Search found 378 matches

by micro_pix
Sat Nov 21, 2020 11:49 am
Forum: Administrator's Appreciation Gallery...Photography Through the Microscope
Topic: Dioptase on Calcite
Replies: 7
Views: 3386

Re: Dioptase on Calcite

Excellent! It’s a great colour. Do you do all of the cutting and polishing yourself?

Dave
by micro_pix
Tue Nov 17, 2020 11:46 am
Forum: Photography Through the Microscope
Topic: Fun with acetaminophen 02
Replies: 3
Views: 1241

Re: Fun with acetaminophen 02

Very nice!

Dave
by micro_pix
Sun Nov 15, 2020 9:53 am
Forum: Photography Through the Microscope
Topic: Polypodium sporangia fluorescence
Replies: 15
Views: 2379

Re: Polypodium sporangia fluorescence

Did you show this in a previous post Lou? If you did could you post a link, I’d like to see how you have set it up.

Dave
by micro_pix
Fri Nov 13, 2020 5:52 am
Forum: Photography Through the Microscope
Topic: Polypodium sporangia fluorescence
Replies: 15
Views: 2379

Re: Polypodium sporangia fluorescence

I have occasionally used a tiny amount Decon90 (a strong surfactant) when photographing fungal structures in water under a coverslip and that helped avoid bubbles but I haven’t used it lately. A very unscientific observation I know but a drop of de-ionised water does seem to spread out and wet the s...
by micro_pix
Fri Nov 13, 2020 2:12 am
Forum: Photography Through the Microscope
Topic: Polypodium sporangia fluorescence
Replies: 15
Views: 2379

Re: Polypodium sporangia fluorescence

Lou Jost wrote:
Thu Nov 12, 2020 4:37 pm
Thanks, maybe that's the key.
Possibly the de-ionised water has a lower surface tension than tap water because of a lack of impurities, it certainly seems to flow more freely on a surface, which would help reduce bubbles.

Dave
by micro_pix
Thu Nov 12, 2020 3:27 pm
Forum: Photography Through the Microscope
Topic: Polypodium sporangia fluorescence
Replies: 15
Views: 2379

Re: Polypodium sporangia fluorescence

Great use of the water objective. How did you avoid air bubbles? I tried this once but the bubbles ruined it. It’s the first time I’ve used a water objective so I didn’t have any experience. I must have been lucky; I just put it in a petri dish, weighted the ends of the leaf with a couple of steel ...
by micro_pix
Thu Nov 12, 2020 12:55 pm
Forum: Photography Through the Microscope
Topic: Polypodium sporangia fluorescence
Replies: 15
Views: 2379

Re: Polypoium sporangia fluorescence.

Pau wrote:
Thu Nov 12, 2020 12:41 pm
Excellent pictures of one of my favorite subjects :D
What UV source and filters did you used?
Thanks Pau. I used my infinite Olympus BH2 with the standard mercury lamp and UV dichroic mirror - no extra barrier filter. The objective was an Olympus UMPlanFL 10x W

Dave
by micro_pix
Thu Nov 12, 2020 11:31 am
Forum: Photography Through the Microscope
Topic: Polypodium sporangia fluorescence
Replies: 15
Views: 2379

Polypodium sporangia fluorescence

These are the sporangia of the fern Polypodium vulgare auto-fluorescing under UV. I immersed the leaf in water and used an Olympus 10x water dipping objective. I liked the way that the spores are visible inside the sporangia.

Dave
Polypodium vulgare sporangia
Polypodium vulgare sporangia
Polypodium vulgare sporangia
Polypodium vulgare sporangia
by micro_pix
Thu Nov 12, 2020 11:22 am
Forum: Photography Through the Microscope
Topic: Euglenoids
Replies: 5
Views: 1888

Re: Euglenoids

Nicely captured.
by micro_pix
Wed Oct 28, 2020 1:45 pm
Forum: Photography Through the Microscope
Topic: Dunaliella salina
Replies: 5
Views: 1508

Re: Dunaliella salina

Interesting and a great set of images, I love the 4th image.

Dave
by micro_pix
Wed Oct 28, 2020 1:33 pm
Forum: Photography Through the Microscope
Topic: Porcupine quill
Replies: 8
Views: 1667

Re: Porcupine quill

Nicely done! I have a few porcupine quills collected on a walk in a wooded area near the small town of Underberg in South Africa, I never saw the porcupine though. I going to have to slice one up now.

Dave
by micro_pix
Sun Oct 11, 2020 12:15 pm
Forum: Photography Through the Microscope
Topic: Amoeba proteus
Replies: 6
Views: 2119

Re: Amoeba proteus

Wonderful images and I loved the video.

Dave
by micro_pix
Tue Oct 06, 2020 6:31 am
Forum: Photography Through the Microscope
Topic: Algal bloom under the microscope
Replies: 11
Views: 2157

Re: Algal bloom under the microscope

Amazing images! Absolutely stunning!

Dave
by micro_pix
Mon Sep 28, 2020 3:25 am
Forum: Photography Through the Microscope
Topic: Rotifer for ID please
Replies: 2
Views: 1109

Re: Rotifer for ID please

You don’t give a scale but is it possible that this is the skeletal remains of the head of a larvae, that looks like the remains of a mandible on the left and the overall shape and construction looks similar.

Dave
by micro_pix
Sat Sep 26, 2020 8:39 am
Forum: Photography Through the Microscope
Topic: Foram and Ostracod Shells
Replies: 5
Views: 1802

Re: Foram and Ostracod Shells

Thanks Daniel.