I have an Olympus C-2040 Zoom that I bought used about 3 years ago. It's likely around a 2000 model. It gets handled quite roughly; I chose it because I have one just like it at work. Lately the auto focus doesn't work well. Of course I cleaned the lens, and blew out any nooks and crannies with a can of air, just in case the lens wasn't able to move in and out like it should (no idea if that was even applicable, but did it anyway). I have gone through the menus many times, looking for anything that might have gotten changed (my daughter uses the camera too, and may have monkeyed with the menus). I also made sure the "reset" option was on so everything would go back to factory defaults. I even removed the batteries and let it sit for a couple hours. I even changed from rechargeable batteries to a fresh set of regular ones... nothing changed. The macro option, quality options, everything I can think of is set "normal".
I then experimented and took a close up shot of a box with printing on it using manual focus. Without budging, I switched it over to auto focus and took another shot. The difference between the shots is dramatic. The anual focus shot is about as close to perfect as anything I've seen, and the auto focus one looks like someone smeared vaseline on the lens.
Is there some way to do a (for lack of a better word) reboot on this thing so the auto focus can start fresh? Or is it trash can time?
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Most camera's can't focus when the aperture number is above 5,6. Although your tele zoom starts at 4,8, it reaches the 5,6 at about 150 mm. So from there and up it can't auto focus. You still should be able to focus manually, but for wild life or sports pictures, it is useless.
I also own an olympus c765 and was wondering how to use the manual focus option when I came across your post. Actually I have been wondering whether manual focus is of any use in an olympus c765 because the manual does not talk anything about it.
However, I just found out that there is a way of activating/deactivating manual focus. Here it goes:
1. Turn the camera on
2. Switch to any mode - portrait/landscape etc
3. Press and hold the 'OK' button on the centre for a second until you see a MF/AF option on the screen
4. Switch to MF and focus on any subject by pressing the up/down keys.
Most likely, your camera has been turned to Manual Focus option, which is why it is not focussing any more. Follow the steps above and turn it back to Auto Focus option and let me know if your problem gets solved.
Take it off manual focus? There may be an "all reset" option in one of the menus that makes the camera factory default whenever its turned on, usually this is full auto mode. If the camera will only focus when the zoom is used, there may be a secondary lens inside the lens barrel that is not moving as it should. Time to service it if that is the case.
Way to check settings is to take the batteries out for a while, it should revert to factory default settings. I tell a lot of People to try this, it works an amazing number of times. Auto focus looks for vertical lines, what are You shooting at? Try rotating the camera 90 degrees, if it locks better,Bingo. Subjects without much contrast are hard to lock focus on
iESP is the default auto focus setting for the C-8080 Wide Zoom camera. It uses a contrast detecting system to analyze the entire image by comparing the subject against the background to achieve focus. When the shutter button is pressed half way on the C-8080 Wide Zoom, the AF target mark automatically moves to an area of the image where it finds the optimal contrast.
iESP is the default auto focus setting for the C-5060 Wide Zoom camera. It uses a contrast detecting system, to analyze the entire image by comparing the subject against the background to achieve focus. When the shutter button is pressed half way on the C-5060 Wide Zoom, the AF target zone automatically moves the to an area of the image where it finds the optimal contrast.