MicrobeHunter.com Microscopy Forum

I have no personal experience of the original Leitz power supply. But if it is the one seen in one of the pictureres of the first posting I have the feeling they should run forever. Especially if it contains only a simple transformer and a rheostat. My guess is a bad contact somewhere. Anyway, the d...

Leitz Wetzlar Mikroskop Objektiv C Pl 100/ 1,32 Oel 170/ 0,17

What does "C" mean?

MicroBob wrote: ↑

Thu Oct 31, 2019 4:38 pm

Hi together,
The performance test of the 100:1 showed that it wasn't even able to compete with the Plan (achromat) version, low contrast and resolution.

I am curious: what means the performance test of 100:1? Is it something one can measure or just visual observation?

Thanks for the very comprehensive explanation. I think I have to read this through a couple of times to understand... I know and use practically only microscopes of the pre 1985 era, mostly from the 1960s Interesting. This is not the first time I have heard the microscopes before 80s are better. Wha...

Yes, through the glass surface. There are two ghost images visible blow and only one above. Thanks!

Thank you so much! There are so many nice and kind people willing to help. There are no filters. Actually the mirror was glued upside down as the original glue tends to loose when getting old. The answer was so simple, yet I didn't figured it out. I allready ordered front surface mirror from Ebay an...

But this does not affect the microscope performance, does it?

You are right: the ghost images are above and below. The image orientation is false.

When centering and focusing the field diaphragm a multiple image occurs. Would the reason be a damaged mirror surface? Any suggestions?

One thing I don't understand, could someone explain: why filter cubes might not be ok and safe if there are no visible delamination, scratches or missing parts. What can go wrong? Some ageing process destroying filtering capacity? Sounds really strange...

Thanks! I looked photomacrography.net as you suggested and found leds being 3-5W. I have also built an fluorescence illuminator myself using Ebay 3W leds. The system works somehow, however would need more light. With this experience I would say 15W is a good quess for commercial light sources (which...

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To avoid the safety issues and other issues involved in mercury/xenon arc lamps, LEDs can be used, but they need to be high power (say, 15W at the minimum).
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Do you know where can I buy 15W leds? In Ebay there are only 3W leds with proper wavelengths for fluorescence microscopy.

Thank you so much for this valuable information! I highly appreciate your effort in sharing your knowledge.

Mika

Thanks! This is practically useless now and there is nothing to lose. I bought this partly for fun and experience (of course hoping to get it cleaned again). I try to dismantle and mark the lens orientation and see what happens.

Tips for cleaning the lenses are still welcome.

I bought for-parts-objective and would like to clean it. It has some salt precipitate-looking dirt behind the front lens (between two outer lenses). So I have to dismantle the front lenses hopefully not touching the inner lenses in the system. I managed to turn the outer sleeve off. However, the inn...