IPHONE SCREEN - 100X
IPHONE SCREEN - 100X
Ever wondered what your iPhone screen looks like up close?
Specimen taken at 100x magnification.
Please leave any comments on what you think...
Specimen taken at 100x magnification.
Please leave any comments on what you think...
- Crater Eddie
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Re: IPHONE SCREEN - 100X
Cool!
CE
CE
Olympus BH-2 / BHTU
LOMO BIOLAM L-2-2
LOMO POLAM L-213 / BIOLAM L-211 hybrid
LOMO Multiscope (Biolam)
Cameras: Canon T3i, Olympus E-P1 MFT, Amscope 3mp USB
LOMO BIOLAM L-2-2
LOMO POLAM L-213 / BIOLAM L-211 hybrid
LOMO Multiscope (Biolam)
Cameras: Canon T3i, Olympus E-P1 MFT, Amscope 3mp USB
Re: IPHONE SCREEN - 100X
Interesting. I take it that was the 'white' background screen you imaged?
Zeiss Standard WL (somewhat fashion challenged) & Wild M8
Olympus E-P2 (Micro Four Thirds Camera)
Olympus E-P2 (Micro Four Thirds Camera)
Re: IPHONE SCREEN - 100X
Good idea for a microscope object!
Compared to biological objects it is not so easy to find small man-made structures to look at under the microscope.
Old microchips are interesting, but it is difficult to remove the housing.
Compared to biological objects it is not so easy to find small man-made structures to look at under the microscope.
Old microchips are interesting, but it is difficult to remove the housing.
Re: IPHONE SCREEN - 100X
Jonny,
Please forgive me questioning, but I find myself confused by your stated magnification
... Could you kindly explain ?
The latest iPhones have a somewhat higher resolution; but on most models, the 'Retina display' has 326 pixels per inch
https://en.m.wikipedia.org/wiki/Retina_Display
and 326ppi equates to a pixel pitch of 78 microns
100x magnification would make an apparent pixel pitch of 7.8 mm
How are you specifying your magnification ?
Thanks
MichaelG.
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.
P.S. ... Yes I agree, these displays make interesting subjects
Here you can see an image of my iPod Touch '4th Generation' screen for comparison:
viewtopic.php?f=5&t=5732
This has the 326ppi resolution, but appears to be of different construction to that on the iPhone.
Please forgive me questioning, but I find myself confused by your stated magnification
... Could you kindly explain ?
The latest iPhones have a somewhat higher resolution; but on most models, the 'Retina display' has 326 pixels per inch
https://en.m.wikipedia.org/wiki/Retina_Display
and 326ppi equates to a pixel pitch of 78 microns
100x magnification would make an apparent pixel pitch of 7.8 mm
How are you specifying your magnification ?
Thanks
MichaelG.
.
.
P.S. ... Yes I agree, these displays make interesting subjects
Here you can see an image of my iPod Touch '4th Generation' screen for comparison:
viewtopic.php?f=5&t=5732
This has the 326ppi resolution, but appears to be of different construction to that on the iPhone.
Too many 'projects'
Re: IPHONE SCREEN - 100X
One can copy the link of the actual post in the topic:Here you can see an image of my iPod Touch '4th Generation' screen for comparison:
viewtopic.php?f=5&t=5732
viewtopic.php?f=5&t=5732#p51337
Zeiss Standard WL (somewhat fashion challenged) & Wild M8
Olympus E-P2 (Micro Four Thirds Camera)
Olympus E-P2 (Micro Four Thirds Camera)
Re: IPHONE SCREEN - 100X
Thanks for pointing-out that useful feature75RR wrote:One can copy the link of the actual post in the topic:Here you can see an image of my iPod Touch '4th Generation' screen for comparison:
viewtopic.php?f=5&t=5732
viewtopic.php?f=5&t=5732#p51337
[it is lacking from the other forum that I use]
MichaelG.
Too many 'projects'
Re: IPHONE SCREEN - 100X
I used the 10x objective and a 10x eye piece, so I calculated 100x total magnification.
I think it might be different sizes depending on electronics for example television, tablet or smartphones.
This was a iPhone 5s for your reference.
