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snail shell

Posted: Sun Oct 14, 2018 1:32 am
by Aenima
pano tiny snail shell - with 2.5x leitz - 5 or 6 panels stitched - size reduced to upload - thanks for looking :)
snailshellpano1reduced4web.jpg
snailshellpano1reduced4web.jpg (407.67 KiB) Viewed 1771 times

flickr link https://flic.kr/p/2c2bh1a

ExtraZoom link to 8000px http://extrazoom.com/image-100450.html?s=ln50x50

Re: snail shell

Posted: Sun Oct 14, 2018 2:25 am
by Bryan
Nice shot, did you also focus stack it? I’m just starting to learn about photomicrography so I would like to know ways to overcome the tiny depth of field.

Re: snail shell

Posted: Sun Oct 14, 2018 3:10 am
by Rodney
Nice image, I have a few fossil snails in stone I may post at some point in time with the stereo scope.
Rodney

Re: snail shell

Posted: Sun Oct 14, 2018 4:23 pm
by Aenima
Thank u Bryan and Rodney - Bryan, yeah i used focus stacking for the snail shell, I think it's the main method that is used for DOF, besides using camera lenses at extremely high aperture settings i don't know any other way to achieve it. :) each frame in the shell image was a stack of around 30 to 70 shots using the microscope focus knobs to move the object through the focus (point/plane?) between each shot.

Rodney, it would be awesome to see the snail fossils especially if doing a closeup :)

Re: snail shell

Posted: Mon Oct 15, 2018 5:19 am
by 75RR
Very nice! What background did you use, black flocking paper?

Re: snail shell

Posted: Mon Oct 15, 2018 6:38 pm
by Rodney
This is a small fossil snail I spoke about.
Stereo scope x10
Rodney

Re: snail shell

Posted: Tue Oct 16, 2018 1:37 pm
by Aenima
75RR wrote:Very nice! What background did you use, black flocking paper?
Thanks 75RR - I just placed the shell on a slide and removed the condenser below it, leaving it hanging in semi-darkness - then darkening the background even more when editing :)

Rodney,looks interesting and seems to have a nice texture

Re: snail shell

Posted: Tue Oct 16, 2018 6:51 pm
by Rodney
With that snail photo I had camera focus problem with any settings. The view through the eyepiece was at least 3 times better.
I used a tactical led x800 flashlight for illumination and the camera would never focus correctly. I think I will try different types of light filters and compare the results.
Looks like the fossil snail is mostly solid limestone. I found this one in a rock void or crack, so one hit with a hammer and metal chisel sent the snail flying. They usually don`t turn out this good, you generally get a lot of busted up parts unless you have all the proper equipment.
I will try several more fossils later.
We got slammed by hurricane Michael so i`m still working and will be.
Rodney

Re: snail shell

Posted: Wed Oct 17, 2018 2:31 am
by Rodney
I made a few changes and increased the magnification with this photo of the fossil snail. i`m not sure what the species is.
Rodney

Re: snail shell

Posted: Wed Oct 17, 2018 3:04 pm
by Rodney
Some interesting replies over at the fossil forum in the ID section; I listed this snail in the topic as Fossil Snail. One such reply is unknown gastropod.
Rodney

Re: snail shell

Posted: Wed Oct 17, 2018 7:27 pm
by Aenima
Rodney wrote:I made a few changes and increased the magnification with this photo of the fossil snail. i`m not sure what the species is.
Rodney
oh wow, that shot is very much improved, can see the lovely textures on the white area(s) - thanks for sharing