Alchemy Is Real! - Coin Community Forum

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Author	Replies: 9 / Views: 2,283
svslav Pillar of the Community United States 2605 Posts	Posted 12/11/2010 6:56 pm Here's an interesting effect, I accidentally made Cu-Ni coin into a gold one. Both pictures (of the same coin) were made in pretty much identical conditions with the same (artificial) lighting. First pic was made close-up with Macro setting. Then I tried again, and I pulled away to avoid the reflection of the camera in the coin's surface. Unexpectedly I got this color (I have not manipulated colors digitally on either image). Would anyone like to explain the physics (or whatever) of this phenomenon? Report this Post to the Staff

twincam_04 Valued Member United States 420 Posts	Posted 12/11/2010 6:59 pm what color shirt were you wearing? Report this Post to the Staff
svslav Pillar of the Community United States 2605 Posts	Posted 12/11/2010 7:01 pm I failed to mention I photographed the coin through the plastic of the mint packaging. Report this Post to the Staff
nohope587 Pillar of the Community United States 5953 Posts	Posted 12/11/2010 7:02 pm White balance one assumes the camera was in autoPHD mode (Push here dummy) Report this Post to the Staff
svslav Pillar of the Community United States 2605 Posts	Posted 12/11/2010 7:03 pm Quote: what color shirt were you wearing? Dark gray sweater. Report this Post to the Staff
svslav Pillar of the Community United States 2605 Posts	Posted 12/11/2010 7:04 pm Yes, it's a primitive aim-and-push-a-button camera. Report this Post to the Staff
twincam_04 Valued Member United States 420 Posts	Posted 12/11/2010 7:07 pm it just got a little confused Report this Post to the Staff
nohope587 Pillar of the Community United States 5953 Posts	Posted 12/11/2010 7:08 pm The camera tries to set the white balance before the shot based on the ambient light. My Sony always gets it wrong unless I'm using natural light most shots come out yellow under incandescent or florescent light. there should be a white balance setting in the menu somewhere with different options.. Report this Post to the Staff
Bryan1315 Bedrock of the Community United States 14454 Posts	Posted 12/11/2010 9:10 pm I agree with the white balance theory also. I used to take pictures that looked similar before I figured out how to set the white balance on my camera Report this Post to the Staff
Stunet Valued Member United States 211 Posts	Posted 12/16/2010 10:22 am White balance is a key issue. Watch that color temperature! Report this Post to the Staff
	Replies: 9 / Views: 2,283

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