Hot Gift Hint: the splendid "La Salamandre" nature magazine
from Switzerland just at the moment is preparing a Special Salamandre Issue exclusively
dedicated to tardigrades.
Small take-along helpers: Loupes (V) or slightly beyond loupes:
A microscope might be considered as a synonym for sober and serious intellectual science.
But there is one type of instrument which appears to be different: the "travelling",
"excursion" or "field microscope". Their actual usefulness
might seem very questionable in the eyes of girl-friends or wives.
Half way between loupe and microscope: the
Emoscop (also Emoskop, Emoscope ...)
The Lumex Zoom Pocket Microscope from Japan, probably made around 1970, instead has two adjusting wheels, one for focusing and the other for the variable zoom between 70x und 200x. The lever on the right-hand side acts against a spring on a fork-like slide holder. Directly above this lever you will see a circular head switch actuator which enables the electrical illumination. Our impression is that the optical quality, even in the higher zoom range, is quite competitive and clearly beyond the classical loupe range. We might use it, like the Emoscop, in order to screen a micro aquarium. But, of course, no chance with a Petri dish, as there is no specimen table a all.
You note, we are accelerating. The Cogit Loupe Microscope belongs to those few travelling microscopes which maximise the glamour of minaturisation, fine materials, beautiful finish and ultimate gadget character. It goes without saying that you would n e v e r take it along to journeys or expeditions but instead will pack in away in a hidden corner of your cupboard in order to protect it against the avid eyes of other gadget lovers like Sherlock Holmes or James Bond. The Cogit is really tiny, considerably smaller than a package of smoke annoyers. It resides in a thin shelled urse made by incredibly soft leather. The focusing wheel is visible on the small side of the housing. When you are going to press the round, nickel finished button on the front side, the spring-loaded small object table will extend to working distance.
When designing the Cogit the French engineers apparently tried to reach a new high-score in mechanical and optical artwork. The schematic diagram below illustrates the fact that a Cogit Pocket Microscope in fact houses three (!) prisms and four (!) separate groups of optical components. Once again, you might use a Cogit in order to look at some tardigrades - in theory - but of course it will be much more reasonable to lock it away in a safe ;-)
When coming back to the grounds of real life and real outdoor conditions we have to acknowledge that it might be better to use something less delicate outdoors. The German Eschenbach company, situated in the city of Nuremberg, provided a broad range of tiny microscopes - with so many modifications that very few people on earth will actually have an overview of the complete model range over the decades. The company obviously sold its smaller instruments in a different product-line called Enuro (probably an acronym for Eschenbach Nu(e)rnberg Optik). One of those Enuro instruments is shown below as a typical example. It has a nicely designed double arm stand, a fine finish and a horizontal object table. The Eschenbach Company even provided a fitted electrical illumination.
But there is a flaw: the optical quality of the tiny objectives is well below standard RMS achromatic optics. Well, beg for a miracle and just hope for an Eschenbach microscope mutation with Enuro design and standard optics. And in fact, it actually exists:
© Text, images and video clips by
Martin Mach (firstname.lastname@example.org).