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In terms of peripheral distortion, what's the difference between Essilor's 360 SV lens design and bi-aspheric lenses like Hoya's ID SV, Nikon's See Max SV, and Seiko's AZ SV lenses? Should Essilor 360 be characterized as bi-aspheric like other lenses explicitly are, or is it just a process applied to an aspheric lens to achieve a result similar to a bi-aspheric lens? If Essilor 360 is just a design process, than is it possible (and preferable) to get an Essilor 360 SV with a bi-aspheric lens? Not sure if Essilor makes a bi-aspheric lens, but I've heard the Lineis 1.74 is, can anyone confirm this? And finally, in terms of peripheral distortion, which solution achieves a better result, Essilor, Hoya, Nikon, Seiko, or another manufacturer? In terms of peripheral distortion, what's the difference between Essilor's 360 SV lens design and bi-aspheric lenses like Hoya's ID SV, Nikon's See Max SV, and Seiko's AZ SV lenses? Should Essilor 360 be characterized as bi-aspheric like other lenses explicitly are, or is it just a process applied to an aspheric lens to achieve a result similar to a bi-aspheric lens? If Essilor 360 is just a design process, than is it possible (and preferable) to get an Essilor 360 SV with a bi-aspheric lens? Not sure if Essilor makes a bi-aspheric lens, but I've heard the Lineis 1.74 is, can anyone confirm this? And finally, in terms of peripheral distortion, which solution achieves a better result, Essilor, Hoya, Nikon, Seiko, or another manufacturer? There is no advantage of Aspheric only compensations being split front to back just on its own.



In case you do not know they play word games all the time. Why does the lab manager at the lab say it's not a true freeform? Many people believe that if it does not have POW compensation individually measured its not free-form.In general they apply an aspheric symmetrical front surface to compensate only for sphere power, and use an atoric compensation on the back for cyl power.It allows for few molds in cast lenses I assume, but its a manufacturing improvement not an optical one.Appreciate to have an OFFICIAL thread for the NEW MANILA INTERNATIONAL AIRPORT.

Here's the link from the official gazzette We use cookies to improve your experience on this website and so that ads you see online can be tailored to your online browsing interests.

But there is no advantage of splitting that per se between both, since they stack.


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