www.photomacrography.net :: View topic - Onion mitosis test
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 
Onion mitosis test

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



Joined: 15 Jan 2012
Posts: 3640

PostPosted: Wed Jan 10, 2018 2:57 pm    Post subject: Onion mitosis test Reply with quote

I thought I would get my 100X objectives to a comparison test. For the record, I have accumulated four 100X objectives - two oil and two non-oil.
Of the non-0ilobjectives let me say this - they suck. No contrast and apparetly designed to be used without a cover slip for evaluating blood smears. One of them had virtually no working distance with a prepared slide, so the design was obviously for driectly observing blood smears.
For those of you who haven't tried an oil-immersion objective, without oil the images look like mud - soft with almost no contrast.
Here are the results on my tests with my two oil objectives.
Note - somemicroscopists put oil on the top of the substage condenser and bring the condenser up from below to make contact with the underside of the slide for even better contrast, but that means even more cleanup with Xylol (Xylene) to remove the oil.

SWIFT 100X OIL



AMSCOPE 100X OIL


_________________
Michael Reese Much FRMS EMS Bethlehem, Pennsylvania, USA
Back to top
View user's profile Send private message
carlos.uruguay



Joined: 23 Feb 2012
Posts: 4920
Location: Uruguay - Montevideo - America del Sur

PostPosted: Wed Jan 10, 2018 7:39 pm    Post subject: Reply with quote

Super!
Back to top
View user's profile Send private message Send e-mail Visit poster's website
arturoag75



Joined: 05 Feb 2010
Posts: 1581
Location: italy

PostPosted: Thu Jan 11, 2018 1:13 pm    Post subject: Reply with quote

Very nice!
_________________
www.microscopeitaly.it
Back to top
View user's profile Send private message Visit poster's website
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