I have a grdf430u that the iris sticks shut on. i usually open it up and unstick it, close it up and it works fine. This last time it does not power up at all. Is there a way to "reset" the camcorder? Could it be the lithium battery inside of it is dead?
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Zoom the camcorder as far as it will go and shine a flashlight into the lens assy. Inside the lens assy there is an iris that works pretty much like our eyes (closes when it is too bright and opens up when it is darker). If all you see is black when you are shining the light into the lens, your iris is stuck closed (like having your eyes shut). If your iris appears to be open and functioning properly, then you likely have an issue with your CCD assy. The CCD assy is the what lets your lens talk to your main PCB.
Sometimes by zooming in all the way and shining a light into the lens, the camcorder will "unstick" itself. You will most likely need to have it repaired by an experienced technician.
If you mean no picture during camera mode(that is all black screen), Something must be done to your camera. Iris motor unit fails to open causes the problem of no picture since iris is close. Solution, clean iris curtain, needs skill. I suggest have it checked by qualified person. Hope it helps, Good luck
sounds like the Iris control motor is not opening the Iris.....it might be stuck closed or no power to the Iris control motor. when you switch to camera mode, look into the lens assembly, you can actually see if the Iris is opening...if you don't see any movement, then your problem is the Iris, if you do see the iris opening, then your problem might be more severe such as the camera module itself....what ever the case, your camera needs to be opened up for service.
Hit the iris button on the side of the camera, then use the dial to dial the iris into an open position and let more light in. Know that the higher the number, the less light coming in, so 16 is just below closed iris, 2.8 is just before completely open iris. The iris is like the pupil of your eye. You should always be in manual iris to control the iris with the iris dial, keeping the video between 4.0 and 6 usually gives you the best exposure (not too hot or too low light.)
You also may have a neutral density filter on. You should only apply this switch if there is too much sunlight. Use nd 1/8th for moderate sunlight, nd 1/64th for bright sunlight. Then adjust the iris with the dial again to get the best picture exposure.
The problem you are having is called a "stuck iris" Inside the lens are two thin plastic sheets that slide over one another that limit the amount of light that comes into the lens. In some Sony camcorders, the motor or "actuator" that drives the iris, or moves the two sheets which are the iris opened and closed. The actuators sometimes leak oil onto the plastic sheets causing them to stick, so the light coming into the lens is stuck at one level. Some technicians will recommend lens replacement (expensive) but many times the iris assembly can be removed from the lens and cleaned. Try to find a service shop that will clean the iris rather than replacing the lens.
I would bet that the camera iris is stuck closed. On some of the Sony cameras, the iris actuator (a small motor-like device) leaks oil onto the two slippery sheets that slide acrossed one another and act as the iris. A qualified tech can pull the iris assy out and clean it. I have repaired many Sony cameras this way. Sony usually recommends replacing the lens assy which is expensive
This sounds like the iris is stuck almost closed. You can try gently tapping the side to attempt to release the iris. If that fils to resolve the problem, the unit should be brought to a servicer to rebuild the optical block.
i think the iris of your camera is not opening....it need to clean the iris by the lighter fluid cause of some grease that sticking in the iris...don't attempt to do this is you are not a technician...
there are two possible problem of your camera...one check the iris of the camera if it is opening,you will see it went you look inside the lens when you turn on camera mode....and if you see that the iris is opening...the second may be the ccd image sensor......if that is the problem you have no choice but to go the sony service for replacing the ccd image sensor...