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08-05-2011, 03:06 PM   #1
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Exposure Compensation for a manual lens

Hi everyone,
How do you use exposure compensation for a fully manual lens? I have a K-r and have problems with highlights being clipped and want to better control that. This occurs even when I have the dynamic range extended (highlight correction on, shadow correction on high). what can I do to fix this?

08-05-2011, 03:20 PM   #2
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What lens, exactly?
08-05-2011, 05:30 PM   #3
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And how are you using it? In what mode(s)?
08-05-2011, 05:42 PM   #4
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The reason you end to see more blown highlights with manual lenses is that multisegment metering is not available, so the camera can't protect the highlights.

I'm assuming you are referring to a K-mount as opposed to M42 lens. In that case, you have to shoot in M mode, so automatic exposure compensation doesn't exist. just the basic old fashioned manual kind - take whatever exposure the camera suggests when you press the button to meter, and then speed up the shutter a notch or two.

08-05-2011, 05:47 PM   #5
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Well 2 of the lenses I have been using are the Horus Bennu 50 mm F/1.7 , and LZOS Jupiter 9 MC 85 mm F/2. I was using them in low light, available light indoors.
08-05-2011, 06:10 PM   #6
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Both screwmount, eh? As Marc said, in M-mode you'd meter, then use the e-dial to adjust the exposure appropriately -- sort of a manual EV compensation. In any Auto mode, you default to Av. Set the aperture; then you can use EV compensation as needed. An especially bright or dark subject may throw off the exposure, so shoot and chimp until you have an acceptable exposure.
08-05-2011, 06:50 PM   #7
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You could also meter different areas in the scene and just take multiple shots (meter and lock on brightest: Shoot; meter and lock on average: Shoot; etc etc). If you meter off of the brightest, that will solve your blown highlight issues, however you may lose the details in your dark areas. The K-R has good d-range, some good post processing can help considerably in recovering dark area details...




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08-05-2011, 07:04 PM   #8
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Ok, thanks for letting me know.

How I avoid blown highlights (although, I don't really care anymore).

1) Set the camera to spot metering, M mode.
2) Set the camera so the green button does AV shift.
3) Set your aperture.
4) Set exposure compensation to +3 EV (you might need to change how your camera sets exposure values to get to +3).
5) Spot meter off of the brightest thing in the scene with the green button. A cloud, the white curtains next to a window, etc., should work. Center the viewfinder over the brightest section of the scene.
6) Focus, compose, shoot away.

__ Basically you are telling your camera to meter the brightest thing as +3.. or a bright-white (but not blown). This will preserve the highlights ASSUMING that you actually spot meter off of the brightest thing in your shot. Sometimes this won't work, because it will leave your subject in total darkness.

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