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FORUMS Post Processing, Marketing & Presenting Photos RAW, Post Processing & Printing 
Thread started 16 Aug 2013 (Friday) 11:36
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HELP: Isolating subject on black drop

 
Sens0r
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Aug 16, 2013 11:36 |  #1

Hi,

I took this photo yesterday after many trials/errors..

The subject looked good on the camera screen, but dim in Lightroom (Macbook Pro, half brightness). I made some adjustments until I reached this result.

When I came to work today, I checked the photo on a Dell screen only to find that some of the backdrop (tshirt actually) still appears in the photo.. Even more so on my phone screen (Galaxy S2)

I'm sure you know what I was trying to make the photo look like, how do I do that?

I want the camera to appear bright, but still make the backdrop completely disappear.

I still have the RAW file and can still shoot it again tonight..

How do I make sure I'm doing correct processing that would look the same on multipile devices? (Critical if I wanted to sell work or participate in competitions)

Shutter Speed:1/10 second
Aperture:F/6.3
Focal Length:50 mm
ISO Speed:400
Two flashes set to (1/64), one on umbrella-reflected (camera right), one on beauty dish (camera left).

IMAGE: http://fc00.deviantart.net/fs71/i/2013/227/a/5/soviet_beauty_by_amerabian-d6ibksc.jpg

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Lowner
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Aug 16, 2013 12:49 |  #2

Light the subject sufficiently to expose as you want. But have the black background far enough away from the subject that the light cannot reach it in enough quantity to affect it.

Sounds to me as if there is not enough light AND that the black background is far too close.


Richard

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BigAl007
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Aug 16, 2013 12:55 |  #3

What editing options do you have? Two ways I would go, either use a local adjustment brush in LR/ACR to darken the background. Or in PS two conversions on different layers, one for the background and one for the subject. Put the dark background over the top and then set the blend properties to allow the lighter subject to show through. If you want the background to be completly uniform then add a layer filled with black instead of the darker conversion.

Alan


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tonylong
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Aug 16, 2013 15:55 |  #4

When you say this:

"When I came to work today, I checked the photo on a Dell screen only to find that some of the backdrop (tshirt actually) still appears in the photo.. Even more so on my phone screen (Galaxy S2)"

What part shows up objectionably? I don't have a "professional" monitor, but all that I see "showing up" is the foreground and the part that the camera is sitting on...not the background...?

I'd say that if you really want the whole surface to disappear, getting something other than a tee-shirt would be in order. Alternatively you could "doctor" the image in software...


Tony
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HELP: Isolating subject on black drop
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