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11-03-2008, 06:16 AM   #1
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K200D problem....

or photographer problem? (ie inexperience)

Hi everyone, I am new to posting here but not to reading. I have found this site very helpful.

Just a couple of months ago I bought myself a Pentax K200D. I have been really happy with it until just a couple of weeks ago.

At first all of my photos were really clear but now they are all really grainy....for example this one.....



and this one....



then there are the ones that I took a few weeks before....



and this one...



I am unsure how to get the EXIF data for each photo - unless I upload them to Flickr?

Anyway, I am really interested to know why there is such a change in clarity. Hopefully someone can help as all of my photos now have a 'grain'.

Cheers

Kate


Last edited by k8star; 11-03-2008 at 06:17 AM. Reason: added line in to post at the beginning
11-03-2008, 06:31 AM   #2
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Have you checked the ISO settings for your camera?
11-03-2008, 06:41 AM   #3
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Hi, well, after reading through this forum, I did check the ISO settings and for the first photo the ISO is 1600 1/1500 F8.0

and the second one the ISO is 1600 1/180 F11

I guess that the ISO is too high? Would that be right?

(and thanks for your reply!)

k8
11-03-2008, 06:53 AM   #4
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You just found your problem. Basically high ISO introduces noise in the picture. That is what gives the "grainy" effect. High ISO is useful in low light conditions. Otherwise a low ISO is always a better choice.

11-03-2008, 06:55 AM   #5
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Thanks - I thought that was it....now I need to work out how to get it back the way I like it! Cheers

k8
11-03-2008, 07:01 AM   #6
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Thats easy. Just press the Fn button while the camera is on. Press the right arrow button and you will be in the ISO settings.
11-03-2008, 07:07 AM   #7
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Thanks - found it and played around with it! Hopefully that will do the trick...will test it out on some (un)willing subjects in the morning!

Cheers

k8
11-03-2008, 09:21 AM   #8
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Bryan Peterson's book "Understanding Exposure" is a great guide to the relationship between shutter speed, aperture, and ISO. I highly recommend it.

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