Promaster 7500 D Digital Flash usage with Nikon D70
I have a promaster 7500DX flash and I'm trying to use it with my Nikon D70. I've used it before, but can't remember which settings on the camera work with the flash. I know it sounds crazy, but which ones are they? I know it's a few...
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The flash model for Canon is 7308 it might be the correct flash but programed for the wrong brand/manufacture. The way I see this flash is that Promaster produces this 7400edf to work on all the major camera brands but it's programed for a specific camera. The flash firmware updatability is done by a dealer. Another thing I ran into with one of my students cameras (a Canon) was you needed to go into the menu to select external flash over internal. I believe Canon is doing this due to the video capabilities of the camera.
No, the Vivitar 283 does not have TTL (Through The Lens metering capability) and the voltage in the flash may be much higher than that in the camera. Some of the old 283 flashes had a very high operating current that, when the flash is left one and removed from the camera can damage the camera operating circuts. Find a Nikon SB 400, 600, 800 or 900 speedlite, or a Promaster 7200 or 7500 for a great less expensive flash for this camera.
You should try it only if you have the capable skill. Too much heat on the contact for too long may damage the plastic around them making the connection or mounting of the flash worse. If you have the ability you could do it, but make double sure that you are connecting the correct wire to the proper contact, since each contact has a specific job. If you are not sure send it back to promaster for best results. http://www.promaster.com/support/repairs.asp
Try to put some silicone oil to the thread the disc is turning on. The oil slowly penetrates into the gap and lets the disk rotating. Car dashboard shine sprays often contain silicone oil, check the ingredients. Laszlo