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**wtlwdwgn** · 11-18-2014, 06:30 PM

Originally posted by zzeitg

Interesting... I always supposed that it's better to have slightly underexposed rather than overexposed shot (as it's easier to "repair" such shot by post-processing). But if I understand the ETTR advice correctly, it's prompting us to overexpose instead?

No, ETTR up to the edge but not overexposed. Blocked highlights have no data (detail) and can't be recovered. The main reason for ETTR is provide as much data in the shadows as possible. Just my $0.02.

normhead · 11-18-2014, 07:17 PM

Originally posted by wtlwdwgn

No, ETTR up to the edge but not overexposed. Blocked highlights have no data (detail) and can't be recovered. The main reason for ETTR is provide as much data in the shadows as possible. Just my $0.02.

With the caveat that if your histogram indicates that you have more dynamic range than you need, you expose to the left, to increase contrast. But not all the way to the left, the histogram isn't always 100% accurate so give yourself a little bit of room to play with.

noelpolar · 11-18-2014, 10:55 PM

I have my color space set to Adobe RGB as I read somewhere it gives a more accuate/reliable camera histogram......can't remember where I read this....but it seemed to make sense at the time.

LensBeginner · 11-19-2014, 02:06 AM

Originally posted by wtlwdwgn

No, ETTR up to the edge but not overexposed. Blocked highlights have no data (detail) and can't be recovered. The main reason for ETTR is provide as much data in the shadows as possible. Just my $0.02.

It really depends on
1. how much the histogram is accurate (sometimes you have blinkies in the playback windo because it's based on a jpeg rendering, while you've still got some margin in the RAW) and
2. the distribution of the values per channel. Sometimes you're fine in two channels, luminance histogram looks good but you're clipping the third channel (that is often the red one) badly...

Tom777 · 11-19-2014, 09:55 AM

Thank you all for the comments so I have been using Av mode well trying to get used to it.

I take a lot of photos within my local church that is when I get problems with the Light conditions as its quiet dark That's when I was using Tav mode, so this week I will try other modes,
I can sort them in Lightroom I know that, as they are all raw files
the answers have certainly gave me a lot to think about, just have to practise practise.

I would like to get into using the Manuel mode

Tom G

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11-18-2014, 06:30 PM	#16
wtlwdwgn Site Supporter Join Date: Jan 2007 Location: Billings, MT Photos: Gallery \| Albums Posts: 13,853	Originally posted by zzeitg Interesting... I always supposed that it's better to have slightly underexposed rather than overexposed shot (as it's easier to "repair" such shot by post-processing). But if I understand the ETTR advice correctly, it's prompting us to overexpose instead? No, ETTR up to the edge but not overexposed. Blocked highlights have no data (detail) and can't be recovered. The main reason for ETTR is provide as much data in the shadows as possible. Just my $0.02.

11-18-2014, 07:17 PM	#17
normhead Pentaxian Join Date: Jun 2007 Location: Near Algonquin Park Photos: Gallery \| Albums Posts: 40,451	Originally posted by wtlwdwgn No, ETTR up to the edge but not overexposed. Blocked highlights have no data (detail) and can't be recovered. The main reason for ETTR is provide as much data in the shadows as possible. Just my $0.02. With the caveat that if your histogram indicates that you have more dynamic range than you need, you expose to the left, to increase contrast. But not all the way to the left, the histogram isn't always 100% accurate so give yourself a little bit of room to play with.

11-18-2014, 10:55 PM	#18
noelpolar Veteran Member Join Date: Oct 2013 Location: Goolwa, SA Photos: Gallery Posts: 4,310	I have my color space set to Adobe RGB as I read somewhere it gives a more accuate/reliable camera histogram......can't remember where I read this....but it seemed to make sense at the time.

11-19-2014, 02:06 AM	#19
LensBeginner Veteran Member Join Date: Sep 2014 Photos: Albums Posts: 4,696	Originally posted by wtlwdwgn No, ETTR up to the edge but not overexposed. Blocked highlights have no data (detail) and can't be recovered. The main reason for ETTR is provide as much data in the shadows as possible. Just my $0.02. It really depends on 1. how much the histogram is accurate (sometimes you have blinkies in the playback windo because it's based on a jpeg rendering, while you've still got some margin in the RAW) and 2. the distribution of the values per channel. Sometimes you're fine in two channels, luminance histogram looks good but you're clipping the third channel (that is often the red one) badly...

11-19-2014, 09:55 AM	#20
Tom777 Senior Member Join Date: Mar 2014 Photos: Gallery Posts: 153 Original Poster	Thank you all for the comments so I have been using Av mode well trying to get used to it. I take a lot of photos within my local church that is when I get problems with the Light conditions as its quiet dark That's when I was using Tav mode, so this week I will try other modes, I can sort them in Lightroom I know that, as they are all raw files the answers have certainly gave me a lot to think about, just have to practise practise. I would like to get into using the Manuel mode Tom G

some advise please on my K3 settings

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