Papa j Loc: Cary NC

I have this camera and recently noticed the shutter gets stuck 3/4 of the way closed nikon does not service this camera any longer. Any suggestions it works great at f 16 and up thanks as always

Joe

Jim Bob

Hold on there partner. Is that a lens or camera you reference in your caption?

Papa j Loc: Cary NC

Sorry partner it's a lens

rehess Loc: South Bend, Indiana, USA

Does "and up" mean f/11, f/8, ... or f/22?

My Pentax Q-7 does contain a leaf shutter in each lens, but that is extremely uncommon; very few lenses contain a shutter any more. I'm guessing that you're looking at the iris, the mechanism which implements aperture.

Papa j Loc: Cary NC

Sorry f11 to f22

RWR Loc: La Mesa, CA

Has it been unused for a long time? You may be able to free it up by operating the diaphragm actuating lever (inside the mount at 3 o’clock) several times. Set the aperture ring at f/22.0, the diaphragm should be stopped all the way down. When you flip the lever up it should open all the way. Release the lever, it should stop down smartly. If that doesn’t do it, any competent camera repair technician should be able to free it up. If the blades are not positioned evenly, though, it may be worn out and you could be out of luck. That would be uncommon, however. Good luck, that’s an excellent pro lens even if it is a push-pull autofocus design.

larryepage Loc: North Texas area

Diaphragm lubricant tends to get gummy over time. As indicated above, cleaning and relubricating is a standard maintenance procedure that can be done by almost any competent camera repair ship. It does involve at least partial disassembly of the lens, but it is most likely that no parts will have to be replaced. I am working with an Olympus Zuiko 50mm f/1.2 lens right now which is exhibiting the same symptoms.

From personal experience years ago, I can tell you that if you don't get the problem corrected, it will almost certainly get progressively worse, possibly to the point of complete seizure...the diaphragm will not move at all. And it is possible that the unnatural and unexpected forces on the diaphragm leaves can eventually cause them to get bent or torn, which usually falls into the category of 'catastrophic failure' for lenses with no parts available.

Nikon's website pointed me to a local repair shop which is authorized by them to do repairs. They completed repair on one camera body for me at a reasonable rate, and I'm sure that they would do the same on lenses. I'm sure that it could point you to a shop near Cary. I see at least two repair shops in Atlanta.

cameraf4 Loc: Delaware

Same problem occurred once with my 35mm f/2 AF-D Nikkor. larryepage is right on target on this one.