Help on a *IST DS - It sets continuously aperture
If so, it sounds like you may have a problem with a stuck button or microswitch. In particular, the on/off lever has a third position, marked with an aperture symbol, that does step down the aperture - I wonder if the switch that this triggers has been stuck down, meaning that all the while your camera is on it is doing this?
One answer might be to try and un-stick the switch, if this really is the problem. I have heard that people have solved similar problems with the control dial by using isopropyl alcohol or the like to clean the contacts - however, please be very careful with this as it would be quite easy to damage the camera! I don't know if it might be possible to take the camera apart and mechanically clean the troublesome component?
I think to exclude a defect on-off-aperture control lever, because when I put it in the "aperture control" position, the problem stopped but it restarted when I have released that lever.
Today I turned on the camera and **"miracle"** the camera not started as usual to have that problem, I have used the menus in order to reset the function to factory settings, but I think that the problem is still there, because I noticed that the display lights up sometimes without any apparent cause.
It seems to me that there will be some defective contact in the camera's supply circuits, is like the power supply is removed and reconnected quickly many times.
Have you tried a fresh set of batteries? It's probably worth buying a set of 4 Duracell Ultra's or similar just to eliminate battery issues.
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3 posts
12 years
Images are well shooted but I cannot see them as normally by pushing the review button, it is possible only inserting the SD card in the PC.
I tried to change lens with several others, to turn on camera without lens, to change batteries (well charged), to update the firmware (now 2.02), to well clean lens and camera contacts but the camera continues to set noisy the aperture, as long as it is on.
I tried to turn camera on keeping shutter release button pressed (it is a reset mode?) but no results.
Some ideas about?
Greetings
Giovanni