Excellent pictures and video!

Nice geometry and colors!

Interesting structure, it's awesome how many different things can be made with just keratin. Are the colors only due to polarized light or is it a stained slide?. Nice picture in any case! Porcupine quills are a normal souvenir for tourists coming from some African countries, I have few ones after a...

Dunaliella salina is a highly halophile unicellular Chlorophyte alga that in some stress related situations produces high concentration of red carotenoids and in many cases is the main cause of the red or pink color of hypersaline waters (and also the source of the pigment that gives its color to f...

This imago of Aedes aegypti female emerged from a pretty putrid pond water sample. It is an invasive specie not frequent in my area, so I didn't want to allow it flying free. 1- First I portrayed it inside a glass covered Petri dish with the Nikon AZ100, Plan Apo 1X (1.5X on sensor) IMG_0013modBR.jp...

I concur with Pete

Zeiss used both systems in their Standard series microscopes of which I have many components, the 3 points system in most cases works better than the 4 points one, despite the 4 points system movements seems more intuitive (orthogonal displacement)

How could this be made to work with mirrorless? In the DSLR setup the laser is focused at the mirror screen (optically at the same plane of the sensor) by the viewfinder optics. I guess that if you shine the laser on a screen placed at that position it will work, maybe also without screen but still...

Hi KarlGaff, welcome to the forum! You have posted truely excellent cross polarization images, a good presentation of your work, but please be aware of our posting guidelines: The image posting limit for all Image Galleries is six (6) images during the course of one (1) calendar day take a look at h...

This is my version, much worse looking than the original by Chris but working well Just a Chinese spare eyecup for my Canon DSLR, a 12mm diameter plastic tube wall fixation, some epoxy, a battery box and a switch. IMG_0514br.jpg IMG_0516br.jpg IMG_0519br.jpg I've observed that if I forget switching ...

Admin note: Topic moved from General Discussion Forum and Community Announcements forum because the subject fits better in Equipment Discussions

Nikon Small World 2020 Photomicrography Competition awards, take a look at https://www.nikonsmallworld.com/galleries/2020-photomicrography-competition Quite few pictures are from forum members, hunt for them And here you have the videos: https://www.nikonsmallworld.com/galleries/2020-small-world-in-...

Great work again, Saul

Nikon BHMJ

BHMJ is an Olympus model, I don't know the existence of this denomination in Nikon models, what am I missing?

What's the WD?
I have an older Nikon MPlan Apo 40/0.80 and its WD is only 0.7mm

I've received the parts, mounted and preliminary tested the whole setup. I've coupled the camera with a bellows and this has allowed me to find the parfocal point. Finding it has taken me lots of attempts but now it's done: The distance from the V-T end to the sensor is 164mm (120mm up to the Canon ...

If you are planning to use it for macro style work (direct projection without eyepiece) be aware of that most finite objectives of this vintage need compensating eyepieces to complete the aberrations correction of the objective. I'm not sure with this one but almost sure.
Alan, correct me if wrong