Search found 947 matches

by hkv
Tue Oct 30, 2018 8:07 am
Forum: Pictures and Videos
Topic: Wetland Cillates
Replies: 13
Views: 2250

Re: Wetland Cillates

Looks like Paramecium for sure! Great shots! The first one seems a bit stress as it is about to burst. Maybe because of pressure from the cover glass.
by hkv
Tue Oct 30, 2018 7:24 am
Forum: Pictures and Videos
Topic: Diatoms
Replies: 6
Views: 1463

Diatoms

I was out with the boat collecting samples from a local lake and was surprised to get a huge amount of diatoms. Many which I have never encountered before. I dragged it after the boat for about 5 minutes just below the surface. My daughter was more interested to use the collecting device as a hat. I...
by hkv
Tue Oct 30, 2018 7:10 am
Forum: Pictures and Videos
Topic: Cyanobacteria - Gloeotrichia
Replies: 17
Views: 3963

Re: Cyanobacteria - Gloeotrichia

Grahame wrote:Neat images.
Have you tried a cross-eye stereo of any of them ?
No, I have not tried that. I have to struggle to see cross-eye stereo at all and mostly fail in doing so... Therefore, I never enable that feature when stacking. Would be neat to see these in 3D for sure.
by hkv
Fri Oct 26, 2018 7:20 am
Forum: Pictures and Videos
Topic: Cyanobacteria - Gloeotrichia
Replies: 17
Views: 3963

Re: Cyanobacteria - Gloeotrichia

Thank you all for your comments! The darkfield image is also one of my favourite.
by hkv
Thu Oct 25, 2018 8:04 pm
Forum: Pictures and Videos
Topic: Cyanobacteria - Gloeotrichia
Replies: 17
Views: 3963

Cyanobacteria - Gloeotrichia

Long time since I posted in this forum so I thought I would share a few images. I was out boating in august and noticed some small "algae" floating on the surface of the water. It was like small hairy balls and I took a sample in a beer can to check them out. To my surprise, they were not algae at a...
by hkv
Fri Sep 28, 2018 8:24 pm
Forum: Identification help
Topic: What is this organism?
Replies: 9
Views: 2534

Re: What is this organism?

The flagella are also clearly visible using DIC.

Image
Euglena by Håkan Kvarnström, on Flickr
by hkv
Thu Sep 27, 2018 7:53 pm
Forum: Identification help
Topic: What is this organism?
Replies: 9
Views: 2534

Re: What is this organism?

Looks like Euglena. Nice shot!
by hkv
Sat Sep 22, 2018 8:35 am
Forum: Pictures and Videos
Topic: Cristaux paracétamol
Replies: 6
Views: 1041

Re: Cristaux paracétamol

Very nice image!
by hkv
Thu Aug 30, 2018 7:11 am
Forum: Pictures and Videos
Topic: Marine Diatom (Live)
Replies: 16
Views: 2153

Re: Marine Diatom (Live)

Beautiful!
by hkv
Thu Aug 30, 2018 7:09 am
Forum: Microscopes and optics
Topic: Magnification Changer
Replies: 7
Views: 2291

Re: Magnification Changer

I would keep it. I use mine all the time especially when shooting video.
by hkv
Thu Aug 30, 2018 7:06 am
Forum: Pictures and Videos
Topic: Cristaux de sucre
Replies: 12
Views: 1965

Re: Cristaux de sucre

Very nice!
by hkv
Sun Jul 01, 2018 7:36 am
Forum: Specimens, samples and slides
Topic: Best Practices for Re-Using Slides and Coverslips
Replies: 7
Views: 3874

Re: Best Practices for Re-Using Slides and Coverslips

I clean my slides but throw away all cover glass after use. I have a box with glass to throw away and a box with glass to be cleaned. I never use cleaning fluid. Just rinse under tap water and wipe it off with a fiber cloth or my T-shirt. I only try to use high quality glass. All on ebay in bulk pac...
by hkv
Sun Jul 01, 2018 7:24 am
Forum: Pictures and Videos
Topic: Feuille de Tilleul
Replies: 4
Views: 1020

Re: Feuille de Tilleul

Beautiful!
by hkv
Sun Jun 17, 2018 6:38 am
Forum: Pictures and Videos
Topic: Ghost Nauplius (Marine)
Replies: 7
Views: 1492

Re: Ghost Nauplius (Marine)

Scary! And a beautiful DIC!
by hkv
Thu May 31, 2018 10:48 pm
Forum: Pictures and Videos
Topic: Haematococcus pluvialis
Replies: 15
Views: 2733

