Hi index photochromics

[mma]

what PAL's are available in 1.74 photochromic?

thanks!

[Fezz]

The LensGuru is your friend! I don't see one listed, but maybe I skimmed it too fast!


www.thelensguru.com

:cheers::cheers::cheers:

[bob_f_aboc]

The LensGuru is your friend! I don't see one listed, but maybe I skimmed it too fast!


www.thelensguru.com

:cheers::cheers::cheers:

According to my vast resources at both HOYA and Essilor (one rep each), there are no 1.7 or 1.74 photochromic lenses available in the US.

[Fezz]

How about using those vast resources and checking to see if they are available in Canada...where the OP posted from?

[bob_f_aboc]

How about using those vast resources and checking to see if they are available in Canada...where the OP posted from?

That was the reason I specified US. My powers are no good north of the border. Too much Molson years back.

[amandaheger]

Only available in 1.67 Photochromic

[Jacqui]

Could do a freeform :D

[For-Life]

Yeah, no PALs in 1.74 in Canada

[RT]

Could do a freeform

Only if there were a 1.74 front-side spherical photochromic...

I believe that the highest index photochromic available is still 1.67.

[Jim Schafer]

This thread is a good start....if ecp's and labs talk to their lens manufacturing reps...it will come....

Once 1.74 ultra high index lens material is established as a clear lens with a few percent share of the market (it is still a relatively new kid on the block for now)....the manufacturers will then produce a photochromic product. It helps a lot if ecp's and labs bubble up the requests to their favorite LM's

I believe this new material is perfect to fast track straight into direct surfacing. No need to produce a bevy of PALS when a high quality spherical SFSV will suffice. Then as Rick stated, a photochromic blank will be available.

Jim

[For-Life]

This thread is a good start....if ecp's and labs talk to their lens manufacturing reps...it will come....

Once 1.74 ultra high index lens material is established as a clear lens with a few percent share of the market (it is still a relatively new kid on the block for now)....the manufacturers will then produce a photochromic product. It helps a lot if ecp's and labs bubble up the requests to their favorite LM's

I believe this new material is perfect to fast track straight into direct surfacing. No need to produce a bevy of PALS when a high quality spherical SFSV will suffice. Then as Rick stated, a photochromic blank will be available.

Jim

thing is, 1.74 has been available in Canada for well over 5 years now, I have probably done less than 5 pairs. Of course, we get 1.67 at 1.0mm centre here.