Search found 2666 matches

by NikonUser
Wed Jul 28, 2021 4:28 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Drosophila
Replies: 4
Views: 136

Re: Drosophila ?

Looks OK for Drosophila; antenna described as: arista plumose with dorsal and ventral rays, usually more than 2 ventrally.
by NikonUser
Sat Jul 17, 2021 8:06 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Small Fly Portrait
Replies: 5
Views: 139

Re: Drosophila Portrait

Drosophila have distinctive antennae, your fly's doesn't match !
by NikonUser
Sat Jul 17, 2021 4:16 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Poisonous Beetle
Replies: 2
Views: 184

Poisonous Beetle

One almost universal feature of beetles is that their forewings are hardened elytra that form a protective covering for much of the body; they are of no use for flight. However, one family, the Lycidae, have soft forewings. These beetles are conspicuously coloured red or black and red. The colouring...
by NikonUser
Fri Jul 09, 2021 10:23 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Insect - double mounting
Replies: 4
Views: 401

Insect - double mounting

One way to hold and orientate a bug for photography is a two-pin method. Bug is stuck to a fine insect pin (the best insect pins have a nylon head, see image. To make this 'headless' simply burn it off with a small flame (match or lighter)). Mount bug on this pin with Bondic. This pin with mounted b...
by NikonUser
Mon Jun 28, 2021 11:50 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Insect mounting
Replies: 3
Views: 383

Insect mounting

A simple way to prepare an insect for photographing is to mount it on a very fine pin. Standard practice for permanent curation is to pass the pin through the thorax; this detracts from a final photo. A 'photographic mount' is easily made simply by gluing the insect to a pin. Where to glue the insec...
by NikonUser
Mon Jun 28, 2021 7:16 am
Forum: Nature Photography -- Macro and Close-up
Topic: Not caterpillars. Wasps!
Replies: 11
Views: 434

Re: Not caterpillars. Wasps!

UV-cured resin was mentioned.
A very useful permanent-mounting resin, available in Canada, is "Bondic". Comes in an applicator with a 'nozzel' about the diam. of a small hypodermic.
I use it, works well! Not cheap but one uses so little.
by NikonUser
Thu Jun 24, 2021 8:45 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Compound eyes of Hybomitra sp. male
Replies: 5
Views: 250

Re: Compound eyes of Tabanus

Tabanids in the SubFamily: Tabaninae include the genera Tabanus and Hybomitra.
Ocelli are absent in this SF, or at most vestigial.
What you are seeing in your male is called an 'ocellar tubercle'. A structure not seen in the genus Tabanus.
Your fly is a male Hybomitra sp.
by NikonUser
Fri Jun 11, 2021 8:10 am
Forum: General Discussion Forum and Community Announcements
Topic: use Bing to search PMN
Replies: 5
Views: 215

Re: use Bing to search PMN

make this sticky!
by NikonUser
Sat Jun 05, 2021 4:56 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Tongue of the bumblebee
Replies: 13
Views: 428

Re: Tongue of the bumblebee

Superb photos. Not sure about the entomological implication. The hairy tongue is for nectar Bees collect pollen on their hairy bodies and legs, they then clean themselves with legs and transfer the pollen to pollen-baskets on the hind legs. (sorry to be so pedantic, consequence of years of universit...
by NikonUser
Fri May 28, 2021 11:31 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Hand sectioning; plants
Replies: 23
Views: 4416

Re: Hand sectioning; plants

Thanks. Stained with Fast Green and Safranin-O Perhaps a better method for sectioning: https://pages.stolaf.edu/wp-content/uploads/sites/803/2017/04/Giannini_OPN_Microtome_Manual_20170415.pdf OR: The OPN Microtome: An Inexpensive, Open Source Hand-Held Mini Microtome John Giannini,* Associate Profes...
by NikonUser
Wed Apr 14, 2021 11:12 am
Forum: Equipment Exchange
Topic: Oly SPlan Apo 100x oil
Replies: 0
Views: 428

Oly SPlan Apo 100x oil

Tested today with mosquito wing tip- BHS +1.25x + 2.5x, Nikon D810, full frame image. Inserted is part of a micrometer slide taken at same time, divisions = 0.01 mm Obj Serial # 105615 I will gladly test this objective with a potential buyer's test slide (diatom?). This wing is the best I have. $600...
by NikonUser
Mon Apr 12, 2021 3:03 am
Forum: Photography Through the Microscope
Topic: When is a clam not a clam?
Replies: 5
Views: 505

Re: When is a clam not a clam?

Dave, Perhaps your shells were too worn. My FW shells were from very fresh, some alive, specimens. My text says the shells are composed of a low-magnesium calcite exoskeleton (carapace) with an outer covering, cuticle, of chitin. My guess is that it is the chitin that 'responds' to polarized light. ...
by NikonUser
Thu Apr 08, 2021 2:00 pm
Forum: Equipment Discussions
Topic: Nikon MPlan 60x ELWD NA 0.70 objective
Replies: 0
Views: 405

Nikon MPlan 60x ELWD NA 0.70 objective

I used this objective to photograph the shell of a Ostracod, last image: http://www.photomacrography.net/forum/viewtopic.php?f=27&t=43360 The image was poor. Thinking that maybe the poor result was more the nature of the subject than the quality of the lens. The shell was strongly convex. Used the s...
by NikonUser
Wed Apr 07, 2021 7:44 am
Forum: Photography Through the Microscope
Topic: Polarized midge larvae
Replies: 5
Views: 394

Re: Polarized mosquito (or midge) larvae

Excellent image; it's a Chironomid (midge)