Please share some tips about P880 foussing

Dancheng

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I have got my P880 and the charger (which the eBay seller forgot to send me initially) sorted out a few weeks ago.

Did not play with it much before we went out for a weekend trip. Most of the pictures I took were a bit blurry, particularly the indoor ones. But I did recall that I had half pressed the shutter button to wait for the green AF dot to appear in the EVF before pressing it down totally to take pictures.

Yesterday got sometime at home to try out focussing in my study room. I aimed the P880 at a book shelf around 6 feet away from where I sit. The lighting was normal in that I can read a book easily.

The P880 was set to P mode or A mode. The flash was flipped up ready to trigger.

AF was a hit-and-miss game using full wide angle 24mm. Sometimes green (OK) and sometimes red (not OK). Even when AF is green, the picture was blurry.

AF was a bit better when the zoom ring was at 50mm. AF got green more often than red. When AF was green, the picture was real sharp. Also notice that the focusing area (the [ and ] brackets) on the EVF had locked onto a smaller area e.g. label of a box on the book shelf.

Also tried MF. But it was not a easy thing to do as the image inside the magnified window on the EVF was not very smooth and thus difficult to judge in-focus or not. Sometimes MF works i.e. I can see the vertical bar on the EVF is approaching or leaving the +ve end when I turned the manual focus ring. But sometimes, the vertical bar is already at the +ve end, thus turning the manual focus ring had no effect. Hence did not know if MF is done or not done.

Appreciate P880 users to throw some light (pun intended) on this P880 focussing problem. Thanks!
 
chiue
880, 7590, 6440
 
I am not the expert chiue is, but one quick suggestion; make sure the "Accessory Lens" option is turned "off". I notice an increase in focus time and more missed focus (red dot) with it on at 24mm.
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jamesm007 (Z612, P880)
http://s195.photobucket.com/albums/z77/jamesm700/
 
The lighting was normal in that I can read a book easily.
Better to tell us what EV @ ISO 100 it is.

http://en.wikipedia.org/wiki/Exposure_value

For example even with my poor eyes I can read a newspaper in the indoor light which I guess would be EV 6 @ ISO 100
The P880 was set to P mode or A mode. The flash was flipped up ready
to trigger.
P vs A would be a big difference. If you use EV6 at P, 1/4th sec at f/4
If you use A, what aperture will you have chosen?

What I am saying is that you need to eliminate the chance of motion blur affecting your results. Motion blur is separate from focussing.

If you are going to test in EV 6 conditions, to eliminate the factor of motion blur, sit the camera on a tripod and use timed shutter release.
Also tried MF. But it was not a easy thing to do as the image inside
the magnified window on the EVF was not very smooth and thus
difficult to judge in-focus or not. Sometimes MF works i.e. I can
MF on an EVF camera is nothing like MF on an DSLR. MF is simply you trying to make sense of what the sensor sees. MF on a DSLR is your eye looking directly through glass so it is "smooth" and you can judge by yourself not rely on the sensor.

MF on the P880 needs a tripod, as Mike used to say.

--



Ananda
http://www.flickr.com/photos/32554587@N00/
http://picasaweb.google.com/AnandaSim
 
Thanks all for your suggestions.

In particular, James has pointed me to the right direction. He asked me to check if the "Accessory Lens" option is off.

It turns out that I have put on a Skylight filter to protect the lens of the P880. Upon setting "Accessory Lens" option to ON, my focusing problem was solved. AF is more reliable (green most of the time) and the photo is no more blurry.

Thanks to all again!

Daniel
 
Yesterday got sometime at home to try out focussing in my study room.
I aimed the P880 at a book shelf around 6 feet away from where I sit.
The lighting was normal in that I can read a book easily
Also notice that the focusing area (the [ and ] brackets) on the EVF
had locked onto a smaller area e.g. label of a box on the book shelf.
You may want to try the same shot using CENTER Af Zone. I can only assume you were using the default Multi Af Zone.

jr
 
What does the accessory lens function do to the camera?

So no filters, it should be off. With filter (eg. skylight/UV), it should be on?

--
Pee eight eight zero lover
 
What does the accessory lens function do to the camera?
Go to this Kodak link for information about the P880.

" http://www.kodak.com/eknec/PageQuerier.jhtml?pq-path=6255&pq-locale=en_US&ekNumber=EKN030484&locsvcsEntryPath=7372/7373/7377 "
So no filters, it should be off. With filter (eg. skylight/UV), it should be on?
Theoretically it should be off with filters such as UV and "on" with with macro lens or telephoto lens, however as in this case if it works better with it "on" then that is the right setting for your set up. It never hurts to experiment and see what works and does not work.

--
jamesm007 (Z612, P880)
http://s195.photobucket.com/albums/z77/jamesm700/
 
You may want to try the same shot using CENTER Af Zone. I can only
assume you were using the default Multi Af Zone.
Hi John,

I am using CENTER AF Zone now. It does help to take sharper pictures in my P880. Thanks!

Daniel
 
Theoretically it should be off with filters such as UV and "on" with
with macro lens or telephoto lens, however as in this case if it
works better with it "on" then that is the right setting for your set
up. It never hurts to experiment and see what works and does not work.
Hi James,

That is exactly what I was thinking. Initially, I never thought a filter was an accessory lens. Hence with the filter attached, the "Accessory Lens" option was set to OFF. As you say, there is no harm to experiment. Setting the same option to ON with the filter attached does help my P880 to focus.

Thanks again.

Daniel
 
What I am saying is that you need to eliminate the chance of motion
blur affecting your results. Motion blur is separate from focussing.
Thanks for the tips. Indeed, I was mindful to keep the shutter speed to be at most 1/40 sec to eliminate motion blur.

I was then quite certain that the blurry pictures were due to focusing difficulty.

Now it was solved by setting the "Accessory Lens" option to ON because I was using a skylight filter to protect the P880 lens.

Cheers!
 
Glad to know you have come to your own conclusion.

I have different experience - I always have a uv filter on. Not an expensive one, just a Hoya.

Dude!

1/40th sec is not good enough to prove anything. Either the camera must be on a tripod or to be objective, I would use 1/100 or 1/250 - but of course, you'll never achieve that indoors without extra light, so a tripod is the best for testing.

I have not changed my Accessory setting. Of course indoors, if you shoot close objects, DOF is pretty shallow. Also, most indoor stuff - fabrics, wood grain, are not great at providing contrast for focussing.

A photo that does not prove anything - tripod mounted indoors.



Hand Held 1/8th sec - slightly less sharp, different church



--



Ananda
http://www.flickr.com/photos/32554587@N00/
http://picasaweb.google.com/AnandaSim
 
1/40th sec is not good enough to prove anything. Either the camera
must be on a tripod or to be objective, I would use 1/100 or 1/250 -
but of course, you'll never achieve that indoors without extra light,
so a tripod is the best for testing.

I have not changed my Accessory setting. Of course indoors, if you
shoot close objects, DOF is pretty shallow. Also, most indoor stuff -
fabrics, wood grain, are not great at providing contrast for
focussing.
You can actually do good hand held if you have a steady hand. This was shot at an ISO of 80, aperture of 8.0 and shutterspeed of 1/20th of a second, no tripod:



This can change though based on focal length. The further the zoom, the higher the probability any movement will be carried to the photo. Judging by what he has said so far, I think his problem may go further than just changing the extra lens setting though. There are just too many factors involved that he really didn't discuss that could contribute to the problem. I think spending a little time with the camera will give him the info he needs as his experience with the camera grows.
 

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