I think it might be different sizes depending on electronics for example television, tablet or smartphones.
This was a iPhone 5s for your reference.
Last edited by Jonnyvine on Mon Mar 19, 2018 1:39 pm, edited 1 time in total.
Re: IPHONE SCREEN - 100X
That seems perfectly logicalJonnyvine wrote:I used the 10x objective and a 10x eye piece, so I calculated 100x total magnification.
... I therefore remain utterly bewildered.
MichaelG.
Too many 'projects'
Re: IPHONE SCREEN - 100X
I see an image width of about 21 pixels and this means that at 326 dpi this is 1,6mm
Here is a formula for the calculation of the FOV:
https://www.microscopyu.com/microscopy- ... ld-of-view
With a field number of 16 and an objective of 10:1 this would fit. Looks perfectly normal to me.
Here is a formula for the calculation of the FOV:
https://www.microscopyu.com/microscopy- ... ld-of-view
With a field number of 16 and an objective of 10:1 this would fit. Looks perfectly normal to me.
Re: IPHONE SCREEN - 100X
Thanks for that link, MicroBobMicroBob wrote:I see an image width of about 21 pixels and this means that at 326 dpi this is 1,6mm
Here is a formula for the calculation of the FOV:
https://www.microscopyu.com/microscopy- ... ld-of-view
With a field number of 16 and an objective of 10:1 this would fit. Looks perfectly normal to me.
I have no argument against that logic, as a method of assessing the visual field of view:
But I am still struggling to see it as a calculation of photographic magnification
... Probably because I generally use 'eyepiece projection' onto the sensor
Presumably, Jonnyvine is using 'afocal' imaging ... in which case the optics of the camera should [in my opinion] be taken into account when stating magnification. Edit_2: Although, frankly, I do not know how this would be appropriately expressed.
Ultimately, of course; with both techniques we usually apply further magnification at the point of display.
Forgive me if I am making hard work of this !!
MichaelG.
.
.
Edit_1: For what it's worth ... Jonny's photo displays at a width of 160mm on my iPad Pro 9.7" screen, in landscape format.
So, for me, the final image is indeed at 100x magnification.
Too many 'projects'
Re: IPHONE SCREEN - 100X
Here is Leica's discussion of the issue:
https://www.leica-microsystems.com/scie ... ally-mean/
MichaelG.
https://www.leica-microsystems.com/scie ... ally-mean/
MichaelG.
Too many 'projects'
Re: IPHONE SCREEN - 100X
The given eyepiece magnification means that you see the image 10x enlarged compared to viewing it with the naked eye from a distance of 250mm. This is recorded by the camera. When you look at the photo from the right distance, this magnification is maintained.
Re: IPHONE SCREEN - 100X
I am evidently worrying too much.MicroBob wrote:The given eyepiece magnification means that you see the image 10x enlarged compared to viewing it with the naked eye from a distance of 250mm. This is recorded by the camera. When you look at the photo from the right distance, this magnification is maintained.
MichaelG.
Too many 'projects'
Re: IPHONE SCREEN - 100X
Just a note for everyone discussing what magnification it was taken at.
I just checked and realised my eye piece says "10xWF". So it's a 10x Wide Field (18mm) eye piece.
Is my total magnification still 100x?
I just checked and realised my eye piece says "10xWF". So it's a 10x Wide Field (18mm) eye piece.
Is my total magnification still 100x?
Re: IPHONE SCREEN - 100X
Visual magnification is still 100xJonnyvine wrote:Just a note for everyone discussing what magnification it was taken at.
I just checked and realised my eye piece says "10xWF". So it's a 10x Wide Field (18mm) eye piece.
Is my total magnification still 100x?
The photographic magnification also remains constant.
The Field of View is 'evident' [because we can see a croppped circular image]
As I think we have successfully clarified ... The final magnification is related to the display [or print] upon which the image is presented: This makes it impossible to state a definitive single figure without making reference to the display and the viewing distance.
MicroBob's point is entirely valid; i.e. It's the angle of view that matters.
MichaelG.
Too many 'projects'
Re: IPHONE SCREEN - 100X
I see, thanks for the point.