Lovely little machine! I've got one similar except mine clamps to the table edge. They are absolutely ideal for diatoms as you can "be gentle" when needed or put a bit of elbow into it and whizz 'em round quite fast. Not as fast as electric centrifuges though - but they often don't go slow enough an...

I'm at one click to buy a pair of S2 flashlights. What 18650 battery and charger do you recommend? Any 18650 without "fire" in the name will do. EFest are pretty reliable. I have high-drain (35A pulse) for vaping, so that's what I used, but it's overkill for the low current the torch will need. If ...

A small brush will work to pick of the odd specks, but it will be pretty onerous for a really dusty wing - albeit doable. Give it a puff with a lens blower first. Don't bother with the Arctic Butterfly thing - complete rip-off for what it is. If you have an ultrasonic cleaner, a quick dip in that wi...

First and third are my faves. Wonderful shots. Don't sneeze

My two torches just turned up and they look pretty good to me, although I have nothing to compare them against. Both have the same output with a little vis at the blue/violet end. Having said that, it's tough to tell as most white surfaces fluoresce to some degree but PVC seems pretty neutral and th...

Ha ha. Lucky in the sense that decent, kitted-out Ortholux don't come up for sale very often I'll probably revert to an ICM 405 solution. Well, maybe...

Pau wrote:...but could be because I'm a registered PNAS suscriber

I think that's it because I don't see that tab bar. Only the abstract is available.

Thanks Eddie. At least I was attacking the correct ring, but I really can't budge it. Given the prior "scarring" of the slots and holes, I wonder if a previous owner Loctite'd everything back in...? But that's worrying news about it not fitting the M20 anyway. Useful to know though, looks like I nee...

Hi Fan, I think the first one, unfortunately, would't fit because of the unusual condenser fitting of the Zeiss IMC 405 http://i.ebayimg.com/00/s/NDgwWDY0MA==/z/UC8AAOSwT6pVw~WJ/$_1.JPG It was designed for the upright Zeiss Standard. The second link if for the Olympus dovetail but is more likely to...

Help. I want to remove the dovetail mount from a Leitz Heine condenser. I tried fitting it to my Zeiss ICM 405 inverted, but it didn't work too well. Ignore the brass ferrule on the bottom end in the pictures below, this is just a holdover from those attempts. I discovered an article on Micscape tha...

Very interesting - thanks for posting Chris. There's a bit more info in this article. http://earthsky.org/earth/brightest-bio ... its-secret

I understand that putting a 5x on a longer tube lens will compromise resolution, but deliver consistent quality across a full frame. Putting a 10x on a shorter tube lens will compromise corner and edge quality (a bit), but with improved resolution (due to larger NA and shrinking the image scale). So...

This won't help the OP but I was presented this in "suggestions" on youtube.

https://www.youtube.com/watch?v=tynfwPHzLiU

A guy deliberately disassembling a 10x Mittutoyo M Plan APO

I was calling him all kinds of fool until I read the comments.

Top notch work! And thanks for the Byron font link too - installed! Cheers.

Yes, like centres of jumping spider eyes... Perhaps we could MAKE a target from it? Does anyone with a slide have some of the liquid sensor-cleaner, which dries on the sensor and peels away with the dust ? It may yield a relief pattern we could use. Or photoresist remover? I found a pdf which lists...