Search found 616 matches

by WalterD
Tue May 05, 2020 10:27 pm
Forum: Photography Through the Microscope
Topic: Midge wings
Replies: 4
Views: 1170

Excellent set, Charles. Wonderful & colorful details.
:smt038
by WalterD
Tue May 05, 2020 10:22 pm
Forum: Photography Through the Microscope
Topic: Diatoms in Circular Oblique Light Update 06/05
Replies: 25
Views: 4031

Good to hear that, Robert. Now what resolution did I achieve? The angular resolution formula is helpfull to assess what could be expected . (https://en.wikipedia.org/wiki/Angular_resolution) http://www.photomacrography.net/forum/userpix/5187_foto_1_6.jpg The partially open iris objective has an Na o...
by WalterD
Tue May 05, 2020 10:10 pm
Forum: Photography Through the Microscope
Topic: The Phantom midge Chaoborus crystallinus
Replies: 8
Views: 1309

Great set, fantastic colour and details.
:smt038
I wonder what would other water organisms look like with same lighting method?
by WalterD
Tue May 05, 2020 10:07 pm
Forum: Photography Through the Microscope
Topic: Wolf Spider Head 10:1
Replies: 6
Views: 1342

Well done, nice "portrait".
Thanks for sharing!

Regards,

Walter
by WalterD
Tue May 05, 2020 10:04 pm
Forum: Photography Through the Microscope
Topic: Pine needle c.s.
Replies: 4
Views: 1120

Very interesting, nice section. Thanks for sharing.
:D

Regards,

Walter
by WalterD
Tue May 05, 2020 10:02 pm
Forum: Photography Through the Microscope
Topic: Mosquito wing details
Replies: 11
Views: 1740

Very nice, Pau; all the tiny hairs are very detailed. And I like the black and white too.

Regards,

Walter
by WalterD
Tue May 05, 2020 9:58 pm
Forum: Photography Through the Microscope
Topic: Corticulous fruit bodies, myxomycetes
Replies: 2
Views: 867

Thanks for sharing, Ken! Getting curious what it looks like at higher magnification. :D

regards,

Walter
by WalterD
Sun May 03, 2020 1:59 am
Forum: Photography Through the Microscope
Topic: Diatoms in Circular Oblique Light Update 06/05
Replies: 25
Views: 4031

... so your objective has a higher NA than the low NA of your dark field condenser? Exactly what objective is it if you don't mind? James, indeed the objective has a considerable higher Na than the condenser. The objective is, to be more precise, a100x magnification Leitz PL Fluotar oil immersion o...
by WalterD
Sun May 03, 2020 12:29 am
Forum: Photography Through the Microscope
Topic: Diatoms in Circular Oblique Light Update 06/05
Replies: 25
Views: 4031

Dear all, thanks again for the kind remarks! @James: The 100x objective has got an iris diaphragm which was partially closed. According the specs the Na with full open iris diaphragm is 1.32, closed 0.6. In this setup it is more open than closed. @Charles: Correct, a dry 0,8 Na darkfield condenser i...
by WalterD
Thu Apr 30, 2020 10:31 pm
Forum: Photography Through the Microscope
Topic: Diatoms in Circular Oblique Light Update 06/05
Replies: 25
Views: 4031

You're welcome, Lou! The sensor of the camera is the CMOS type APS-C sized, which is "medium frame". The Periplan 6,3x 30mm eyepiece in this setup results in a large field number, FN28. The Objective is a 100x/ 1.32-0.6 iris immersion objective. Below 2 pictures of the setup including the led light....
by WalterD
Wed Apr 29, 2020 11:25 pm
Forum: Photography Through the Microscope
Topic: Diatoms in Circular Oblique Light Update 06/05
Replies: 25
Views: 4031

Thanks all for the kind remarks. @Macro_Cosmos: Yes I was glad to have the opportunity to buy this slide from Klaus Kemp, who's been a master in diatom preparation for decades. And I don't know anybody else offering commercial type slides this good with this variety of types. @ Lou: The fiddling aro...
by WalterD
Wed Apr 29, 2020 11:19 pm
Forum: Photography Through the Microscope
Topic: Dragonfly
Replies: 1
Views: 875

Interesting detail, thanks for sharing.
:D

Regards,

Walter
by WalterD
Wed Apr 29, 2020 11:18 pm
Forum: Photography Through the Microscope
Topic: Ciliated: Amphileptus procerus
Replies: 4
Views: 1135

Very nice clip, thanks for sharing! It looks like it's a bit limited in its movement trapped between the glass?

Regards,
Walter
by WalterD
Wed Apr 29, 2020 11:15 pm
Forum: Photography Through the Microscope
Topic: Navicula diatom video
Replies: 4
Views: 992

Carlos, good to see the diatom alive and moving in this clip, very nice.
Thanks for sharing :D

Regards,
Walter
by WalterD
Wed Apr 29, 2020 11:11 pm
Forum: Photography Through the Microscope
Topic: Freshwater mites
Replies: 14
Views: 2052

Beautiful set, well done! What objective did you use?

Regards,

Walter