Search found 1635 matches

by Cactusdave
Thu Mar 15, 2018 8:05 am
Forum: Photography Through the Microscope
Topic: A Study in Scarlet aka There Will be Blood - images added
Replies: 17
Views: 5305

There are some concluding images to this thread here: http://www.photomacrography.net/forum/v ... 729#228729 :D
by Cactusdave
Thu Mar 15, 2018 8:03 am
Forum: Photography Through the Microscope
Topic: Section of skin injected and corroded
Replies: 6
Views: 2239

Rik- I'm fortunate in that I'm usually very good at cross eyed stereo fusion without aids. I do find these two stereo pairs particularly easy and satisfying to fuse. As an aside I have a number of other injected and corroded slides, both the 'Hett style' and the 'Topping style' . They do make very i...
by Cactusdave
Tue Mar 13, 2018 7:55 am
Forum: Equipment Exchange
Topic: Parts available for Zeiss Universal/Photomicroscope + others
Replies: 9
Views: 3473

Thanks for the excellent eyepieces Enrico. A real pleasure to use.
David
by Cactusdave
Tue Mar 13, 2018 5:26 am
Forum: Photography Through the Microscope
Topic: Section of skin injected and corroded
Replies: 6
Views: 2239

Thanks Pau, Gary and Rik. Rik - This subject seems to be particularly amenable to good stereo rendering. I'm going to shamelessly repost a stereo image from the end of my previous thread, which shows the same subject imaged with a X4 objective. A stack of 14 images with PMax, field width about 2mm. ...
by Cactusdave
Mon Mar 12, 2018 7:22 am
Forum: Photography Through the Microscope
Topic: Section of skin injected and corroded
Replies: 6
Views: 2239

Section of skin injected and corroded

A Victorian version of 'plastination' https://en.wikipedia.org/wiki/Plastination Leitz X6.3 plan fluorite objective. Stack of 11 images with Zerene PMax. Diffused incident illumination. For more details on the slide, the technique and the subject you'll need to read this thread. http://www.photomacr...
by Cactusdave
Sun Mar 11, 2018 4:57 am
Forum: Photography Through the Microscope
Topic: A Study in Scarlet aka There Will be Blood - images added
Replies: 17
Views: 5305

One thing that's apparent from that last image is that there are blood vessels much larger than capillaries lurking near the skin surface. This immediately gives a big clue as to why fairly superficial cuts can bleed so much. Something else interesting can be seen if you compare this image with the ...
by Cactusdave
Sat Mar 10, 2018 8:36 am
Forum: Photography Through the Microscope
Topic: A Study in Scarlet aka There Will be Blood - images added
Replies: 17
Views: 5305

Thanks Rik, there are images to come which I think are a lot more dramatic. :lol: This Hinton slide is worth another look at a bit higher magnification. The next image was taken with a Leitz plan fluorite X6.3 objective, same illumination technique. It is a stack of 21mages with Zerene PMax. Field w...
by Cactusdave
Sat Mar 10, 2018 7:44 am
Forum: Photography Through the Microscope
Topic: Aulacodiscus margaritaceus - stereo
Replies: 9
Views: 1645

Very impressive resolution. This looks to be about as near to SEM as you can get with a light microscope. Your first stereo pair, I thought actually was SEM for a moment when I first saw it. :shock:
by Cactusdave
Thu Mar 08, 2018 11:55 am
Forum: Photography Through the Microscope
Topic: A Study in Scarlet aka There Will be Blood - images added
Replies: 17
Views: 5305

Thanks Troels and Jacek. Troels, I can definitely promise you more things you will never have seen before. :D Same Hinton slide, same illumination, but higher magnification. Leitz X4 Planapo objective, 42 images stacked with Zerene PMax. Field width about 1.5mm. The more I look at this slide and ima...
by Cactusdave
Wed Mar 07, 2018 2:12 am
Forum: Photography Through the Microscope
Topic: A Study in Scarlet aka There Will be Blood - images added
Replies: 17
Views: 5305

Thanks Lou. It was a bit of fun to write. harisA - Field width for the first skin image about 2.5mm. Field width for the second skin image about 2mm. Field width for the third image, which I should have mentioned is skin from the palm of the hand, about 4mm. Field width of the last image about 2.7mm...
by Cactusdave
Mon Mar 05, 2018 8:19 am
Forum: Photography Through the Microscope
Topic: A Study in Scarlet aka There Will be Blood - images added
Replies: 17
Views: 5305

After that little piece of whimsy, we should take a look at some of the slides that might have featured in the imaginary soirée. This thread is about blood and the microscopic capillaries and small vessels that do the work of conveying it to satisfy the oxygen demands of the tissues. Have you ever w...
by Cactusdave
Mon Mar 05, 2018 7:34 am
Forum: Photography Through the Microscope
Topic: A Study in Scarlet aka There Will be Blood - images added
Replies: 17
Views: 5305

To get us in the mood for this slightly macabre thread, perhaps we should set the scene. Let us imagine ourselves in Victorian London, to be precise 221B Baker Street, in rooms lately taken by Afghan war veteran Dr John Watson and his new acquaintance, the somewhat eccentric 'scientific consulting d...
by Cactusdave
Mon Mar 05, 2018 7:30 am
Forum: Photography Through the Microscope
Topic: A Study in Scarlet aka There Will be Blood - images added
Replies: 17
Views: 5305

A Study in Scarlet aka There Will be Blood - images added

I have always been a great admirer of Victorian slide mounters. They really did extraordinary work, whether it was arranging diatoms and butterfly scales or making beautiful mounts of plant sections and insects still showing remarkable detail 150 years later. This was all achieved with apparatus tha...
by Cactusdave
Mon Mar 05, 2018 5:00 am
Forum: Photography Through the Microscope
Topic: When Rotifers attack, extended version
Replies: 10
Views: 1747

Very interesting viewpoint, really rather amazing. I assume predator and prey are from cultures. :D
by Cactusdave
Sun Mar 04, 2018 12:25 pm
Forum: Nature Photography -- Macro and Close-up
Topic: Hunting
Replies: 7
Views: 2979

In the last picture, a strange white worm-like think seems to be coming out of the katydid. I wonder what on earth it can be. Is it a huge nematode parasite? It's so large in proportion to the katydid.