|
|
|
Group: Moderators
Last Login: Today @ 7:21:03 AM
Posts: 3,879,
Visits: 5,601
|
|
| Hi Brian, Your "damifino" is a diatom frustrule with some decomposing cellular debris in it. Color fringes are caused by thick mounts and are essentially impossible to do away with if you have live wet mounts of any real thickness. You can try reducing the amount of water and adjusting to get the scope in good Koeler illumination. Also you can try adjusting the condensor while increasing opening of the substage diaphragm. Actually, what you need to do is fly me down for a few days of hands-on microscopy instruction; it his hard to learn how to do this stuff from a book. 
Cheers, Ron
"The difference in mind between man and the higher animals, great as it is, certainly is one of degree and not of kind. The love for all living creatures is the most noble attribute of man." Charles Darwin (1809-1882)
|
|
|
|
|
Group: Forum Members
Last Login: 11/19/2009 9:42:09 PM
Posts: 458,
Visits: 2,168
|
|
[quote]Ron Shimek (10/31/2009)
Hi Brian,
Your "damifino" is a diatom frustrule with some decomposing cellular debris in it.
Color fringes are caused by thick mounts and are essentially impossible to do away with if you have live wet mounts of any real thickness. You cantry reducing theamount of water and adjusting to get the scope in good Koeler illumination.Also you can try adjusting the condensorwhile increasing opening of the substage diaphragm.
Actually, what you need to do is fly me down for a few days of hands-onmicroscopy instruction; it his hard tolearn how to dothis stuff from a book. [/quote]
Ron,
Thanks for the ID, I wish we had the budget to bring you down for microscopy instruction! Until then I will have to make do with your AHABS issue 3 (I think 3 is the microscopy one) and some Nikon instructions.
More pictures soon hopefully, have a number of other things taking up my time presently.
Brian
7 years FW, 5 years SW
Education is the solution to pollution, not dilution.
|
|
|
|
|
Group: Moderators
Last Login: Today @ 7:21:03 AM
Posts: 3,879,
Visits: 5,601
|
|
| Hi Brian, Yeah, I figured. Still and all, the first couple of labs when I was teaching about inverts at marine stations were ostensibly about "protozoans." In reality, they were designed to do double duty, and give the students a basic intro to microscopy. Novice biology students get handed these instruments with no instruction - probably because most profs haven't a clue - and basically have to learn on their own. And it seldom works. Ah, well... 
Cheers, Ron
"The difference in mind between man and the higher animals, great as it is, certainly is one of degree and not of kind. The love for all living creatures is the most noble attribute of man." Charles Darwin (1809-1882)
|
|
|
|