View allAll Photos Tagged microscope
This is a partially disassembled microscope made by E.F. & F.H. Tighe, Detroit, Michigan, possibly their No. 5 version, ca 1889.
It had been dropped while in its box from a height of about three feet thoroughly jamming the focusing mechanism. A friend wanted to know if it could be repaired since it has great sentimental value. The focusing mechanism was jammed to the point where it was locked, producing no tube movement, but a definite "skip" as the pinion gear engaged the rack. Fortunately, the rack is actually made from a slightly bowed piece of brass... not a thick solid piece. Anchored with screws at either end, the rack has a bit of springy flex to it, preventing gear or rack damage when forced. Getting the tube off the focusing assembly without damaging either was accomplished by directing a thin stream of hot air onto the focusing block, then precisely applying WD-40 with a blunted toothpick. Once the tube was removed, small bits of brass were cleared away and the slides cleaned and polished. De-gunking the surfaces of the slides was difficult because they had a thin coating of hardened black grease that would not move using any kind of cleaner. Cotton swabs dipped in boiling water finally softened the stuff to the point where "Nevr-Dull" brass cleaning wool was able to do the job. Reassembled, the scope is now back in its original configuration and looks great. Some folks have been known to clean off any protective lacquer and polish the brass to a mirror finish. That would be OK if this was still in the maker's display case waiting to be sold, but would totally destroy the nice patina that 130 years of aging has produced.
DSC-5435
Hi Greyframe!
As you asked - that’s my microscopic equipment. I use an vintage (from the 70ies) Zeiss (West) Standard RA which is equipped for DIC (differential interference contrast), phase contrast, polarization and for good, old, bright field. For DIC I use planachromatic objectives and for bright field I use planapochromatic ones, if possible.
It’s old stuff but these gadgets are very robust and they are still working perfectly well. Moreover, their level of optical performance is not so far away from contemporary benchmarks. Many of these old microscopes are still in use in research facilities all over the world.
My camera is a Canon EOS 70D and I combine it with an old Leitz Elmarit-R 35mm. Microphotography easily pushs optics to it's limits and an Elmarit simply yields a slightly better resolution than Canon lenses. The difference is not big, but you can spot it nevertheless. For microscopic sessions I use live-remote-control-mode, that’s much more comfortable than anything else.
Zeiss ceased production of these microscopes at the end of the 80ies or so, so their original camera-adapters don’t fit to digital DSLRs. Fortunately I found someone who was able to build me a fitting adapter. Quite the same is true for the lamp - I use a LED instead of the original light bulb and this contraption was built and adapted by another microscopy buff.
Ah, and I use a software called Zerene for stacking. It’s output still needs some adjustment of contrast and brightness and some cleaning up, too. Nevertheless, if you don’t have microscopic pictures of high quality and high resolution as an input you cannot end up with a good picture in the end. Photoshop cannot compensate for bad resolution and so on.
OK, I don’t know whether all your questions are answered now - if not, just ask. Maybe, my answers will come with some delay but there will be answers :-)
A few days ago I did a comparison of these two Nikon microscope objectives. I originally published the comarison on www.photomacrography.net/forum but decided to put a slightly modified version of it in my flickr stream as well. See below for the entire test!
A microscope (from the Ancient Greek: μικρός, mikrós, "small" and σκοπεῖν, skopeîn, "to look" or "see") is an instrument used to see objects that are too small for the naked eye. The science of investigating small objects using such an instrument is called microscopy. Microscopic means invisible to the eye unless aided by a microscope.
There are many types of microscopes, the most common and first to be invented is the optical microscope which uses light to image the sample. Other major types of microscopes are the electron microscope (both the transmission electron microscope and the scanning electron microscope) and the various types of scanning probe microscope.
The first microscope to be developed was the optical microscope, although the original inventor is not easy to identify. An early microscope was made in 1590 in Middelburg, Netherlands.Two eyeglass makers are variously given credit: Hans Lippershey (who developed an early telescope) and Zacharias Janssen. Giovanni Faber coined the name microscope for Galileo Galilei's compound microscope in 1625 (Galileo had called it the "occhiolino" or "little eye").
ノダケ(Angelica decursiva, 紫花前胡)
Name: DSF_0245stack
System: Microscope(Carton). Manual aperture on microscope. Reflected Light with commander mode.
Note: Reproduction ratio is about 7x.
Edit: Focus stacking.
When i study in medical college, I have a white ZEISS microscope. Althogth my pathalogy was down by my professonal. I stll like my microscope. But i am graduated for 9 year and be a father. So i must sell it to buy more LEGO brick for my child, in fact, these brick are for me. :)
dug out a box of old microscope bits and stuck one onto the front of the camera - not the best but it still surprised me as I didn't really expect anything very much...
4x microscope, 3 exposure merged capture. Mounting medium, bubbles, and debris accidentally create beauty at the edge of a slide cover.
Photo taken with digital microscope of rock that I found along the South Yamhill River in Oregon. When I examine it with a low, diffused light and move the angle and direction of the light, many different surreal scenes and colors emerge and disappear.
There will be more to come of this rock.
There's a few ways of doing this (it's not my design by the way) and I'm sure you'll find a few on flickr. As long as you've got the curved brick and the binoculars it'll look good.
My father was a forensic scientist. This is one of his microscopes from early in his career, sitting on an old mirror from my illustration/art days.
Part of my light painting series:
Want high quality microscope for your lab and training with assured company guarantee contact micro-optic today! Visit: micro-optics.com.sg/
Professor Christina Hydron is pleased with this new equipment... :D I bought her again recently, kinda missed her... I can't remember what happened to the previous minifig whether I sold it or gave it away...
The microscope is seen from one of Lynn's older photos where she bought set from a fair or something, with laboratory stuff...
You don't actually need a microscope to take images of microscope slides. All you need is: a "superzoom" camera (here featuring the Canon PowerShot SX40 HS), a macro conversion lens (Raynox DCR-250 attached to the front of the zoom lens), and a cheap arts&crafts light box to provide trans-illumination. Some bubble wrap provides the means to adjust your camera height and angle and voilà you've got yourself a microscope. Setup took about two minutes maybe. *LOL*
The resulting image is shown here. After some testing and printing, the conclusion is that this setup can give you up to 1:125 magnification on a 150 dpi quality print.
An ISO 6400 example from the Canon 1DmkIV.
A pretty tough job for the sensor. Saturating laser beams shining off of chrome plated microscope objectives in an almost completely dark room.
Saw this photo by Lynn, bought the parts to build the laboratory. Those medium blue slopes are hard to find...
You can buy the kit from brickyt.com/shop/microscope-lab/