Exquisitely executed, well done.

Steve

A dorsal view of a 3rd instar nymph of the dragonfly Aeshna palmata. This is the same nymph that was shown in http://www.photomacrography.net/forum/viewtopic.php?t=36700 Note the tubercle behind each eye. In the 3rd instar it has gained another spine. There is some speculation that it may have a sen...

I have started several threads posting images of dragonfly eggs and early instar nymphs.

I'm curious what the members and viewers here prefer with these sort of threads?

1. Post sets of images in new, separate topic, or

2. Post new images in a single, continuing thread

Thanks

Steve

Led me to search for more info. Perhaps the following describes the first discovery and investigation of this symbiosis? The North American dragonflies of the genus Aeshna ; Walker, E. M.; 1912; pages 53-54: --Chris S. Thanks for the info Chris. I have a hard cover copy of that book. I haven't had ...

By the way, your description of the setup suggests that this should be posted in macro, not micro. Was the stack shot inside the frame of a microscope, or was the setup macro except for using the objective? I can easily move the thread if appropriate. Rik, you are correct it should be in macro. I a...

A ventral view of the abdomen of a 3rd instar nymph of the dragonfly Aeshna palmata . Dragonfly nymphs breath through internal gills called the Branchial Basket by pumping water in and out through the anal opening. The pair of dark wavy lines snaking forward are the main tracheal trunks that carry O...

A closer dorsal view shot with a Mitutoyo 20x. Note the tubercles with spines behind the eyes. I have not seen them before on any other species, function unknown. http://www.photomacrography.net/forum/userpix/200_Aeshnapalmatanymph20x0211dorsday1278crop_1.jpg A ventral view showing a little better d...

BugEZ wrote:I presume these are in a Petri dish? How do wou get them/ it to hold still for a stack?

Keith, these were shot in a well slide with a coverslip. The nymph had died recently so it made a good subject.

I have not had good luck shooting stacked subjects in a petri dish.

Steve

Top is a lateral view of an egg on day 96 since oviposition. Note that the embryo has gone through katatrepsis where it flips ends so that it can hatch through the pointed end. The legs and thoracic and abdominal segments are clearly visible. Bottom is a dorsal view at day 100. This egg hatched the ...

When talking about 200mm f/4 Micro-Nikkor lenses it is useful to specify whether you mean the older Ai version or the newer AF-D one. AFAIK they are different optically. The old one is relatively small and cheap, and has a very nice tripod collar. The AF lens is larger and more expensive and is sup...

I never tried the Micro Nikkor 200 mm, but if I recall correctly it might not be one of the best for use as tube lens (it is very good in macro photography). I was looking for info on tube lenses and ran across this thread and thought I would comment about the Micro-Nikkor 200mm. It has been my pri...

Are you screwing/unscrewing objectives very often? And into what type of adapter, aluminium or brass? Aluminium is softer, and wear of anodized aluminium (e.g. blackened) produces highly abrasive aluminium oxide dust (the same kind of material used to grind and polish lenses). Also, if the adapters...

I have discovered that metal dust is being deposited on the rear element of my Mitutoyo objectives. This is very fine metal particles from screwing and unscrewing the objectives from the mounting plates. I cannot think of a good way to avoid the production of the dust and it sticks to the glass so t...

Still very nice!

A friend of mine has developed a technique for photographing dragonfly nymphs that captures the colors of living specimens very closely. First, she cleans them carefully with small paintbrushes in 95% ethanol. Rinsing in fresh ethanol until all mud, algae, etc. is removed. Then she immediately photo...