MicrobeHunter.com Microscopy Forum

Thanks for sharing your experiences and insights. Glass seems to be optimal. It is probably best I don't make glass needles if possible,glass splinters can be hard to remove. If someone chimes in with "Tried tungsten, doesn't work for diatoms" that would be good too. For fine pointed needles tungste...

Hi Charles, Your work and posts here are much of my inspiration. The bright point Klaus says is the diatom he picked up?, Glass may well be the way to go, I found tungsten easily doable which moves it up the list above glass so far. Pure tungsten withstands the tip bending like a dog's leg. Tungsten...

The short film The diatomist is worth watching on YouTube. Klaus Kemp uses a needle that has tip erroded. Tungsten .25mm is cheap for 10m. Make a lifetime of needles from that.
Seen someone selling them ready made $9 for 3.

Used a small slide to avoid shorting. Think it's hydrogen given off but there is a fine mist of caustic given off too. The .25mm tapers to a fine point just by leaving 10mm in the solution. tip can be made sharp to a molecular level apparently by practice dipping the tip. Bends rather than breaks. T...

IMG_20210601_101149557~2.jpg Hi. Did a search here but didn't find so better to have twice than not at all. Klaus Kemp YouTube video "The diatomist" shows a diatom being picked up, the tip of the needle is most likely a tungsten. The method for making is quick, easy and repeatable. IMG_20210601_101...

Should microscopes be labelled with a warning or at least a caution?.
I did manage to evict one but it was very small.

Nikon Labophot 2. Phase/BF/DF.
Euromex iscope Phase/BF/DF.
Watson stereo triple turret.
GTVision XDY?. Inverted phase.
Sat on a desk that I really like.
There are others....
I can explain, honestly.

Where Nikon Labophot/Labophot 2 stages are slotted for condenser they are not all the same. Parts can get swapped around. 18mm wide or 25mm wide slot. 18mm slot version may not work properly for Phase contrast 2 1.25 condenser. Lens contacts the stage before the stop,sub optimal, with phase objectiv...