Always wondered why lens are so expensive?
I found this to be very educational. It looks like a really complicated process to make a lens. Anyone know what brand is being made?
EOS 7D|10-22|17-55 2.8 IS|50 1.4|85 1.8|70-200 f4L IS|580EX II|2x YN560|190CXPRO3+496RC2
Last edited by lsisaxon; 28th January 2008 at 05:34 PM.
Great and informative find! Thanks for sharing!!
I've new sense of respect for my 1755 and the lens makers
Check out how Canon lens are made, via machines
Last edited by Parka; 28th January 2008 at 06:26 PM.
Great Video.... thxs for sharing.
But I'm surpise that they don't use 'clean room' condition when assembling the lens
Scuba & Father... For Life
thanks for sharing!
Last edited by lsisaxon; 29th January 2008 at 04:44 PM.
it looked kind'a low tech to me. Iirc, the individual lens element will need to undergo controlled cooling, ie allowed to cool down XX degree every day from red hot to ensure superb optical quality.
But I think the documentary looked quite old liao. Must have been shot decades ago
there was a Kurosawa film made in WWII involving a lens factory ("Ichiban Utsukushiku" or "The Most Beautiful"), ... they were basically using the same process as well...
JML Optical served mainly domestic (in the US, with clients such as Fuji Xerox, Eastman Kodak, General Electric, Hughes Aerospace and 3M) and international OEM customers in the commercial and government sectors with high quality optics in prototype through high volume quantities.
Last edited by photobum; 30th January 2008 at 10:22 PM.