Canon - Fluorite Lenses The Ultimate High Performance Lenses

Fluorite is the ideal mineral for correcting chromatic aberration. However, no naturally occurring fluorite can meet all the requirements for a camera lens. Based on our belief in making use of its own abilities to create whatever is necessary, Canon overcame the numerous barriers that stood before us to successfully realize the mass production of fluorite lenses. Canon is now the only manufacturer to incorporate fluorite in its auto-focus lenses for SLR cameras.
Created : September 2011

[@CarlosGarcia-lh5jh]

I'm a canonist for 40 years and we all know that is Asahi Corp. who provides the fluoride and lens glass to Canon almost ready to use..your comments will be appreciated. Brgds+

[@chrishoesel]

I read somewhere that each one of those fluorite elements has to be "grown" and that it takes 6 months to create 1 element. However the video shows them growing the crystal similar to the way a silicon crystal is grown for chip wafers. Anyone know? I find it fascinating.

[@osanaisamyth5591]

There is a similar process in making synthetic quartz , they grow their own crystals for production and control impurities in the material

[@Rich-hy2ey]

Fluoro-crown glass or "ED glass (a mixture of conventional glasses and fluorite) improved durability, hardness, ease of polishing, but they still have not matched fluorite for low-dispersion.

[@Tommo020788]

Wtf? They are showcasing a high quality image lens on a 320p video?....🤨

[@MindbodyMedic]

you need to upgrade your eyes to 4k

[@suzesiviter6083]

Thats why I always clean my lenses with toothpaste, sure that's Flouride not Flourite but its only a letter out.

[@victorpiedra6742]

WTF o.0?, ¿Are you serious? Toothpaste is a polisher, if you put it on a lens, you will gradually wear out its surface, and of course you will wipe out the surface coatings that the manufacturer takes so much work to create.

[@ThatOpalGuy]

Try fluorine next time.

[@suzesiviter6083]

@@ThatOpalGuy Yeah I heard that cleans anything)

[@lightqueen2323]

Fascinating!!! Can we use it with astronomy?

[@alexmirza5210]

Yes. At very high cost for amateurs.

[@salimkumar1414]

Thanks

[@asaaavologs3749]

Nice job

[@trident8872]

Kowa also uses Fluorite in their spotting scope an binoculars

[@ocelotMartinez]

Do they use these fluorite lenses to make astronomy binoculars?

[@alexmirza5210]

There was only one (Japanese) model that used fluorite in the objectives and that was the Takahashi 22x60. But a few top spotting scopes now use it.

[@palojujaisrirampssppp590]

🙏🌹🇮🇳 PSSPPP 🇮🇳 PALOJU JAI SRIRAM 🇮🇳🌹🙏

[@user-ze5yi8mi1p]

verygood

[@kaos42ze]

who else uses DO optics now besides Canon ?

[@nazrimohamad9508]

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!!

[@alexmirza5210]

Meantime now finally competitor has caught up.

[@nilminisrimali9245]

Aththa

[@user-wb4pw8rz6r]

We are the optical lens factory,looking for buyers.