Reply to thread

Message

<blockquote data-quote="WayneF" data-source="post: 202336" data-attributes="member: 12496">That may be true of the Blue channel, but I see it rather different for red and green.&nbsp; Speaking of your first original picture.&nbsp; Red starts clipping face at about 253, and by 250 is her whole right side (camera left), and 240 picks up much of the rest.&nbsp; It is simply too much exposure.&nbsp;&nbsp; You can do this ALT business on the individual channels too.&nbsp; Your red channel is quite HOT.Is it RAW or JPG?&nbsp; JPG can add a lot of camera settings.&nbsp;&nbsp; Contrast can be good for some inanimate objects, but human skin is not gaudy, and it looks better smooth. We cannot treat all pictures the same.There are so many ifs and buts possible.&nbsp; <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" />Blinkers.... are you looking at the individual RGB channels in camera, or only at the luminosity composite single histogram?&nbsp; &nbsp; You always&nbsp; need to look at the three RGB individual channel histograms.&nbsp; Regarding clipping, the single composite histogram is totally meaningless, see <a href="http://www.scantips.com/lights/lights/histograms.html" target="_blank">http://www.scantips.com/lights/lights/histograms.html</a>Was it Manual flash mode or commander TTL?Underexposing ambient 1 stop can be good, but then if adding a full TTL &quot;proper&quot; exposure, these two exposures add (ambient and flash), to still be about 2/3 stop overexposed.&nbsp;&nbsp; TTL BL tries to &quot;balance fill&quot; by reducing the flash exposure to make this less significant (but it is never zero).&nbsp;&nbsp; We still have to watch it (including the three individual RGB histograms) and make sure it is not too much.&nbsp;&nbsp; You can always add -EV flash compensation if too much.Umbrellas can't get too close, but they can be too much light from the flash.&nbsp; And shoot-through umbrellas typically have a center bright spot,&nbsp; they should be feathered (to aim maybe a foot in front of nose, instead of at the nose).&nbsp; Portraits, esp of pretty girls, like smooth lighting, moderation, not contrast and extremes.If too much flash, then back off on the flash power or compensation.&nbsp; We know that human faces are&nbsp; NOT bright white (not like a sheet of printer paper in scene is white), and so faces should NOT be very close to 255 (like maybe the printer paper should).</blockquote>

[QUOTE="WayneF, post: 202336, member: 12496"] That may be true of the Blue channel, but I see it rather different for red and green. Speaking of your first original picture. Red starts clipping face at about 253, and by 250 is her whole right side (camera left), and 240 picks up much of the rest. It is simply too much exposure. You can do this ALT business on the individual channels too. Your red channel is quite HOT. Is it RAW or JPG? JPG can add a lot of camera settings. Contrast can be good for some inanimate objects, but human skin is not gaudy, and it looks better smooth. We cannot treat all pictures the same. There are so many ifs and buts possible. :) Blinkers.... are you looking at the individual RGB channels in camera, or only at the luminosity composite single histogram? You always need to look at the three RGB individual channel histograms. [B]Regarding clipping, the single composite histogram is totally meaningless,[/B] see [URL]http://www.scantips.com/lights/lights/histograms.html[/URL] Was it Manual flash mode or commander TTL? Underexposing ambient 1 stop can be good, but then if adding a full TTL "proper" exposure, these two exposures add (ambient and flash), to still be about 2/3 stop overexposed. TTL BL tries to "balance fill" by reducing the flash exposure to make this less significant (but it is never zero). We still have to watch it (including the three individual RGB histograms) and make sure it is not too much. You can always add -EV flash compensation if too much. Umbrellas can't get too close, but they can be too much light from the flash. And shoot-through umbrellas typically have a center bright spot, they should be feathered (to aim maybe a foot in front of nose, instead of at the nose). Portraits, esp of pretty girls, like smooth lighting, moderation, not contrast and extremes. If too much flash, then back off on the flash power or compensation. We know that human faces are NOT bright white (not like a sheet of printer paper in scene is white), and so faces should NOT be very close to 255 (like maybe the printer paper should). [/QUOTE]

Verification