#lenses
Take care of those eyes! Getting checked, because I’m going to TRY contacts. SWIPE to see the galaxy nebula that is my healthy eye! So cool! There is a universe within you.
#vision #visionaryartist #optometry #lenses #contemporaryartist (at Optomitrist)
https://www.instagram.com/p/CJG1KbWAMQd/?igshid=1e2p8gkn53ue4
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Snowball-Ringby Mathew Irving
Via Flickr:
Photography by Matthew & Ariel Irving
Instagram: Holisticeight88
Jorel setting up the car rig - an Alexa-Mini on Movi Pro with Angenieux Optimo Zooms on the set of “Fifteen Years Later” written and directed by Manish Dayal.
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The latest batch of the incredible MS Optics Sonnetar 50mm 1.2 has arrived. Limited pieces available. Don’t miss out.
#msoptics #msoptical #lenses #leica #leicalens #leicacamera #customlens #japaneselens #cameralens #camera #filmcamera #camerazen #japancamerahunter (at Asagaya)
https://www.instagram.com/p/CdiDs1ErW-L/?igshid=NGJjMDIxMWI=
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One of the best lenses ever made. Period.
#lens #cameralens #planar #zeissplanar #planar45mm #contaxzeiss #lenses #japancamerahunter #kamerahunter #camerazen (at Asagaya)
https://www.instagram.com/p/Cdc9CxYrocN/?igshid=NGJjMDIxMWI=
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Exactly a year back on this very day, we explored how polarized sunglasses work and why Pilots prefer NOT to use them.
What about those with power prescriptions you ask ?
These days you can find a lot of people even with power prescriptions sporting glasses/lenses that turn dark when exposed to sunlight. These are known as Photochromic lenses.
Let’s do a quick demo:
This is a photochromic lens getting exposed to 395-400 nm light turning dark as a result.
How does it do that ?
To learn how this is achieved it must be understood that there are these class of reactions called ‘Reversible reactions’
A and B can react to form C and D or, in the reverse reaction, C and D can react to form A and B.
Example of reversible reaction of Bismuth Chloride
In the case of Bismuth Chloride, sunlight acts as a mediator to change it from a transparent solution to a dark colored solution and shaking in air brings it back.
In the case of Photochromic lenses, an organic dye is used that darkens under UV and lightens under its absence
Alternate reality: Photo-degradation
If you ever have had the unfortunate experience of leaving your plastic in the sun or wondered why the colors of your clothes fade away, then the technical term to express your misery is Photo-degradation.
This is the other extreme of a reversible reaction where UV light from the sun break break down the chemical bonds in the plastic and clothes (called chromophores) and eventually leads to fading of the colors in the object
The catch
As any user of one of these Photochromic lenses will tell you, there are some aspects of these lenses that still need to be improved
- The chemical reaction rate depends on the temperature of the surrounding. This means that on a sunny day if you are in a really warm climate, the lenses will adapt faster than if you live in a cold climate
- Most car windshields block UV light to some extent and therefore these lenses are not effective when you are inside the car.
- They do degrade after a while. Most of lenses do degrade having been used after a couple of years and need to be changed.
But having said that Photochromic lens are indeed a really cool piece of technology.
Have a great day!
Demonstrating Ray Diagrams
In this post, we demonstrate ray diagrams using an arrayof arrows drawn on the board as the object and the camera on your phone as the screen.
(i) Convex Lens : Arrows on the board are placed inside the focal length of the lens -> Magnfied Erect image
(ii) Convex Lens : Arrows on the board are placed outside the focal length of the lens -> Inverted image
(iii) Concave Lens: Irrespective of whether you place the arrows inside or outside the focal length, you get an erect image.
(iv) Convex Mirror
(v) Concave Mirror
EDIT: Edited post to include concave and convex mirrors
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been BUSTING my crippled ASSS
I’m super happy that I finally have
all of these new installation piece (sun)GLASSES. ALL Under $20
️ @ LEXATERRESTRIAL.COM
Architecturally Halycon
BiONiC eyewear ️
w/ bold embellished Lining & Framing
LexaTerrestrial.com/collections
via Electric Dollhouse
#highfashion #futuristicfashion #sunglasses #cheapaccessories #giftsforher #giftsforhim #glasses #eyewear #lenses #shades #retrofashion #retropop #unique #uniquefashion #newyorkfashionweek #designer #supreme #discounts #womensaccessories #menswear
https://www.instagram.com/p/B2g5kAjhYGP/?igshid=1zp4w8o9cci9
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Anonimux - Eyes N10
15 Swatches
Male/Female
All Ages
Face paint category
BGC
HQ always
Thanks to all CC creators
Please
Don’t claim as yours
Don’t re-upload this file
Download(TSR)
Genshin Impact Make Up Set
Lenses N7 - Genshin Impact
- hq compatible
- base game compatible
- make up sliders compatible
- 10 swatches
- face paint category
- with and without sclera
Eyeshadows N1 - Asian
- hq compatible
- base game compatible
- make up sliders compatible
- 10 swatches
- overlay and non-overlay
Eyeliner N1 - Asian
- hq compatible
- base game compatible
- make up sliders compatible
- 10 swatches
Download:simfileshare/mediafire
Preview was done with HQ
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