Search found 254 matches

by Leitzcycler
Mon Nov 01, 2021 6:32 am
Forum: Miscellaneous
Topic: where to buy biochemical consumables?
Replies: 13
Views: 4358

Re: where to buy biochemical consumables?

To be 100% correct, I was just joking :)

Modifying virus genomes would be a bit challenging in a home lab even for professionals...
by Leitzcycler
Sat Oct 30, 2021 8:01 am
Forum: Home-made microscope adaptations
Topic: Do you think that would work for a led conversion?
Replies: 61
Views: 15256

Re: Do you think that would work for a led conversion?

Does it work with LED? I thought LEDs needed to be driven by current and not voltage.
I have used variable voltage as I didn't know it won't work :)

However, the controllable range is very narrow. Is it more wide using variable current?
by Leitzcycler
Fri Oct 29, 2021 6:54 pm
Forum: Miscellaneous
Topic: where to buy biochemical consumables?
Replies: 13
Views: 4358

Re: where to buy biochemical consumables?

I guess because they do not sell highly dangerous things
Using molecular biology methods you may e.g. modify viruses so it may be much more dangerous than HCl. Be sure you will be registered by the intelligence guys :)
by Leitzcycler
Tue Oct 26, 2021 7:25 am
Forum: Home-made microscope adaptations
Topic: Do you think that would work for a led conversion?
Replies: 61
Views: 15256

Re: Do you think that would work for a led conversion?

My favorite solution by far is the BuckBlock from LedDynamics:
https://www.luxeonstar.com/2100ma-dimma ... iver-leads
Where do you buy these? It would be convenient to find a European supplier.
by Leitzcycler
Wed Oct 20, 2021 8:16 pm
Forum: Home-made microscope adaptations
Topic: Do you think that would work for a led conversion?
Replies: 61
Views: 15256

Re: Do you think that would work for a led conversion?

I was wondering if you mysteriously stumbled upon a light storing condenser that equalizes light output
Would be nice, however I have to be satisfied with kondensaattori.

As you see, it is too late for me to hang around here and my head is not clear any more. So it's time to go to sleep.
by Leitzcycler
Wed Oct 20, 2021 8:04 pm
Forum: Home-made microscope adaptations
Topic: Do you think that would work for a led conversion?
Replies: 61
Views: 15256

Re: Do you think that would work for a led conversion?

Ooo? Your condenser eliminates the flickering? That is mysterious.
Sorry, I was not thinking in English

Wikipedia:
The capacitor was originally known as a condenser or condensator. ... This name and its cognates are still widely used in many languages, but rarely in English, ...
by Leitzcycler
Wed Oct 20, 2021 7:20 pm
Forum: Home-made microscope adaptations
Topic: Do you think that would work for a led conversion?
Replies: 61
Views: 15256

Re: Do you think that would work for a led conversion?

Playing with shutter speed?
There is anti-flicker function in the program, which I don't understand more deeply. However, my big condenser eliminates it mostly.
by Leitzcycler
Wed Oct 20, 2021 7:03 pm
Forum: Home-made microscope adaptations
Topic: Do you think that would work for a led conversion?
Replies: 61
Views: 15256

Re: Do you think that would work for a led conversion?

Have to add that the small led doesn't work well for low power objectives in my system. However, I don't care because as you know, I mostly use 40x and 100x objectives for yeast and bacteria work ... The problem may be also in my condenser (in this model you should unscrew the top lens to get low ap...
by Leitzcycler
Wed Oct 20, 2021 6:51 pm
Forum: Home-made microscope adaptations
Topic: Do you think that would work for a led conversion?
Replies: 61
Views: 15256

Re: Do you think that would work for a led conversion?

It works perfectly for eye. You can see sometimes a minor interference in camera, however you can eliminate this by the camera program.

My intention was restoration of the original transformer for led option simply because I like the style of the transformer and think it is really very cool. :)
by Leitzcycler
Tue Oct 12, 2021 7:10 pm
Forum: Microscopes and optics
Topic: Leica DMRA
Replies: 24
Views: 5288

Re: Leica DMRA

And now from Lomo Biolam we have come to this! I was sure this will happen sooner or later :)

I didn't guess so soon though...
by Leitzcycler
Sat Oct 02, 2021 6:54 pm
Forum: My microscope
Topic: New scope of unknown brand
Replies: 7
Views: 2880

New scope of unknown brand

My 7-year-old son made his first binocular microscope himself this evening. He told he can see very clearly the blue bacteria causing inflammation in stomach. :)
by Leitzcycler
Tue Sep 28, 2021 9:25 am
Forum: Microscopy accessories
Topic: Oblique illumination condenser LOMO ON 14. New toy!
Replies: 10
Views: 2993

Re: Oblique illumination condenser LOMO ON 14. New toy!

direct measure of the aperture diameter in millimetres For what do you actually need that information? The scale telling the real aperture would be much more informative? Although I never use that either. Just turn it so that the image looks good :) What I find bizarre there is no mention about tha...
by Leitzcycler
Tue Sep 28, 2021 4:18 am
Forum: Microscopy accessories
Topic: Oblique illumination condenser LOMO ON 14. New toy!
Replies: 10
Views: 2993

Re: Oblique illumination condenser LOMO ON 14. New toy!

