Flash does not open when I slide the "open flash" switch.

Means the internal spring had broken - expensive to repair, just hold the flash up with your finger when you need it

To my knowledge there is no Kodak DX 7500. So you are referring to a DX 5700 or a DX 7590. for both, start charging the battery. Then after you put in the battery, press the on / off button for a second the camera should switch on. But considering the age of the camera, it could be the battery does not work. I wonder if it is worth buying a battery for an almost 10 year old camera. So if it does not work, don't try to buy a battery, it could be more expensive then a brand new camera, delivering better results than the camera you now have.

Hi,Flash comes automatically in A ( Auto ) mode..if you want to use flash manually as Fill in ,you have to switch the other modes as P, S, M ,modes and open the flash with the little sliding key nearby..
Take care..

You've just put the camera into the macro mode, in which the flash is disabled. Slide the switch the other way.

The macro mode is for taking close-up pictures. In this mode the flash will not work. There's a slide switch on the end of the camera, near the USB jack. Slide the switch away from the flower and toward the mountain.

Macro mode is for taking pictures of things very close to the camera.

There is probably a slide switch on the left end of the camera as viewed from the back. Slide it away from the flower and toward the mountain to get it off macro mode. If the switch isn't there, please reply to this post telling us what model Vivitar camera you have.

To pop up the flash slide the switch at the top of the flash to the "Open" position. Press Right on the four-way button (marked with a lightning bolt). Press Up/Down to select the desired flash mode (in this case, FORCED FLASH ON) and press MENU/SET.

Remember to set it back to AUTO when you're done using the flash.

The batteries are usually built in to the film case and get replaced every time you buy a new film.

You will need the proper module. Check with B&H photo for the module compatable with your Olympus camera body.

Set the mode dial to Camera (normal) then by pressing the Up button on the control pad, you may switch between the different flash settings. The settings are:

• Forced flash (lightning bolt)
• Slow synchro (bolt plus SL) - this is forces the flash to strobe out of sync so a dark background can be lit up.
• No flash (no bolt)

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