🔬 071 - What is Microscope MAGNIFICATION? | Microscopy
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- Опубликовано: 23 дек 2018
- There are two different kinds of magnification: magnification and linear magnification. The basics of these are explained here.
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Extremely helpful. Many thanks.
Wow! I never understood the specifics about magnification. So helpful... as all your videos are! Thanks.
Thank you, that was interesting and good information to know!
Another great video!
5:36 I didn't know this idea to draw microscopic image. It will help me in my histology practical class. Thank you for making this video. I love your channel.
I love microscopy!!!!😍😍😍😍🔬🔬🔬🔬
Oh man thanks haha I was so lost (just starting out but loving it)
I’m currently reading Evenings at the Microscope by Philip Henry Gosse, (1859) and he speaks not of magnification (not 10X or 40X) but of diameters. For example, a fly tarsus observed under a power of 600 diameters. Any idea on how this relates to magnification?
Wonderful. Thank you. About the technical components of a microscope, @Microbehunter, you have a video on Phase Contract. Awesome. Thanks for that. Can you add one for other contrast techniques like DIC (differential interference contract), Florescence, Polarising and Is there something special for Metallurgy?
Loving it, wish I wold have had one professor half as good as you.
Wow. Very cool.
Good video. Another concept I would love to see you explain is Field Number. It is marked on my objective lenses as 20 but descriptions of FN that I see involve apply to the eyepiece, not objective lens. Confusing!
It could be that the FN on the objective specifies the maximum usable FN of the eyepiece. Older objectives had about a FN of 18, the newer ones a FN of 28. There is no point in attaching eyepieces whose FN is larger than the FN provided by the objective, and this might be the reason, why some objectives have the FN written on it.
Explained here: www.microscopyu.com/microscopy-basics/field-of-view
Hi sprey i have simple question
Of i have 10x and 40 x ( where i font now where fix inlet or outlet)
İf i make simple microscope 40 sm lengtth
And screw 20 sm. What iş fov detal?
If you are not able to put a scale bar in the picture, what is the most “meaningful” number you can use to describe the magnification (in your opinion)? eg. The NA or the objective used.
NA is a measure of resolution and does not say anything about size. Objective used is possible, but then again this is not very informative because it disregards other parameters that are relevant for the total magnification (camera distance, magnification of photoeyepiece, or reduction optics, pixel density on the camera etc.). If you specify the objective on the picture, then do not simply say 10x or 40x, but write out "10x objective" so that the person looking at the picture knows that it refers to the objective used and not to a 10x total magnification.
1:35 died laughing
This is a very informative video.
Does this for explanation also applies to telescopes?
Almost: a 50x telescope will make the object appear with a 50x larger diameter, so in that sense it is the same. Stars are so far away that they will still appear as a point, however. So in that sense magnification is still not relevant. Telescopes actually should be seen as light-gathering instruments that make faint objects appear visible and not so much as magnifying devices. Magnification is relevant in telescopes for observing the moon, planets, other objects on earth. But the magnification "on paper" (the linear magnification) is irrelevant,. The moon shown on a print-out is actually not magnified, but rather smaller than in real life (of course). So we do not use magnification and scale bars here.
Yes, let me just easily calculate 5 μm and ah, call it a quit jajaja find that funny, love this guy.
Hi, I just got myself a microscope so it might be a silly question but how do you get the original reference size? How do you know that the length of the bar is 0.1mm? I saw some additional scales that one attaches somewhere to give a reference grid or lines but I don't really know how these work or how (maybe) these can be done DIY style.
I'm interested in hearing more on the subject.
Great channel. You helped me a lot in deciding to buy a used Olympus over a new noname. I am over the moon with my purchase and very excited to explore.
In brief - you need a micrometer slide. They contain a scale. You take a picture of this slide and then can count the pixels. Alternatively you can do an approximation using a ruler. Using the 4x objective, take a picture of the ruler (1mm) and then count the pixels of 1 mm. For the 10x objective, this might be too large to see. Therefore multiply the pixels of the 4x objective by 2.5 to get the 10x value. I will do a video on this.
@@Microbehunter excellent! That helps clarify things. Just ordered a micrometer slide. Thank you!
I will soon publish a video on this.
@@Microbehunter sweet! Looking forward to it.
Magnification demystified. Thanks.
2 months and not known video, ouch...
Meh, It'll get somewhere 15,000 views
Amazing video but why you get nervous be calm man
TECHNO Ashu He is a nerd