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Techniques for Collectorshelp with MBC-10 STEREO MICROSCOPE

9th Feb 2015 06:37 UTCReinhardt van Vuuren

Hi, i recently acquired a MBC-10 sterio microscope which I planed on using for micromounting the only issue I have is that it appears that the lenses have a green tint to them, it shows a green tint regardless of light source Ive used metal heyalide, white led and even sun light and all give me the same greenish hue. Has anyone else had this issue before and how can i resolve the issue? any help or advice would be greatly appreciated.

here is a link to the exact microscope I have http://www.modelengines.info/microscope/

9th Feb 2015 11:39 UTCOwen Melfyn Lewis

Hi Reinhardt,


Let me start by saying that I have never handled an MBC-10 but I do know a little about LOMO. In the latter days of the USSR it used to make and supply fine quality optics to the Sov army. More recently it has turned its considerable experience in the field to the manufacture of civil optical equipment. I have and like A BELOMO x10 loupe.The lens quality is as good as any in the world - but the finish on the metal-work and the paint-job (yes, that's right, paint-job!) leave a great deal to be desired. Looking at the detailed views of the MDC-10 design, this too seems to have some quality issues. A read of the following may interest you. http://www.microscopy-uk.org.uk/mag/indexmag.html?http://www.microscopy-uk.org.uk/mag/artdec06/rp-mbs10.html


With regard to the 'green cast' you see. I assume that you have removed the green filter from the O/H lamp-housing? Note too the comments in the above article about crappy Russian lamps and the benefit from replacing these? Do this and you can choose your colour temperature. I don't believe that the optical system will introduce a colour-cast but this is something you can easily prove/disprove fr yourself.

9th Feb 2015 14:51 UTCReinhardt van Vuuren

Hi thank you for your reply, I have never used the light that came with it as it is far insufficient. I used a separate light that I normally use with my small microscope it is a metal halide and gives me true colour. What I noticed was that it's not in the eye pieces since they view clear I took them out and looked down the tubes and I still had a green tint I then took the scope into day light to see the difference and still had green which is why I am lead to believe that it is in the optics. A friend of mine suggested that it could be algae on the lense but I'm not yet convinced.

9th Feb 2015 18:34 UTCD. Peck

Reinhardt, are you sure you are not using the lamp that is a part of the microscope. There is a green filter in the lamp condenser that will affect what you see, if the lamp is turned on. You need either to make sure there is no power to the lamp, or remove the filter from the condenser housing.

9th Feb 2015 18:34 UTCD. Peck

Reinhardt, are you sure you are not using the lamp that is a part of the microscope. There is a green filter in the lamp condenser that will affect what you see, if the lamp is turned on. You need either to make sure there is no power to the lamp, or remove the filter from the condenser housing.

10th Feb 2015 05:50 UTCReinhardt van Vuuren

Should I repeat my self for a third and final time? I AM NOT USING THE LIGHT THAT CAME WITH THE MICROSCOPE I AM USING A DESK LAMP WITH A metal halide bulb so the green tint is not from the light source this has been established since natural sun light also gives me a green appearance. I apreciate you trying to help me but a little reading before responding would be helpful. from the looks of it the bottom objective is greenish and the optics have a mild green hint, the doublers are all clear

10th Feb 2015 15:58 UTCD. Peck

Reihardt, is it possible that there is also a green filter below the objectives?

10th Feb 2015 16:03 UTCReinhardt van Vuuren

I had a look but I don't see anything there

10th Feb 2015 18:20 UTCEugene & Sharon Cisneros Expert

If you purchased the microscope new, then it is unlikely to be algae on the lenses. However, if it was purchased used, then it is a possibility. In my microscope refurbishing business, I had the misfortune of buying some algae afflicted scopes from eBay. Sometimes it is possible to disassemble the lenses and clean them, if the coatings have not been attacked. I would suggest taking it to a qualified microscope repair place and getting an opinion.
 
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