However, on the condenser, the aperture ring goes from 30 to 6, 30 being the most open position. What does this correspond to? That question is still open. Some condenser aperture rings has marking around 6 to 30 and some e.g. 0.2 to 1.4, the latter corresponding the actual aperture. I have wondere...
by Leitzcycler
Mon Sep 27, 2021 7:15 pm
Forum: Microscopy accessories
Topic: Oblique illumination condenser LOMO ON 14. New toy!
Replies: 10
Views: 2993

Re: Oblique illumination condenser LOMO ON 14. New toy!

Unfortunately that lens was missing.
by Leitzcycler
Thu Sep 23, 2021 2:26 pm
Forum: Miscellaneous
Topic: where to buy biochemical consumables?
Replies: 13
Views: 4358

Re: where to buy biochemical consumables?

I don't know how easy it is in Switzerland. However, my solution was to establish a company/trade name. I paid a register fee of around 75€. That's all and after that there has been no problem to order chemicals. The dispatching costs may be rather high though. I think the main reason is that non-re...
by Leitzcycler
Thu Sep 23, 2021 8:44 am
Forum: Microscopes and optics
Topic: Olympus objectives
Replies: 7
Views: 1860

Re: Olympus objectives

I still wonder if it is really worth spending money of 500€ for an objective. For that money you will get a whole microscope with a set of objectives surely good enough. Trinocular is better of course and then you also need money for a good camera. So I would start purchasing a good stand and then a...
by Leitzcycler
Thu Sep 23, 2021 8:28 am
Forum: Microscopes and optics
Topic: Olympus objectives
Replies: 7
Views: 1860

Re: Olympus objectives

Your plan is excellent! And giving Lomos to children is just what they are made for.

There is a thread somewhere here in which someone said that microscopes will very soon multiply after you have bought the first one... :)
by Leitzcycler
Wed Sep 22, 2021 7:23 pm
Forum: Microscopes and optics
Topic: Olympus objectives
Replies: 7
Views: 1860

Re: Olympus objectives

I am thinking of building an olympus system down the road. What exactly do you mean? I think it makes no sense to upgrade your Biolam with ojectives of other brand if that is what you mean. Or do you think you allready need a better microscope? I will tell you the following story. Around ten years ...
by Leitzcycler
Tue Sep 21, 2021 6:54 am
Forum: My microscope
Topic: Unknown Olympus - Please help indentify
Replies: 14
Views: 5156

Re: Unknown Olympus - Please help indentify

I think it is FH. EH has separate fine focus while FH has coaxial coarse and fine focus.
by Leitzcycler
Sun Sep 12, 2021 7:24 am
Forum: Introduce yourself
Topic: Hello from Scotland
Replies: 8
Views: 2654

Re: Hello from Scotland

My lab had spent several years beating our in situ protocol into shape before I arrived
That is nice to know. I only spent one year... :)
by Leitzcycler
Sat Sep 11, 2021 7:02 pm
Forum: Introduce yourself
Topic: Hello from Scotland
Replies: 8
Views: 2654

Re: Hello from Scotland

Welcome!
I have a limited microscopy background
Limited :o I tried to put up an in situ hybridisation system once and it never worked. I still get a post-traumatic stress reaction every time I see in situ somewhere.

I highly appreciate your experience!
by Leitzcycler
Sat Sep 11, 2021 7:39 am
Forum: Microscopes and optics
Topic: LOMO biolam C1
Replies: 80
Views: 19968

Re: LOMO biolam C1

There are discussion how to refurbish a delaminated objective lenses. Some people use immersion oil which fill the empty gaps between lenses. Your lens system looks like it is no possible to dismantle. An it is very badly delaminated I think. However, what might happen if you immerse the whole lens ...
by Leitzcycler
Fri Sep 10, 2021 12:00 pm
Forum: Microscopes and optics
Topic: LOMO biolam C1
Replies: 80
Views: 19968

Re: LOMO biolam C1

Don't really know, however delamination would be the most probable option.
by Leitzcycler
Fri Sep 10, 2021 11:30 am
Forum: Microscopes and optics
Topic: LOMO biolam C1
Replies: 80
Views: 19968

Re: LOMO biolam C1

It was a joke, sorry :oops:
by Leitzcycler
Fri Sep 10, 2021 10:37 am
Forum: Microscopes and optics
Topic: LOMO biolam C1
Replies: 80
Views: 19968

Re: LOMO biolam C1

what is this?
WD40 obviously :D

Honestly speaking: if you, at some point, would end up the conclusion you need a new one, I can send you mine. I don't have any use for it.
by Leitzcycler
Thu Sep 09, 2021 6:50 pm
Forum: Beginner's corner
Topic: LOMO 90x 1.25 Oil
Replies: 26
Views: 5853

Re: LOMO 90x 1.25 Oil

I agree that the grease used in Lomo may be acidic and corrosive. However, I wouldn't use ammonia or other strong agents although it might dissolve the copper salts it theory. The reason I have used WD 40 (CRC 56) is that it penetrates well and softens the grease after which the parts, according to ...
by Leitzcycler
Thu Sep 09, 2021 11:56 am
Forum: Beginner's corner
Topic: LOMO 90x 1.25 Oil
Replies: 26
Views: 5853

Re: LOMO 90x 1.25 Oil

That's correct. When everything possible is done, you will need a hammer to mold fishing net weights out of old Lomo stuff :)
by Leitzcycler
Thu Sep 09, 2021 5:49 am
Forum: Microscopes and optics
Topic: LOMO biolam C1
Replies: 80
Views: 19968

Re: LOMO biolam C1

Would this help?