My F4s has battery connection problems. Sometimes I insert the 6 batteries in the MB21 and cannot get the battery indicator lights to come on. I have rubbed all of the contacts with an eraser several times and got it to work only twice. Yesterday the indicator lights came on but the camera did not. I removed the lens and reinstalled it and the camera worked. That happened several times during the day. This morning the camera is dead and the indicator lights will not come on. The batteries are good.
So, my question is this..... Does the F4s have any history of problems with keeping the battery contacts functioning? The contacts are clean and juice flows through the horizontal insert holder but is not making good contact somewhere in the drive. Any help is certainly welcome at this end...... Perry
Didn't see your post until today. Anyway, has it begun working properly, or is it still acting strangely? About 3 weeks ago, I was cleaning the battery contacts at the base of the body portion of the grip. Used a fiberglass brush. Think a fiber got caught inside one of the spring loaded contacts, preventing flow of juice. After fiddling with it for a while, it did finally come back to life.
Might be worth checking to see if an eraser string didn't get caught in there. If nothing's found, and the camera is still giving you fits, it might be better to just get another body. I know that Glazer's Camera in Seattle, WA has a regular F4 that's in good cosmetic condition and has a good working meter, etc. They may let it go for cheap, since the DP-20's eyepiece condenser lens is out of alignment. Half of the viewfinder is sharp, the other half is blurry and looks stretched. But, if your DP-20 is fine, swap it over, and start using the replacement body.
Thanks, but I have it working again. There was something blocking the flow of juice and I never found out what it was. After about the tenth cleaning it suddenly had good contact. So far so good. Perry
Ah, sounds like my situation, then... Something must've made its way into the spring-loaded contacts, then finally worked its way free.
Oh, btw, if you're still running alkalines, try a set of the Energizer Ultimate Lithiums... Been running those in my F4's since 2005. Battery life seems better, and, with all, but one, I've had good AF speed even with the MB-20 pack.
Yes, I have tried those batteries. Have not shot the camera much yet to see how they hold up though. I guess some junk got into the contact, but I could never see it. This is the first F4 I ever owned and I bought it because it is in almost new condition. If nothing else, it fits right in with my collection of all things Nikon. Perry