How red is your red ?

Sandy Hancock · 05-21-2019, 12:29 AM - **5 Likes**

I don't know what sort of reds you guys are talking about, but I like to expose mine like this:

**GUB** · 05-21-2019, 12:58 AM - **2 Likes**

Originally posted by Sandy Hancock

I don't know what sort of reds you guys are talking about, but I like to expose mine like this:

Hope you correctly exposed it before drinking it!!

**GUB** · 05-21-2019, 01:08 AM

Originally posted by Ian Stuart Forsyth

And if you take a look your whites they will be overexposed well before your reds and that is my point if your whites are not clipped then your red are not unless your are under some kind of artificial light.

here in daylight light I have clipped my whites on purpose and even in to the first grey while nothing in the red and yellow flowers have clipped

That totally depends on the image

TonyW · 05-21-2019, 01:22 AM

Originally posted by GUB

That totally depends on the image

Are you suggesting this image clipped?

**GUB** · 05-21-2019, 01:56 AM

Originally posted by TonyW

Are you suggesting this image clipped?

I had to pull the exposure back half a stop (see EV in settings) to get the histogram within the margins but no, it does not appear to be clipped. But it is clear the red will clip first here.

**GUB** · 05-21-2019, 03:18 AM

Just a note to say I have been doing a few experiments with red / clipping etc and started a post here ;

Undies,Histograms,Reds,and Clipping. - PentaxForums.com

stevebrot · 05-21-2019, 10:10 AM

Originally posted by Ian Stuart Forsyth

if your whites are not clipped then your red are not unless your are under some kind of artificial light.

What whites?

You are quite correct, however. There is nothing special about a fully red subject as far as the sensor response goes. The meter may go strange, however.

Steve

Ian Stuart Forsyth · 05-22-2019, 11:38 PM

Originally posted by GUB

That totally depends on the image

It really depends on your WB for this image it looks like you are using daylight WB so your red channel is being multiplied by a factor of 2 stops an I suspect this is why your reds are so far to the right

---------- Post added 05-22-2019 at 11:43 PM ----------

Originally posted by GUB

I had to pull the exposure back half a stop (see EV in settings) to get the histogram within the margins but no, it does not appear to be clipped. But it is clear the red will clip first here.

Again its more than likely the raw converter that is what you think is clipping the reds because of how WB works, as for the exposure clipping the raw data its more than likely that its at least underexposed by the WB and for daylight WB that would be around 1 to 2 stops

MarkJerling · 05-22-2019, 11:48 PM - **1 Like**

Originally posted by Sandy Hancock

I don't know what sort of reds you guys are talking about, but I like to expose mine like this:

I bet that tastes better than GUB's undies!

Sandy Hancock · 05-23-2019, 12:07 AM - **2 Likes**

Originally posted by MarkJerling

I bet that tastes better than GUB's undies!

I can't guess what the undies tasted like, but the wine was sublime. Possibly the best cabernet I've ever tasted.

05-21-2019, 01:08 AM	#78
GUB Loyal Site Supporter Join Date: Aug 2012 Location: Wanganui Photos: Gallery \| Albums Posts: 5,760	Originally posted by Ian Stuart Forsyth And if you take a look your whites they will be overexposed well before your reds and that is my point if your whites are not clipped then your red are not unless your are under some kind of artificial light. here in daylight light I have clipped my whites on purpose and even in to the first grey while nothing in the red and yellow flowers have clipped That totally depends on the image Attached Images

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05-21-2019, 12:29 AM - 5 Likes	#76
Sandy Hancock Moderator Site Supporter Join Date: Feb 2012 Location: Adelaide Hills, South Australia Photos: Gallery \| Albums Posts: 11,272	I don't know what sort of reds you guys are talking about, but I like to expose mine like this:

05-21-2019, 12:58 AM - 2 Likes	#77
GUB Loyal Site Supporter Join Date: Aug 2012 Location: Wanganui Photos: Gallery \| Albums Posts: 5,760	Originally posted by Sandy Hancock I don't know what sort of reds you guys are talking about, but I like to expose mine like this: Hope you correctly exposed it before drinking it!!

05-21-2019, 01:22 AM	#79
TonyW Veteran Member Join Date: Feb 2016 Posts: 706	Originally posted by GUB That totally depends on the image Are you suggesting this image clipped?

05-21-2019, 01:56 AM	#80
GUB Loyal Site Supporter Join Date: Aug 2012 Location: Wanganui Photos: Gallery \| Albums Posts: 5,760	Originally posted by TonyW Are you suggesting this image clipped? I had to pull the exposure back half a stop (see EV in settings) to get the histogram within the margins but no, it does not appear to be clipped. But it is clear the red will clip first here.

05-21-2019, 03:18 AM	#81
GUB Loyal Site Supporter Join Date: Aug 2012 Location: Wanganui Photos: Gallery \| Albums Posts: 5,760	Just a note to say I have been doing a few experiments with red / clipping etc and started a post here ; Undies,Histograms,Reds,and Clipping. - PentaxForums.com

05-21-2019, 10:10 AM	#82
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by Ian Stuart Forsyth if your whites are not clipped then your red are not unless your are under some kind of artificial light. What whites? You are quite correct, however. There is nothing special about a fully red subject as far as the sensor response goes. The meter may go strange, however. Steve

05-22-2019, 11:38 PM	#83
Ian Stuart Forsyth Pentaxian Join Date: May 2009 Location: Somewhere over the rainbow Photos: Gallery Posts: 1,531	Originally posted by GUB That totally depends on the image It really depends on your WB for this image it looks like you are using daylight WB so your red channel is being multiplied by a factor of 2 stops an I suspect this is why your reds are so far to the right ---------- Post added 05-22-2019 at 11:43 PM ---------- Originally posted by GUB I had to pull the exposure back half a stop (see EV in settings) to get the histogram within the margins but no, it does not appear to be clipped. But it is clear the red will clip first here. Again its more than likely the raw converter that is what you think is clipping the reds because of how WB works, as for the exposure clipping the raw data its more than likely that its at least underexposed by the WB and for daylight WB that would be around 1 to 2 stops

05-22-2019, 11:48 PM - 1 Like	#84
MarkJerling Moderator Site Supporter Join Date: May 2012 Location: Wairarapa, New Zealand Photos: Gallery \| Albums Posts: 20,406	Originally posted by Sandy Hancock I don't know what sort of reds you guys are talking about, but I like to expose mine like this: I bet that tastes better than GUB's undies!

05-23-2019, 12:07 AM - 2 Likes	#85
Sandy Hancock Moderator Site Supporter Join Date: Feb 2012 Location: Adelaide Hills, South Australia Photos: Gallery \| Albums Posts: 11,272	Originally posted by MarkJerling I bet that tastes better than GUB's undies! I can't guess what the undies tasted like, but the wine was sublime. Possibly the best cabernet I've ever tasted.