Hi guys i need some help/ advice re the above camera. More specifically the HM401 film backs. When i bought my camera, i slowly built up the film backs. I now have 4.
The first one fb1 , which i never noticed at first ( first time using film) reset back to No1 after about 6 shots or so. I carried on with it and eventually got 2 more - will be known as fb2 / fb3 for reference.
Both worked fine, no resets etc. Last year i managed to get a boxed version - fb4 to replace fb1, which was virtually new. This weekend just gone i was out using the camera and the new fb4. However after 6 shots it reset back to one. The next day i was shooting again. The camera was in MUP and using the self timer as the cable release was in the bottom of my pack. The camera locked up and refused to work until it was switched off/on a few times - then error 04 came up on the lcd and fb2 reset back to 1 again.
This is the first lock up i have had since getting the 10k batteries for it. The battery was fully charged, well apart from taking maybe 20 shots before the lock up.
I have just cleaned all the contacts on the camera/ backs and will put a roll through each of the fb2/4 backs the weekend to see if it helps?
While not dangerous etc just annoying. Does anyone know the cause? Is their a fix other than replacing the film backs ( digital back in the future pipeline).