My camera sometimes won't turn on. I'll be using it and it just stops working and the lense gets stuck out. When I try and turn it back on the blue light will flash but it won't come on. Eventually it will work again. The camera has never been dropped or exposed to anything.
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Re: My camera sometimes won't turn on. I'll be using
Your fix could be as simple as cleaning the camera's battery contacts,
or it could be something more serious and expensive. First try
removing the batteries and cleaning the camera contacts with a small
metal brush, steel wool, or fine sandpaper. If that doesn't fix the
problem, check the Kodak
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Lens covers are delicate things. A bit of dust or dirt inside and the the springs can't do their job. When cleaning doesn't work, to repair this I remove the lens cover and shorten the springs by cutting off a bit and then reattaching them. A small bit of mollyd to lubricate helps too. never use oil or silicone.
Your batteries are too low.
When you switch on the camera, the lense go in. Then lense comes out fully. Then, if the batteries are low, lense goes in and camera turns off.
But if the batteries are too low, camera turns off before the lense retracts or even before the lense comes out fully.
Sigma makes lenses for a variety of cameras. If the lens has Nikon mount then it will fit onto the D5000. However, it's a manual focus lens so naturally you won't get autofocus. The lens also lacks the electronics to communicate with the camera, so you will get no help from the camera's exposure meter and you'll have to shoot in Manual exposure mode.
If the gears are stripped, it will require an experienced tech to repair.
That being said, there should be a small switch near the lens mount to switch between auto and manual focus mode's, be sure that that switch is pointing to A. When set to M, the little screw recesses into the mount so it doesn't try to engage, when set to A, it'll extend very slightly.
Also, Nikon has manufactured two types of AF lenses - with the motor in the body and with the motor in the lens, as with most newer lenses. Your camera should have a small screw on the lens mount that drives the focus motor between the lens and the camera, but I'm not 100% certain on that. Your camera can focus lenses with and without this type of coupling. BUT, if that screw/motor in the body is not functioning, you'll only be able to use lenses which contain the focus motor inside them, or manual focus lenses (you can manually focus AF lenses too).
Check the contacts on the camera and the lense.
This error means there is a communication error with the lense or it thinks that the lense is stopped down. Since its a G lense it cant be stopped down manually its gotta be some sort of communication issue. The electrical contact pins are springy and stick so they don't fully extend sometimes. This will improve with wear as the plastic channel is a bit too small and is holding the pin in the retracted position - repeated use will get the channel to get larger. I fixed mine by working the pins in and out manually until they all reliably sprung into position. Removing the lens a few times and fiddling with the contacts seems to have solved the problem..You can check by moving the lens when it is mounted to see if you can replicate the error.