Question about Olympus Camedia C-750 Ultra Zoom Digital Camera

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Focus Problem I recently bought Olympus C-750. The real problem i have with it so far is that when I point the camera towrds the subject, its focus is adjusted automatically and the subject looks very focused and clear, but when i press the shutter button, the camera re-focuses and makes the subject blurr and in the end pictures come out very blurry. Kindly help me out with that, i.e: do i need to do some setting to avoid that??? and plus i cannot find the manuual focus option in the camera. thanks

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Re: Focus Problem

I have the C740, which I believe works very similarly if not identically. Unless you have the camera in full time auto focus, I don't believe it actually focuses on the subject until you've pressed the shutter button half way. Until then, the subject may look in focus in the viewfinder, but is not. When you fully depress the shutter in one motion (rather than pressing half way first), the camera will attempt to focus before it takes the shot. If you are not careful about camera movement, you may inadvertently be focusing on something other than what you intended. My camera (and it seems all digicams) has trouble focusing in low light, so you definitely want to use the half press in such situations. Even then, I don't always get the focus correct. Thank the digital Gods for instant feedback! Personally, I almost always use the half press method. To get the 740 in manual focus, you hold the "OK" button down until you see the viewfinder display a focusing scale. It takes a second or so. You should also see "MF" and "AF" designations in the lower left corner of the viewfinder when the scale displays. Use the left and right arrows to select the focus mode you want (i.e. MF or AF), then use the up and down arrows to adjust the focus distance. You'll notice that the area you are focusing on is enlarged when you use the up and down arrows.

Posted on Sep 13, 2005

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Could be some moisture causing the sticking. You could bury the camera in rice for a couple of days to absorb the moisture. As far as focusing on a correct subject in a close-up, you should set your auto focus on spot focussing. Then, only a tiny portion of the center of your screen is the focus point. Center the important part and press the shutter half-way to lock the focus and then you can move the camera to a better position and press the rest of the way.

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How to get manual focus on Olympus Camedia C-750 ultra zoom digital camera


TTTTTTTTTTTTTTTTTTTTTTTTITf correct focus cannot be obtained
When the subject to be focused is not on the AF target mark (not positioned
in the center of the composition), you can use the following steps to obtain the
correct focus on the subject. This operation is referred to as "focus lock".
Determine the position of the subject after focusing (Focus Lock)
1 Press the power switch.
• The camera turns on in the shooting
mode.
• The lens extends and the monitor turns
on.
• The orange lamp lights.
2 Turn the mode dial and select a
shooting mode.
"Shooting mode" (P.36)
3 Position the AF target mark on
the subject you want to focus on.
• When shooting a hard-to-focus
subject, point the camera at an object
about the same distance away as the
subject.
Press the shutter button halfway
until the green lamp lights.
• When the green lamp lights steadily,
the focus and the exposure are locked.
• When the green lamp blinks, the focus
and exposure are not locked. Release
your finger from the shutter button, reposition
your subject and press the
shutter button halfway again.
5 Keeping the shutter button
pressed halfway, recompose
your shot.
6 Press the shutter button fully.
Try the above, info from D-535, C-370 and X-450.
I can email you the complete manual if this works.
Regards
Phillip

Sep 12, 2009 | Digital Cameras

1 Answer

Focusing Problems


* Get AF off the shutter release and onto the * button using the custom function. * Use the center focus point only. Force yourself to pick what you want in focus, AF, then recompose and shoot, a habit far more effective than computer driven multiple AF points for just about everything. * AF performance degrades in low light no matter what camera you own. This is life. At least if you control the when/where of AF, you can try and choose high contrast points in the scene to focus on, points that will help mitigate the low light. * Not sure if this applies to you, but it does apply to many a pixel peeper...if something prints sharp at 8x10 or 11x14 then AF has succeeded even if it's a little off at 100% in Photoshop. AF is not perfect and the tolerances are not necessarily up to producing 40" enlargements, which is what 100% in Photoshop is. Having said that, in good lighting with good target contrast the AF on your 20D often will nail focus so perfectly that it will hold up even at 40".

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Take a look at this discussion of shutter lifepsan. http://www.dphoto.us/forum/archive/index.php/t- 4531.html To summarize these posts, average number of cycles (one instance of open and close shutter) is somewhere between 50,000 and 150,000 cylcles. As one poster pointed out, we seem to take more pictures with digital than with film cameras, so a hundred thousand cylces might not be that many. I have a c2500L bought used at online auction and have probably taken about 1500 pics so far. Don't know how much previous owner used it. It's amazing how many pictures you take when you don't need to spend money on film and processing! The c2500L is a really nice camera and I hope that mine lasts many years. My c2500L is an early one with version 1.0 firmware (later models have version 1.20 sticker on side) and was built in about 1999 I think. As for autofocus, mine works great as long as I have the focus mode (regular, macro, super macro) and zoom level set correctly for my distance to subject. Fortunately, the green focus indicator lamp near viewfinder flashes when focus isn't right. A few other thoughts on focus: taking picture through glass, in mirror, or scene with no contrast (like a solid grey sky) might require you to use the manual focus or focus lock modes. Window glass fools camera, which tries to focus on glass instead of your desired subject. For mirror, you need to double the normal focus distance (measure distance from camera to mirror, focus on something twice as far, then lock focus and take your pic in mirror). With SLR film camera, mirrors and glass don't cause trouble because you are focusing manually. One other note on fuzzy or dark corners on pictures: if you use filters, especially a thick filter like a polarizer, you should probably get a 43mm to 46mm adapter and use bigger filter. At widest angle zoom, my polarizer causes vignetting in corners because the filter actually is "seen" by lens in corner of pics. Oops, I should have thought of that before buying filters I guess. Hope this helps some.

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2 Answers

The subject is very blury or out of the picture


You are expecting too much for any auto mode. When shooting under low light conditions, the camera may take longer to achieve focus lock. If the subject is moving too, it will take even longer to lock focus. Try using manual focus for the conditions you described.

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1 Answer

How many focusing points are there provided in the camera to measure distance to a subject?


Normally the camera measures the distance to the subject using the 3 auto focus frames (left, center and right auto focus frames) in the viewfinder and selects the most appropriate point automatically. You can also select any one of the three points.

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1 Answer

Cannot focus on a particular subject


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Focus on a particular subject?


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1 Answer

Focus


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1 Answer

Focus on a particular subject


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