MicrobeHunter.com Microscopy Forum

I tried doing something similar with a 6w version on the Labomed LB-592. I removed the halogen bulb and replaced it with the 6w LED. Two major problems. 1 - The LED lamp is round and only 1/3 of the LED's faced the condensing lens. 2 - 1/3 of the LED's do not emit enough light to do anything practic...

TNK: You have a nice scope. It looks as though there is a partial photo port on top. To mount your Canon camera on your microscope you may need a phototube for the microscope. If you can find a photo tube with a 25mm inside diameter, the most economical solution is the camera adapter with a built in...

Or you can use a free software package with your calibration slide. The package is DigCam from Science 4 All It is simple to calibrate and use. Basically, you measure your calibration slide once for each objective. Then take your microscope photo and drag a line across the object to be measure. The ...

The submissions link does not help much when the Editor does not respond to submissions.

The Editor may be busy with other occupations, but not responding to emails is a bit disheartening.

Nov-Dec is the latest issue.

mrsonchus:

To accurately print what you see on the screen within the limits of your printer, calibrate your monitor with a hardware device like the Datacolor Spyder or the Xrite Colormunki.
Set your printer's colour management to sRGB and use a quality photo paper.

The above give satisfying results.

Are these Nikon Eclipse microscopes?

SteveSteve I do not recommend buying from India if your shipping address is outside the Indian sub-continent. The quality of Indian microscopes is quite good, but the shipping containers are totally inadequate. I purchased a polarizing microscope from India via eBay. When the microscope arrived it w...

A very good idea.
This thread is deviating from the original topic.

I used both high power LED (20W) and 100w halogen lighting and do not use filters on either light source. My camera capture programme does all the colour balancing. I may be the exception, but I do not use the eyepieces on the microscopes. All viewing is done on the calibrated display through the Ca...

I cannot disagree with apochronaut on the historical use of the field aperture to achieve even illumination. The field aperture, if present, plays a large role in contrast and resolution with low power objectives. The proper use of the field aperture with low power obj. is to stop down the condenser...

Your microscope is quite expensive and it may be worth buying somethione like this for spare parts.
Fisher AMG MicroMaster Lab Stereoscopic Inverted Phase Optical Microscope PARTS

Have you tried contacting a distributor such as Fisher Scientific

A different camera and a different photo eyepiece. The specimen is a thin section of Gabbro, a common oceanic mineral The camera is a Canon 5D MkII and the photo eyepiece is a Meiji 2.5x. Post processing by Adobe Lightroom and RedRex web builder. Right click the photo and open in a new window. Gabbr...

For what it is worth, the difference I can see is also seen and printed by my HP DJ 130PS printer. P.S. In the colour world ICC profiles are not a minefield, but a godsend to consistent colour. As stated earlier, my monitors are calibrated to the AdobeRGB colour space and my printer and papers are p...

Very good suggestion. If possible.
Another case of eBay "You get what you see".
Another item Bally796 will have to fix is the voltage for the lamp .
The microscope's power supply is 110V
“LOVELY CONDITION GEM MICROSCOPE. UNABLE TO TEST AS 120V.”

Oh well, that's life the Internet world of colour.
The difference in quite noticeable in an A-B comparison in FireFox, Internet Explorer and Chrome on all three of my displays.

From the original listing.

This is the sale of a rare classic VINTAGE GEM INSTRUMENTS GEMOLITE MK 5 DIAMOND MICROSCOPE BAUSCH & LOMB TO RESTORE.

Bally796 may not have questioned "to retore"

If what you describe as the zoom mechanism, Bally796 has a bigger problem than just "replacing" the part that holds the objective.

I will take your word on this particular scope, but on my old OMAX the assembly rotates the the 2x and 4x objectives into position.

What I call a turret. Will not be easy to replace.

A lens turret?

If you cannot see the difference between the two large images I have to assume you are not using a monitor calibrated to the sRGB colour space. My display is factory calibrated to show 95% of the AdobeRGB colour space, but I assign the sRGB profile to the photos for this forum. There are distinct di...

Did you look at the large images? Right click on the small images to open the large image in separate browser window.

The links below are to two large photos of Nepheline Syenite as observed through a 10x objective and crossed polars. Photo 1 has the field iris set to wide open and the condenser aperture stopped down to obtain maximum contrast and resolution. A basic scenario for microscopes without a field iris. N...

With apologies to Astyanax: I do not recommend purchasing a used microscope from an eBay seller. It is a rare seller that offers free return shipping for defective products and an ever more rare seller that will accept returns because the buyer was not happy with the product. If buying on-line I hig...

Rodney:

Please detail the parts source for the cup and piston.

The object in the lower right side needs explaining. Can I use my head instead of ...

When using my very tall Labomed microscope I sit on a drafting chair. The chair can rise substantially higher than a standard office chair.
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I cannot say or demonstrate Kohler illumination better than this presentation.

Kohler illumination setup

As I mentioned above, the Amscope microscope has a flip out condenser lens and a field iris. How to set your microscope up for Koehler illumination. For your 10x obj. and above, open the condenser and LED field iris fully. Focus your image. Stop down the LED fields iris Adjust the condenser height u...

No the effect shows up in stills and videos. The blind effect starts around half power, disappears and the reappears near maximum power. The effect almost looks like it is beating with sub harmonic of the Canon camera's frame rate. I do not know if non-Canon cameras have the same issues with high po...