sheltie
freely admits to licking rocks
Member since January 2012
Posts: 982
|
Post by sheltie on Nov 23, 2013 13:59:53 GMT -5
|
|
Deleted
Deleted Member
Member since January 1970
Posts: 0
|
Post by Deleted on Nov 23, 2013 15:03:35 GMT -5
I am afraid I am of no help on the ID's. Maybe I can move you farther forward in your photography.
Your colors seem very warm. Are you using an incandescent light source? You may need to balance the color better, perhaps their is an in camera setting for the light source you use.
|
|
sheltie
freely admits to licking rocks
Member since January 2012
Posts: 982
|
Post by sheltie on Nov 23, 2013 17:30:06 GMT -5
I am afraid I am of no help on the ID's. Maybe I can move you farther forward in your photography. Your colors seem very warm. Are you using an incandescent light source? You may need to balance the color better, perhaps their is an in camera setting for the light source you use. Any help with the camera would be appreciated. I'm using florescent bulbs. one on the top and one on either side of the light box which is framed with a light weight sheet like material. The white balance was set on normal when using the black background. When I tried it on an "indoor" (there was a choice of normal, indoor and outdoor) setting and with a white background, the background liked dingey (a little grayish). The camera setting is "auto". I agree that the colors are warm but that is sooooo much better than the faded pix I used to take. Now if you could just guide me toward the right way to adjust the colors I'll be all set!
|
|
Deleted
Deleted Member
Member since January 1970
Posts: 0
|
Post by Deleted on Nov 23, 2013 18:12:48 GMT -5
progress is excellent. Just trying to make you a pro.
What camera are you using?
|
|
Deleted
Deleted Member
Member since January 1970
Posts: 0
|
Post by Deleted on Nov 23, 2013 18:18:46 GMT -5
The death plate with all the little squiggles is turritella (sp) and looks like it is a piece from Wyoming. Jim
|
|
victor1941
fully equipped rock polisher
Member since November 2011
Posts: 1,979
|
Post by victor1941 on Nov 23, 2013 21:44:19 GMT -5
I think that the slab below the turritella is a stromatolite or petrified algae. I shaped some of this material last week and noticed a definite odor.
|
|
sheltie
freely admits to licking rocks
Member since January 2012
Posts: 982
|
Post by sheltie on Nov 24, 2013 9:01:28 GMT -5
progress is excellent. Just trying to make you a pro. What camera are you using? It's a Sony DSC S30 Cybershot. Not the greatest, but a marked improvement over my Powershot. I wanted to use my wife's Canon a350 but for some reason the lens(20-70mm)wouldn't focus in on the slab well. We haven't used it is some time so we are going to work on it again today. In the meantime I'll work with the Sony.
|
|
|
Post by Rockoonz on Nov 24, 2013 11:21:59 GMT -5
2 and 4 are a brecchiated jasp agate like stone creek. 7 is a variety of wonderstone. 11 is a dense green moss agate, could be from anywhere. Last one looks to me a type of lace agate, maybe Mexican? but I've seen stuff like it collected in creek beds not far from me.
Lee
|
|
sheltie
freely admits to licking rocks
Member since January 2012
Posts: 982
|
Post by sheltie on Nov 24, 2013 12:02:39 GMT -5
I just wanted to thank everyone for their contributions. Keep them up and my pile of "unknowns" will continue to shrink.
|
|
Deleted
Deleted Member
Member since January 1970
Posts: 0
|
Post by Deleted on Nov 24, 2013 12:56:52 GMT -5
progress is excellent. Just trying to make you a pro. What camera are you using? It's a Sony DSC S30 Cybershot. Not the greatest, but a marked improvement over my Powershot. I wanted to use my wife's Canon a350 but for some reason the lens(20-70mm)wouldn't focus in on the slab well. We haven't used it is some time so we are going to work on it again today. In the meantime I'll work with the Sony. Sorry for the parallel discussion. I googled your camera for a white balance tute. That camera cannot be balanced. I'd try your wifes A350 and do manual focus. Also, make sure you out outside that lens' minimum focal distance. It's probably printed on the lens. Congrats on your progress!!
|
|
victor1941
fully equipped rock polisher
Member since November 2011
Posts: 1,979
|
Post by victor1941 on Nov 24, 2013 21:42:15 GMT -5
I believe the slab above the lace is a sagenite.
|
|
|
Post by Tonyterner on Nov 30, 2013 7:54:19 GMT -5
16 appears to be mariposite although its a bit dark green for that material.
|
|
GeorgeStoneStore
starting to spend too much on rocks
Member since November 2011
Posts: 168
|
Post by GeorgeStoneStore on Dec 1, 2013 1:53:38 GMT -5
progress is excellent. Just trying to make you a pro. What camera are you using? It's a Sony DSC S30 Cybershot. Not the greatest, but a marked improvement over my Powershot. I wanted to use my wife's Canon a350 but for some reason the lens(20-70mm)wouldn't focus in on the slab well. We haven't used it is some time so we are going to work on it again today. In the meantime I'll work with the Sony. Hi Colors perfect if: Use auto-white balance (or you can manually set) -IMPORTANT! use 2 or 3 pieces of 13W 5600 or 6500 K color temperature lamp 500-800 Lumens ( 3x 500 Lumens = 1500 lumens - 25cmx25cm surface (light box space) = 24000 LUX more than enough ... -use a light-box. example: LIGHT BOX Example: compact fluorescent lamp Philips Lighting
|
|