Thanks Clive , greatest piece of helpful info on polarised light that is shown in a way that people can understand. Thank you for your time and effort in making the video , it's greatly appreciated

Just what I wanted - a clearly described method. Thanks.

@clivebagshaw2805

2 жыл бұрын

Glad it helped!

Excellent video, very informative. Thank you.

Excellent presentation sir. Thank you.

Excellent demonstrations and explanations.

this is the video that i needed, thanks you!

thank you for taking the time to make this video

Very useful stuff. Thanks!

Thank you I am going to give it a go it looks very interesting

Thanks, this video is very useful

Very clear and helpful explanation. I will do this with my microscope. [edit] Not quite as easy with my compound microscope, there is a substage filter holder but I will have to make a filter holder to go in front of the objective. There is no space in the microscope body as there is a prism there for directing the image up the angled tube.

@philhunt1442

Ай бұрын

You can place a filter under the binocular head lens, and the other filter should go above the lamp iris/lens rather than below the condenser I believe

Насколько понимаю, в этой поляризационной пленке есть йод, который и создает поляризацию. Поэтому люди и кушают йод, как витамин.

Excellent!

@clivebagshaw2805

4 жыл бұрын

Thank you! Cheers!

Great!

Thanks. What needs to be purchased for a regular light microscope? Under 20 dollars Thank you in advance

@clivebagshaw2805

Жыл бұрын

Polarizing film sheet $9.40 www.amazon.com/gp/product/B004X3XFHU/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&psc=1 or two circularly polarizing filters at $9.99 each www.amazon.com/Fotasy-Multi-Resistant-Coating-Circular-Filter/dp/B00BAH9AX0/ref=sr_1_11?crid=98NRMY3NYDTZ&keywords=37+mm+polarizing+filter&qid=1684971202&s=electronics&sprefix=37+mm+polarizing+filter%2Celectronics%2C176&sr=1-11

will these methods work for a darkfield set up? my darkfield condenser I replaced my regular condenser

@clivebagshaw2805

2 жыл бұрын

Probably not. Darkfield operates with a high numerical aperture, but to get a dark background with crossed polarizers you need a low numerical aperture (small condenser iris). I just tried to combine them on my setup and the image looked like darkfield and there was little effect when I rotated one of the polarizers.

@littleboober

2 жыл бұрын

@@clivebagshaw2805 ty for the information

I have seen a beautiful images of crystallised paracetamol. I have filtered some paracetamol but crystals are nowhere near the same shape like the ones I have seen. Any clues?

@clivebagshaw2805

5 ай бұрын

Sorry, I don't have any direct experience with paracetamol. I can only suggest slowing down crystal growth by reducing the evaporation rate (e.g. in a partially closed container)

@RadBudaspectrum-photography

5 ай бұрын

Thank you, I will certainly try that. The covering glass didn't really worked as the paracetamol cristals started to grow outside of the edge of covering piece. Do you know any other substances that grow interesting cristals? I've tried all typical household accessible chemicals. Take care

@clivebagshaw2805

5 ай бұрын

I haven't explored crystals much but have seen some interesting patterns when sea water dries out on a slide sfmicrosociety.org/features/living-in-a-polarized-world@@RadBudaspectrum-photography