No regrets for choosing Canon Lens

[ants]

This is how they process and manufacture the lens.. check this out guys

http://www.canon.com/camera-museum/t...t/f_index.html

[westwood_13]

The video on the material processing process is AMAZING!

[ants]

Yeah.. its really amazing how the japanese do things. Their manufacturing plants is really clean i mean CLEAN!

[Pete LSD]

Lens manufacturing reminds me of the textiles industry . . .

[red00ecstrat]

Hehehe.....now I am wondering how Leica manufacture their optical lenses!

[kwun]

Hehehe.....now I am wondering how Leica manufacture their optical lenses!

i bet they do it by hand and sandpaper, otherwise why would they cost so much?!

[Pete LSD]

Or it is just a show. Actual production may be 100% automated. ha ha

i bet they do it by hand and sandpaper, otherwise why would they cost so much?!

[DinkAlot]

Lens manufacturing reminds me of the textiles industry . . .

So is that good or bad?

[DinkAlot]

i bet they do it by hand and sandpaper, otherwise why would they cost so much?!

And the sand paper is made with diamond dust.

[DinkAlot]

Awesome find! Thanks!

[Bobatea]

This is why I love my Canon . And also why some people I know are switching to the Canon

Yeah.. its really amazing how the japanese do things. Their manufacturing plants is really clean i mean CLEAN!

It's amazing how clean a lot of things are here in this country... but for a second there I thought I saw a piece of dust float around during the assembly process . Just my imagination

[taneepak]

There are poor Canon lenses and there are excellent Canon lenses that go through the same Canon factory, and herein lies the problem. In contrast there are no poor Zeiss or Leitz lenses because they are all consistently excellent.
Lens quality depends on the type of glass used, especially glasses of very high index with much reduced or even anomalous color dispersion, its design (which uses a super fast computer), and the most important of them all the mounting of the many elements into the assembled lens and the compromises one has to make for a singles lens reflex camera (this is why a quality rangefinder camera like the Leica M will always outperform its Leica single lens reflex camera). A slr, forced to use more unsymmetric lens designs by its mirror, auto-diaphram, auto-focus, etc., compromises the design of the lens whereas a rangefinder camera is a lens designer's dream to designing a perfect lens.
As a tip to whether you have a good modern lens or not, just go for weight, because high index glasses are very, very heavy, and they in turn will require a strong and heavier focusing mount.
Basically, it is the combination of both optical quality and mechanical perfection which determines lens quality. Design helps but is quite futile with low index glasses. High index glasses are very, very expensive and very, very heavy which require that their elements be solidly mounted.

[DinkAlot]

There are poor Canon lenses and there are excellent Canon lenses that go through the same Canon factory, and herein lies the problem.

Well, I don't think there are any "poor" Canon lenses. Marginal yes, but I haven't seen any "poor" lenses.

[kwun]

In contrast there are no poor Zeiss or Leitz lenses because they are all consistently excellent.

[DinkAlot]

LOL! Now that's funny.

I bet Eepak meant Leica lenses for Leica cameras.

[kwun]

on the serious side. yes, Leitz lens for Leica are top quality, but it is also the case that they are really expensive, the cheapest one starts at around US$800 and goes up to astronomical prices. you get what you pay for, i guess.

[taneepak]

I was referring to German made Leitz and Zeiss lenses, not those made in Japan by Panasonic and Sony, respectively, that for obvious reasons do not use high index glasses or high precision lens mounts.