jamesp
Cave Dweller 
Member since October 2012
Posts: 36,601
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Post by jamesp on Aug 9, 2013 13:40:55 GMT -5
That's a fact Tela.
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Post by sheltie on Aug 9, 2013 14:19:12 GMT -5
Don't forget not to wear bright clothing- sometimes the stones and/or metal can pick up the color cast. Bright clothes? I'm retired!  My official uniform of the day - every day - is shorts and a T shirt, neither of which are bright by any stretch of the imagination. Holey maybe, but bright, no. |
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Post by sheltie on Aug 9, 2013 16:28:36 GMT -5
This is beginning to drive me crazy! When I get the white balance what looks to be correct (for the background), the colors are over exposed. When I get the colors of the rock correct, the WB is pink.
What should I try next?
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Post by Pat on Aug 9, 2013 16:38:57 GMT -5
Take it to Photoshop Elements, crop, and go to Levels (Command L). Click on the white eye dropper, put cursor on the background of your photo, and click. Voila!
If you don't have Photoshop Elements, there are several free photo fixit programs on the web. I suspect they have a similar function.
Good luck!
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Post by rockjunquie on Aug 9, 2013 16:43:55 GMT -5
This is beginning to drive me crazy! When I get the white balance what looks to be correct (for the background), the colors are over exposed. When I get the colors of the rock correct, the WB is pink. What should I try next? What Pat said. Get your white balance and colors right, then worry about the background. You can adjust the background with editing. I'm going through the same thing now. |
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Deleted
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Member since January 1970
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Post by Deleted on Aug 9, 2013 17:37:35 GMT -5
sheltie - you are working on two different characteristics of the image. Please allow me to explain. I know you like it simple. I'll strive for that! Getting the background correct is not white balance. Getting the white background is getting the exposure correct. A correct exposure gets blacks black and whites white. That is why I suggested taking test images with both black & white backgrounds in the frame. You did that with exposure mode +1 or whatever. Once that is solved................... Then you balance the color for the proper "color balance" based on your specific lighting set up. That is why I suggested putting a bag of skittles in the frame. The candy bag has bright colors that are easily recognizable. No sense in balancing the color until you are solid with exposure. But it should then be simple. FWIW I worked in downtown LA with a $1500 a day pro photographer - in 1986-88. Back then we did this to test new films/development solutions with a half opened roll of lifesavers, leaving the loose half roll randomly in the pic. Once he got the correct exposure/contrast in development he could change color balance of his slides. For you old timers, yes, he had an E-6 machine and liked customizing the chemistry for his "artistic look".
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Post by sheltie on Aug 9, 2013 18:19:26 GMT -5
Scott - Let's see if I have this right. First I should get my white and black background correct and then I experiment to fin the correct color balance. I'm look in my manual to see how to do that but I thought I already had. Probably not.
I've been perfectly satisfied - up until recently - with just taking a slab fresh off the blade, holding it between two fingers and shooting away. Of course, frequently the pictures weren't all that good. Still, it seemed like I had better luck when I knew nothing as compared to now knowing NEXT to nothing. I'll keep on trying although I may just eventually say the heck with it and try my wife's DSLR. I'm not there yet, but...
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Deleted
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Post by Deleted on Aug 9, 2013 18:26:00 GMT -5
You got it.
But the color balance was your complaint. re-balance and you are off flying.
I suspect your take a oily slab, wipe it clean, still wet of course and snap a pic works great. That is if you do it in sunlight. Sunlight solves almost everything.
To bring it indoors satisfies the desire to control reflections and glare, but brings the issues you are solving. A digital camera is a computer. You are learning to speak it's language to program it. Therefore, making very nice images. Once you get past this hump you will have mastered your camera!
But then it will be time to buy another! lol
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Post by deb193redux on Aug 9, 2013 18:36:17 GMT -5
after getting a used dslr, i never used my powershot again. dslr ate that nice
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Post by sheltie on Aug 9, 2013 18:36:35 GMT -5
Gottcha, thanks! I'll try again tomorrow after slabbing. After all, one has to have certain priorities you know.
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Post by Pat on Aug 17, 2013 12:35:12 GMT -5
sheltie Hope you post your further efforts!
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Post by sheltie on Aug 17, 2013 13:20:36 GMT -5
sheltie Hope you post your further efforts! In all honesty, I've gotten so frustrated in my efforts to take good pictures that I've decided to back off for now and try again later. In the meantime, I'll just continue taking pictures of my slabs as I slab them outside, still with a thin sheen of oil. At least I get a good honest clear picture that way. |
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My official uniform of the day - every day - is shorts and a T shirt, neither of which are bright by any stretch of the imagination. Holey maybe, but bright, no.
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