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Using selective masking

Author Message
Rjmiz
383 posts
Message posted at 05/05/2007, 17:45:52 PM by Rjmiz
In a new technique I've been developing, I have been experimenting

with selective "focus" and selective "Lighting"



Basically this involves taking a minimum of 3 images all playing with DOF

by 1 shot wide open, second half way, and last the very smallest f stop.



Focus on all 3 remains the same. in this example it's the leaf and bud closest to the lens.

All 3 images are brought into one Photoshop image, so now I have 3 layers.

f22 on top

f8 middle

f4 bottom



I start by creating a Layer mask hide all on the top 2

Then I selectively reveal what I want to show on the layer below.



I do a curves adjustment on the bottom layer if I have to.



The first image is the leaves at f22 at 0.4 seconds

the second image is the final image when completed



 Dreamstime generic image 





 Image not available or id is incorrect. 
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Stuartkey
1282 posts
80
Message posted at 05/05/2007, 17:59:57 PM by Stuartkey
Really interesting effect.



How important is the middle f8 layer? Could you get basically the same effect without it, just using the f22 and f4 images?





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Rjmiz
383 posts
Message posted at 05/05/2007, 18:07:58 PM by Rjmiz
As it turned out YES I probably could have gotten away with just 2 images, howvwer the image dynamically changes when you put more information into the image. So I did use all 3 for this final result.



It also takes some pre-planning on which parts of of each image you think should be incorperated into the final.
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78
Message posted at 05/05/2007, 18:34:18 PM by Littlemacproductions
I really does add a 3-d look. Thanks for sharing... teacher.
Two brown eyes and an open mind.

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