Very good pictures. A couple of references about structural feather color and hydration:

https://www.sciencedirect.com/science/a ... 061100016X
https://www.osapublishing.org/josa/abst ... 50-10-1005
https://journals.aps.org/pre/abstract/1 ... .74.051916

287 pages, contains optical and SEM pictures of all discussed species. PDF of the whole book is available on ResearchGate (you probably need to be registered as a member, which is free): https://www.researchgate.net/publication/335021965_An_Atlas_of_Sphagnum-dwelling_testate_amoebae_in_Bulgaria_Adva...

"Ultra-black Camouflage in Deep-Sea Fishes"

https://www.cell.com/current-biology/fu ... 20)30860-5#

I try to avoid using either tripod or monopod as much as possible in the field. My favorite technique (which is nothing novel) is setting magnification with the focusing ring, stop down if necessary, then start at a distance slightly too far from the subject, move gradually toward the subject and tr...

[...] Stupid idea I had how was about a bit of foil on the centre of the puffer plus to reflect the hotspot back into the diffuser so it reflects back around and back out? Maybe cost too much light though. [...] Something similar is actually done in some speedlight diffusers, which are made of a si...

[...] The dimpled plastic type of diffuser looks interesting. There are products that have a similar texture. One that comes to mind right away are the very cheap translucent plastic panels for fluorescent ceiling lights. These have a diamond shaped dimpling pattern rather than circular one, but I ...

[...]The US president says on TV that the country of manufacture pays all tariffs like China does so question is does anyone know whom in Germany do I send my $35 duty bill to be paid?[...] I don't know about addressees in Germany, but addressing to Mr. Donald Trump, 1600 Pennsylvania Ave. NW, Wash...

It may not feel good, but on the other hand, this does not mean the end of Olympus cameras and lenses, but just a rebranding and/or a new management. JIP are in the business of purchasing industrial assets, restructuring them to make them profitable, and then selling them on. I don't think JIP will ...

... In Sweden it is simply impossible for a private person to get tested by asking for it. ... With reference to my earlier post, it is possible from today for private persons in Sweden to have a test for antibodies for SARS-CoV-2 (i.e. evidence that one has had Covid-19 and has recovered). The tes...

[...] I would like to see some comments and samples about how to get Kolher illumination, the advantages of the models with fly eye lens...and so [...] I would like too, but so far have found nothing definitive. http://www.microscopy-uk.org.uk/mag/artdec17/go-kohler.html seems to imply that the fly...

My interpretation is slightly different (unless I skipped too many earlier posts). It is based on the assumption that this camera has no hardware anti-aliasing filter, and therefore that it is implementing anti-aliasing in software (if this is not the case, then you don't need to read the rest of th...

... In Sweden it is simply impossible for a private person to get tested by asking for it. ... With reference to my earlier post, it is possible from today for private persons in Sweden to have a test for antibodies for SARS-CoV-2 (i.e. evidence that one has had Covid-19 and has recovered). The tes...

... If we had just kept the schools open, we'd already be there. Let the virus spread in the schools, then the kids bring it home, and voila, herd immunity (at least to the prevalent strain) in no time. Sweden did not close its schools. Yet it is estimated that the percentage of population positive...

Just in, a Nature study on the effects of lockdowns. They do have a large good effect and so far have prevented millions of deaths, but as the study says, we are still just at the beginning of the pandemic. The strategy of some governments of achieving herd immunity by allowing the virus to spread i...

Perhaps you already know, but there are a few old papers (mid-20th century) dealing with reflective microscope objectives in UV, for example: https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1365-2818.1953.tb02351.x?sid=nlm%3Apubmed https://pubmed.ncbi.nlm.nih.gov/13118588/ This one has sample imag...