Just recieived a used Nikon N80 and it gives the message of open door.Frame counter and film indicator flashes when door is shut and no film is in in camera?

Light meter only works with the back door shut and the film counter is at frame 1 or more !!, Also if the camera is set at M90 or bulb (B) mode, Meter will not work there ether,

There is no problem with the trigger voltage, which I assume is your primary concern. You may not get all of the features you would with a Nikon flash, but you should be able to use it with the D60 just as you use it with the N80.

There is no problem with the trigger voltage, which I assume is your primary concern. You may not get all of the features you would with a Nikon flash, but you should be able to use it with the D3100 just as you use it with the N80.

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According to the manual, the only time the frame counter blinks, is when the back is open or partially open when attempting to rewind film. Push on the back to be sure it's properly snapped closed to see if that solves the issue.

From the N80 manual: "Infrared films cannot be used since an infrared sensor is used for the detection of the film frame position."

If you need a manual, you can get one at http://butkus.org/chinon/nikon.htm

"End" can be a message for "film over" or for a film jam in the cam. Did you check for this already?

Considering the age of the camera, you probably have a broken indicator gear in the top of the camera. The chances of getting it replaced aren't good. If it still works otherwise, I wouldn't worry about it. Just use 24 exposure film.

I had the same problem, what I did was set ISO to manual,and still got the Err,but I took a shot and the film advanced and it seems to be ok now.

Having film in the camera makes no difference for the frame counter to work on this model. The counter is activated by a small tab that protrudes from the top edge of the film door near the hinge.

Locate the area on the camera where that tab meets in the channel along the top of the film compartment. There is a small opening for the lever that engages the drive gear for the counter. The opening may have debris (foam) or the tab may be broken. If neither of these is the case, the film door may be bent slightly and is not pushing the lever in far enough.

It is important for the counter to work on the FG since the metering is not active until the counter reaches '1'. (switch) It blinks 60 &125 in the display otherwise