Microscopy Forum

Forum Help | Forum Rules | You need to be registered to post. Only your first post is moderated (spam prevention).

Please consider registering
guest

Home

Forum

Photographs and Videos

Some diatoms

Topic RSS

Some diatoms

January 29, 2012
14:12

Gekko

Member

Forum Posts: 246

Member Since:
January 16, 2012

Offline

These were found in wet soil. For the first two (bright field) images, I used a 20x objective, exposures were 1/250 and 1/2000 s at 200 ISO. For the third (dark field) I used a 40x objective, 1/8 s exposure at ISO 800.

January 29, 2012
18:23

Manfred

Member

Forum Posts: 87

Member Since:
May 20, 2011

Offline

Well done Gekko, which kind of equipment do you use…?

Regards

Manfred

January 30, 2012
12:45

Gekko

Member

Forum Posts: 246

Member Since:
January 16, 2012

Offline

Thank you very much, Manfred: I'm trying Smile . I use two old tirnocular Nikon microscopes (long story how I ended up with two) equipped with CF optics, one I can use only for bright field, the other for phase contrast, dark field, and bright field. I use a 2.5x projector lens and an Olympus E-P1 camera body with a remote shutter release. I save images as RAW files and edit them in Adobe Elements 10 editor+RAW converter.

February 9, 2012
20:03

Gekko

Member

Forum Posts: 246

Member Since:
January 16, 2012

Offline

Phase contrast, 20x objective; exposure 1/15 s at 800 ISO. Is this a diatom in the process of dividing? Many thanks for looking and setting me straight Smile .

February 21, 2012
13:32

lucmonz

Member

Forum Posts: 159

Member Since:
November 20, 2011

Offline

Hi
should be Pinnularia sp.

Luca

February 21, 2012
20:15

Gekko

Member

Forum Posts: 246

Member Since:
January 16, 2012

Offline

luca, thank you for the ID! Are you referring to the last one (that looks double)? Or to all of them?

All RSS

Forum Timezone: Europe/Vienna

Most Users Ever Online: 35

Currently Online:
10 Guest(s)

Currently Browsing this Page:
1 Guest(s)