What Caused the Black Edge?
Aug 11, 2019 09:17:11 #
I was wading in the surf taking shots of our grandsons riding boogie boards. Our 8-year old began standing up on his board attempting to "surf"... and was getting pretty good at it. I had to make sure I did not get knocked over by the frequent waves so could not always set up for best composition.
He came pretty close to me as I shot this one. The sun was bright, high and slightly behind him.
I am completely puzzled by the black edge at the rear of his left arm. His arm was out (for balance) and fully exposed to the sun.
What could have caused the black edge? One of my thoughts is motion blur.
P.S. I like the artsy effect of being too close.
He came pretty close to me as I shot this one. The sun was bright, high and slightly behind him.
I am completely puzzled by the black edge at the rear of his left arm. His arm was out (for balance) and fully exposed to the sun.
What could have caused the black edge? One of my thoughts is motion blur.
P.S. I like the artsy effect of being too close.
Aug 11, 2019 09:21:56 #
Could it have been water reflecting or refracting the light? The sun was at his back so it should have been in full sun.
Aug 11, 2019 09:27:41 #
Did you sharpen? Sometimes setting the radius too large can give a dark halo at an edge. You could try reducing the radius.
Aug 11, 2019 09:41:47 #
tradio wrote:
Could it have been water reflecting or refracting the light? The sun was at his back so it should have been in full sun.
I'll have to think about that one. The water around him was churning white so would have reflected from below him also. Thanks for the idea.
Aug 11, 2019 09:43:03 #
bleirer wrote:
Did you sharpen? Sometimes setting the radius too large can give a dark halo at an edge. You could try reducing the radius.
Thanks for commenting. The non-PP'd RAW file clearly shows the black edge also.
Aug 11, 2019 09:57:50 #
davefales wrote:
I was wading in the surf taking shots of our grand... (show quote)
If the sun is slightly behind, is it possible the black edge along his arm a shadow from his body?
Bill
Aug 11, 2019 10:37:15 #
newtoyou wrote:
If the sun is slightly behind, is it possible the black edge along his arm a shadow from his body?
Bill
Bill
The shadow on the boogie board shows his arm was directly in the sun. Thanks for the suggestion.
Aug 11, 2019 12:14:09 #
davefales wrote:
The shadow on the boogie board shows his arm was directly in the sun. Thanks for the suggestion.
I missed that. Thanks for the challenge.
Bill
Aug 11, 2019 12:58:48 #
davefales wrote:
I'll have to think about that one. The water around him was churning white so would have reflected from below him also. Thanks for the idea.
I was thinking more of a stream of water running down his arm causing the anomaly.
Aug 11, 2019 13:28:44 #
If you pixel peep that could possibly be chromatic aberration elsewhere also, under his ring finger, under his chin, in the water. Just a possibility to try lens correction for CA and see if it reduces. Otherwise it is fixable, patch tool or healing brush with the pic zoomed in a lot.
Aug 11, 2019 14:36:49 #
bleirer wrote:
If you pixel peep that could possibly be chromatic aberration elsewhere also, under his ring finger, under his chin, in the water. Just a possibility to try lens correction for CA and see if it reduces. Otherwise it is fixable, patch tool or healing brush with the pic zoomed in a lot.
I thought of CA and tried to correct it with the RAW file, but that did not improve it. I have fixed it using the tools. But I'm still curious about the cause.
Aug 11, 2019 19:36:27 #
Either shadow from his body or a reflection of that dark blue outfit onto the back of his arm that just ever so slightly shows on the curve of the arm.
Aug 11, 2019 21:21:20 #
robertjerl wrote:
Either shadow from his body or a reflection of that dark blue outfit onto the back of his arm that just ever so slightly shows on the curve of the arm.
I like the reflection explanation. His arm was wet. Thanks, Robert.
Aug 12, 2019 07:53:02 #
Chadp
Loc: Virginia Beach
My first thought was reflection of the dark bathing suit as others have also suggested. His arm being wet would make it more reflective.
Aug 12, 2019 08:53:08 #
Wonderful image! My guess (and it is completely a guess) is that the dark line is from the colors he is wearing being picked up in the thin layer of water on his arm.
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