www.photomacrography.net :: View topic - U + A
www.photomacrography.net Forum Index
An online community dedicated to the practices of photomacrography, close-up and macro photography, and photomicrography.
Photomacrography Front Page Amateurmicrography Front Page
Old Forums/Galleries
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 
U + A

 
Post new topic   Reply to topic    www.photomacrography.net Forum Index -> Photography Through the Microscope
View previous topic :: View next topic  
Author Message
Sumguy01



Joined: 28 Jan 2013
Posts: 1356
Location: Ketchikan Alaska USA
PostPosted: Tue Mar 26, 2019 9:01 pm    Post subject: U + A Reply with quote
Urea + Alum dissolved in vinegar, fast dry in oven, no cover glass, 4x and 10x obj. polarized with retarder, # 4 is Zerene Stack,






Back to top
View user's profile Send private message
Jacek



Joined: 02 Oct 2011
Posts: 5339
Location: Poland
PostPosted: Wed Mar 27, 2019 1:42 pm    Post subject: Reply with quote
Nice Very Happy
_________________
https://photos.app.goo.gl/MV9IynUtBdaKkVj53
Back to top
View user's profile Send private message Send e-mail
grgh



Joined: 09 Mar 2013
Posts: 256
Location: Lancashire. UK
PostPosted: Wed Mar 27, 2019 4:06 pm    Post subject: Reply with quote
kaleidoscope springs to mind, beautiful colours.
_________________
used to do astronomy.
and photography.
Zeiss Universal Phase contrast.
Zeiss PMII
Back to top
View user's profile Send private message Send e-mail
Robert Berdan



Joined: 18 Oct 2017
Posts: 150
Location: Calgary
PostPosted: Thu Mar 28, 2019 3:18 pm    Post subject: Nice crystals Reply with quote
Nice crystals. I have played with Urea as melts and from solutions and my samples looked very different. It is amazing how small changes to the solvent, drying condition or additions to the solution can change the shape of the crystals. Even in a single batch I see a lot of variation.

Nice photos.
RB
Back to top
View user's profile Send private message Send e-mail Visit poster's website
Sumguy01



Joined: 28 Jan 2013
Posts: 1356
Location: Ketchikan Alaska USA
PostPosted: Thu Mar 28, 2019 11:04 pm    Post subject: Reply with quote
Very Happy Thanks for the nice comments.
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    www.photomacrography.net Forum Index -> Photography Through the Microscope All times are GMT - 7 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group