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+
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.
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.
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.
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+
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.
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.
There is a similar process in making synthetic quartz , they grow their own crystals for production and control impurities in the material
Kowa also uses Fluorite in their spotting scope an binoculars
Wtf? They are showcasing a high quality image lens on a 320p video?....🤨
you need to upgrade your eyes to 4k
Fascinating!!! Can we use it with astronomy?
Yes. At very high cost for amateurs.
🙏🌹🇮🇳 PSSPPP 🇮🇳 PALOJU JAI SRIRAM 🇮🇳🌹🙏
Thats why I always clean my lenses with toothpaste, sure that's Flouride not Flourite but its only a letter out.
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.
Try fluorine next time.
@@ThatOpalGuy Yeah I heard that cleans anything)
Do they use these fluorite lenses to make astronomy binoculars?
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.
who else uses DO optics now besides Canon ?
Nice job
Thanks
verygood
Aththa
We are the optical lens factory,looking for buyers.
Meantime now finally competitor has caught up.