Re: Haematococcus pluvialis

Fantastic images! Thanks for sharing! I need to look for these!
by hkv
Thu May 31, 2018 10:47 pm
Forum: Pictures and Videos
Topic: aile de Bourdon
Replies: 5
Views: 800

Re: aile de Bourdon

These are very good! I like the last one the best! Excellent resolution and clarity!
by hkv
Thu May 31, 2018 10:46 pm
Forum: Pictures and Videos
Topic: Two marine beasties
Replies: 7
Views: 1180

Re: Two marine beasties

Superb images!
by hkv
Fri May 18, 2018 7:30 pm
Forum: Pictures and Videos
Topic: Red Algae - Polysiphonia
Replies: 6
Views: 971

Re: Red Algae - Polysiphonia

Thank you all for you comments! Yes, I agree. Darkfield is a fantastic technique for beautiful images. I just bought a new oil darkfield condenser that will allow me to go all the way up to 100X at NA 1.4. Before I could only do 0.9.
by hkv
Wed May 16, 2018 8:03 pm
Forum: Pictures and Videos
Topic: Red Algae - Polysiphonia
Replies: 6
Views: 971

Red Algae - Polysiphonia

I have been growing red algae in a salt water sample jar for some time. Grows in small balls of red threads. This is Polysiphonia at various magnifications and illumination techniques. Darkfield, 10X: https://farm1.staticflickr.com/959/41416375924_757aee21b3_b.jpg Polysiponia by Håkan Kvarnström , o...
by hkv
Wed May 16, 2018 7:57 pm
Forum: Pictures and Videos
Topic: Cosmarium
Replies: 8
Views: 1380

Re: Cosmarium

Thanks all! Some more coming up shortly
by hkv
Sun May 06, 2018 2:19 pm
Forum: Pictures and Videos
Topic: Paramecium in polarised light
Replies: 7
Views: 1444

Re: Paramecium in polarised light

Thank you all! Yes, agree about the bumper cars! Paramecium have a collide-backoff-new direction strategy. Just like bumper cars at a tivoli.
by hkv
Sat May 05, 2018 8:11 pm
Forum: Pictures and Videos
Topic: Duplo Illuminata
Replies: 9
Views: 1453

Re: Duplo Illuminata

Thank you all for your comments! Hi Håkan, great images, thank you for posting! I like the second image best - is this a blend of bright field and dark field? Bob No, it is reflected brightfield meaning external light source and a metallurgical objective. The other technique was fluorescent light wh...
by hkv
Sat May 05, 2018 4:19 pm
Forum: Pictures and Videos
Topic: Paramecium in polarised light
Replies: 7
Views: 1444

Paramecium in polarised light

I shot this Paramecium in polarised light. Individually picked by a micro pipette to clean water for rinsing and then individually picked again and put in a clear water drop to remove all possible debris. 10X and 20X objectives was used. The last half was filmed in 120 frames per second to get a "sl...
by hkv
Sat May 05, 2018 3:18 pm
Forum: Pictures and Videos
Topic: Duplo Illuminata
Replies: 9
Views: 1453

Duplo Illuminata

Inspired by the photographer Stephen Wilkes (Instagram: @stephenwilkes) “Day to Night” images where both night and day are captured in a single image, I decided to capture microscopic beauty using dual illumination techniques and combine them into a single image. Some images in this serie, which I c...
by hkv
Sat May 05, 2018 3:07 pm
Forum: Pictures and Videos
Topic: Citric acid.
Replies: 13
Views: 1955

Re: Citric acid.

WOW! almost like a carpet of silk!
by hkv
Sun Apr 22, 2018 6:23 am
Forum: Pictures and Videos
Topic: another Diatom
Replies: 11
Views: 1757

Re: another Diatom

Really nice work! Details and lightning are stunning!
by hkv
Sun Apr 22, 2018 6:12 am
Forum: Pictures and Videos
Topic: 4 Rectangles and a triangle (diatoms)
Replies: 10
Views: 1456

Re: 4 Rectangles and a triangle (diatoms)

Excellent details! I like the Tabellaria the most.
by hkv
Sun Apr 22, 2018 6:09 am
Forum: Pictures and Videos
Topic: Closterium
Replies: 7
Views: 1019

Re: Closterium

Very nice work! Impressive size!
by hkv
Sun Apr 15, 2018 8:10 am
Forum: Pictures and Videos
Topic: Aigrettes de pissenlit
Replies: 5
Views: 838

Re: Aigrettes de pissenlit

Very beautiful Vaselle!
by hkv
Sun Apr 15, 2018 8:08 am
Forum: Pictures and Videos
Topic: Ostracod
Replies: 7
Views: 1328

Re: Ostracod

Very nice images! I find these very difficult to shoot. You have managed very well though!