Live View

**hjoseph7** · 12-03-2014, 05:41 PM

My K-5 IIs underexposes by about 1 stop in Live-View, is this normal faulty or am I just nit-picking ?

Adam · 12-03-2014, 05:48 PM

Live view meters differently than through the viewfinder, so results may vary but from my experience it's generally more accurate.

**crewl1** · 12-03-2014, 05:53 PM

I have not seen that behavior - what mode are you shooting in, and what is your metering mode?
If you are in M with locked ISO there should be no difference.
Does this happen with multiple lenses?

VisualDarkness · 12-03-2014, 06:41 PM

Both of my K-5 often meters differently in liveview compared to through the viewfinder. It's quite logical when taking in mind that through the viewfinder it got a limited number of "spots" to take measurement from and try to guesstimate the exposure while in liveview is uses the actual image sensor. One thing I've noticed is that live view is is really conservative when it risks blowing out highlights in the picture.

**hjoseph7** · 12-05-2014, 08:06 AM

Originally posted by crewl1

I have not seen that behavior - what mode are you shooting in, and what is your metering mode?
If you are in M with locked ISO there should be no difference.
Does this happen with multiple lenses?

The ISO is locked. So when I'm in 'P' Automatic mode, either the shutter or the aperture is one stop lower than when I'm not in Live View.

When I'm in 'AV' Aperture Priority mode, then the shutter speed chosen by the camera is one stop higher than the shutter speed when I'm not in Live View.

Both images look fine to me, but the image taken in Live View looks a little bit under-exposed.

**pacerr** · 12-05-2014, 10:14 AM

But how does the actual exposure compare. In Auto mode(s) shutter speed is continuously variable but only reports in "fixed" stops as I understand it. In P-mode aperture would also report steps incrementally. Try comparisons between modes using a blank wall or northern sky light.

zekewhipper · 12-05-2014, 08:24 PM

To me, it meters in both modes the same, and I use liveview at work about everyday.

Usinish · 12-07-2014, 04:24 PM

In my experience it would not make any difference as for exposure.
Focusing is another thing - although slower I prefer focusing in LV.

nms_photog · 12-07-2014, 05:19 PM

What kind of exposure lengths are you working with? Why and all our only longer exposures? The light meter can pick up stray light from the view finder and throws off the exposure, especially in long exposure work. Hence, the reason you're provided with a view finder block.

12-03-2014, 05:41 PM	#1
hjoseph7 Site Supporter Join Date: May 2014 Location: Minnesota Photos: Gallery \| Albums Posts: 2,046	Live View My K-5 IIs underexposes by about 1 stop in Live-View, is this normal faulty or am I just nit-picking ?

12-03-2014, 05:48 PM	#2
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,594	Live view meters differently than through the viewfinder, so results may vary but from my experience it's generally more accurate. Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

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12-03-2014, 05:53 PM	#3
crewl1 Site Supporter Join Date: Jul 2010 Location: Los Angeles, CA Photos: Gallery \| Albums Posts: 9,807	I have not seen that behavior - what mode are you shooting in, and what is your metering mode? If you are in M with locked ISO there should be no difference. Does this happen with multiple lenses?

12-03-2014, 06:41 PM	#4
VisualDarkness Veteran Member Join Date: Nov 2011 Location: Uppsala, Sweden Photos: Gallery Posts: 4,439	Both of my K-5 often meters differently in liveview compared to through the viewfinder. It's quite logical when taking in mind that through the viewfinder it got a limited number of "spots" to take measurement from and try to guesstimate the exposure while in liveview is uses the actual image sensor. One thing I've noticed is that live view is is really conservative when it risks blowing out highlights in the picture.

12-05-2014, 08:06 AM	#5
hjoseph7 Site Supporter Join Date: May 2014 Location: Minnesota Photos: Gallery \| Albums Posts: 2,046 Original Poster	Originally posted by crewl1 I have not seen that behavior - what mode are you shooting in, and what is your metering mode? If you are in M with locked ISO there should be no difference. Does this happen with multiple lenses? The ISO is locked. So when I'm in 'P' Automatic mode, either the shutter or the aperture is one stop lower than when I'm not in Live View. When I'm in 'AV' Aperture Priority mode, then the shutter speed chosen by the camera is one stop higher than the shutter speed when I'm not in Live View. Both images look fine to me, but the image taken in Live View looks a little bit under-exposed.

12-05-2014, 10:14 AM	#6
pacerr Loyal Site Supporter Join Date: Jan 2008 Location: Paris, TN Photos: Gallery \| Albums Posts: 3,349	But how does the actual exposure compare. In Auto mode(s) shutter speed is continuously variable but only reports in "fixed" stops as I understand it. In P-mode aperture would also report steps incrementally. Try comparisons between modes using a blank wall or northern sky light.

12-05-2014, 08:24 PM	#7
zekewhipper Veteran Member Join Date: Dec 2010 Photos: Albums Posts: 307	To me, it meters in both modes the same, and I use liveview at work about everyday.

12-07-2014, 04:24 PM	#8
Usinish New Member Join Date: Jan 2013 Photos: Gallery Posts: 9	In my experience it would not make any difference as for exposure. Focusing is another thing - although slower I prefer focusing in LV.

12-07-2014, 05:19 PM	#9
nms_photog Senior Member Join Date: Jul 2011 Location: Mississippi Photos: Gallery \| Albums Posts: 282	What kind of exposure lengths are you working with? Why and all our only longer exposures? The light meter can pick up stray light from the view finder and throws off the exposure, especially in long exposure work. Hence, the reason you're provided with a view finder block.

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