Changing white balance in K10 multiple exposure mode

So this may be a bit obscure, but does anyone know if there is any way to change white balance settings between exposures in multiple exposure mode?

According to the K10 manual (p. 166), pressing RAW or MENU commits the exposures taken up to that point and exits multiple mode, but it looks like pressing the Fn button to change WB does this too (even though it isn't mentioned).

Has anyone else noticed this, is it a glitch, am I doing something wrong or is there a workaround? It would be much easier than gelling my lights.

And while I'm at it, does the K20 or K7 fix this?

Thanks

Hi! If you're talking about multi-exposure (Menu--> Rec Mode) then yes, changing any settings after turning On Multi exposure, resets that function. It is meant to do that, so it's not a bug (but is annoying, I know). You can't change the white balance between shots in multi-exposure mode, as the manual (I don't know which page) states: you can't use bracketing (in our case WB) and multi exposure in the same time

The K20 behaves in the same way, for the K7 I can't say.

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Bela Nagy
http://www.speopixel.hu
http://www.flickr.com/photos/nbela/
http://www.pentaxphotogallery.com/belanagy

Thanks for confirming - I know you can't use extended bracketing, but I was hoping I could change it manually, especially because the Fn isn't mentioned in the manual.

For an enthusiast/semi-pro camera, why does Pentax make it difficult to do interesting things. I'm also choked that they blocked access to focus micro-adjust, only to put it back on later cameras (they just made it more difficult for us K10 owners).

You can play with WB and colour shifts in a RAW converter to your heart's content, so I can't see the lack of this particular feature as annoying.

I agree, however, that the Multiple Expsr. mode should be more "sticky" (at least an option to make it more permanent could be added if the user wishes to make it so).
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Marcin
http://flickr.com/photos/sankos/

Yes, I can adjust WB in a raw converter, but this is a composite (multiple) exposure - I'm lighting one part one way and another part differently.

Doing it in post will require I change the WB in one image and then merge the two parts with careful masking, so it'll take a long time and still not look as clean as just doing it properly at exposure time.

Easiest and best way to do it now is by gelling the lights on one of the exposures, but it would have been much easier to change the WB.

My guess is that multi-exposure is done on the sensor side. (summing the electrons hitting each pixel during each exposure)

Overwise it will be only available in jpeg and not in raw.

White balance is done during the RAW to jpeg conversion.

So even if pentax wanted to make it possible, it is not.
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http://www.popopow.com/

I'm not sure I understand what kind of final effect you want to achieve. But if the setting of WB were possible in the ME mode wouldn't the various temperatures be averaged out anyway? so the complex lighting effect achieved only by WB shift would become unified anyway. I think that by using filters on the flash you'll achieve a different effect than you would with WB changes between exposures, but I may be wrong.

Lightroom's gradual filter effect could be used to somehow imitate the effect you seem to want to achieve, or the Silkypix Pro feature where the shadow and the highlight WB can be set independently but other than that it's masking and merging, so a more complex workflow...
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Marcin
http://flickr.com/photos/sankos/

Oh, maybe you mean imitating a multiple flashes setup with mixed temperatures by doing it in the ME mode. Right, now I think I know what you want to achieve. But I wouldn't count on another firmware change for the K10D to allow you getting the effect...
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Marcin
http://flickr.com/photos/sankos/

Yup - I think you nailed it.

In my setup, different parts of the frame are exposed separately by different lights (and I was hoping at different WBs), so what I want makes perfect sense. But thinking about the general case, what I want is pretty funky - and as you say, probably impossible.

I'll gel my lights.