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12-28-2009, 07:27 PM   #1
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K-7 odd results vs. K20

Ok, so over the holidays I had the K-7 with a 43mm limited lens in the green mode in order to catch all the ripping of paper. I took pictures both christmas eve and christmas day and noticed a lot of the pictures appeared blurred. The camera was shooting everything at iso 800.

I just did some test shots with the same above mentioned lens on both the K-7 & K20 in Green mode, P mode and AV mode. For example in AV mode I set the K20 at 1/30 with a f1.9, the K-7 I could only get 0.6" with a f1.9 using the same lens.
I also noticed the iso settings were not close to each other.

I know these are not the same cameras but I thought I should be able to set them at the same settings in AV mode.

Does anyone have any ideas what's going on? I'm assuming it has to do with settings in the K-7.

If anyone has any insight it would be greatly appreciated.

12-28-2009, 07:33 PM   #2
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Do you have the auto ISO set the same on both cameras?
12-28-2009, 07:35 PM   #3
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Is the ISO on both the K7 and K20D the same?
12-28-2009, 07:36 PM   #4
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I checked that the K20 is set from 100 to 3200 for auto and k-7 is 100 to 800. I tried changing the k-7 to match k20 but didn't make any difference.

12-28-2009, 07:42 PM   #5
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A lot of what you are trying to do is rather confusing. But, the the issue with iso selection can be tweaked in the K-7, as it's behaviour is custmoziable. Check pg91 in the instruction manual.

P.S: Also, remember one of the best features IMO is the incredible 70+ odd zone metering with the K-7, which is a vast improvement over the older models. Metering dictates the iso, aperture and shutter, and if the two camera always come with the same numbers, then there is no point in having this fancy metering algorithm with the k-7.
12-28-2009, 07:55 PM   #6
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k-7

Sorry not trying to be confusing. I did go thru the page you mention. I guess what I'm confused about is why in a brightly sunlit room the K-7 set the iso at 800 but the k20 set it to 200 using the same lens.


QuoteOriginally posted by pcarfan Quote
A lot of what you are trying to do is rather confusing. But, the the issue with iso selection can be tweaked in the K-7, as it's behaviour is custmoziable. Check pg91 in the instruction manual.

P.S: Also, remember one of the best features IMO is the incredible 70+ odd zone metering with the K-7, which is a vast improvement over the older models. Metering dictates the iso, aperture and shutter, and if the two camera always come with the same numbers, then there is no point in having this fancy metering algorithm with the k-7.
12-28-2009, 08:01 PM   #7
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Did you have the metering method set the same on both cameras?
Spot / Center Weighted / Multi Segment

What about exposure comensation? Those settings were also the same?
12-28-2009, 08:31 PM   #8
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QuoteOriginally posted by skid2964 Quote
Did you have the metering method set the same on both cameras?
Spot / Center Weighted / Multi Segment

What about exposure comensation? Those settings were also the same?

That's what I was going to ask.

12-29-2009, 08:48 AM   #9
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QuoteOriginally posted by stl09 Quote
Sorry not trying to be confusing. I did go thru the page you mention. I guess what I'm confused about is why in a brightly sunlit room the K-7 set the iso at 800 but the k20 set it to 200 using the same lens.
It did this in which mode as described in page 91. There are three differnet ways the K-7 chooses to change iso vs shutter (This is in Av mode), if it is choosing iso 800, then choose the option for less agressive iso change and the camera will try to keep the iso low and set a lower shutter to compensate. The nice thing with the K-7 is this is customaziable.


Also, metering mode will definitely have an influence, as is the 77 metering zones which are fixed. To mimnimize these differneces I would choose point metering, and choose to have the iso change conservatively (as in pg91), and you should be able to get similar results.
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