with flash straight at the fish,keep the cam at some angle of the fish either a little above the fish or below the fish so as the flash want hit directly on the fish.
U can also defuse the flash using a tissue paper or masking tape.
Here is an example with and without flash:
With flash(camera at an angle)
When taking pics with flash you can also defuse the flash fex.with tissue paper like i have done here.
Flash not defused
And flash defused with tissue paper.
Now to the Tank!
First to do is to make sure your tank is clean,frontglass especially since it's there we are taking most of the pictures.I will show you here an example of green spots on the glass can really be bad when you finally got that great shot and the green spots destroys the picture
Green spots on the glass.
So make sure your glass is clean.
Next is the lighting,the most importan thing as to get good pictures.If you dont have good light then you can add some lights like an desk lamp or something but make sure it want fall in the tank...we dont want that do we!Here you can clearly see the pics are rather dark even when flashed is used because of low lights in the tank.
Also the best time of the day to take pics is at evenings,turn of all the lights in the room so only the tank light is on.Taking pics at this time can really show some wonderful colors of your fish.
Here is an example.
Here i will show you what might happend taking pics at daytime.You can see everything reflexes at the frontglass of the tank and the pic want show the fish good enough.