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  1. #1
    Regular Member ants's Avatar
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    Default No regrets for choosing Canon Lens

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

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

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    The video on the material processing process is AMAZING!

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    Regular Member ants's Avatar
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    Yeah.. its really amazing how the japanese do things. Their manufacturing plants is really clean i mean CLEAN!

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    Lens manufacturing reminds me of the textiles industry . . .

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    Regular Member red00ecstrat's Avatar
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    Hehehe.....now I am wondering how Leica manufacture their optical lenses!

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    Administrator kwun's Avatar
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    Quote Originally Posted by red00ecstrat
    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?!

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

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

  8. #8
    Regular Member DinkAlot's Avatar
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    Quote Originally Posted by Pete LSD
    Lens manufacturing reminds me of the textiles industry . . .
    So is that good or bad?

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    Regular Member DinkAlot's Avatar
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    Quote Originally Posted by kwun
    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.

  10. #10
    Regular Member DinkAlot's Avatar
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    Awesome find! Thanks!

  11. #11
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    This is why I love my Canon . And also why some people I know are switching to the Canon

    Quote Originally Posted by ants
    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

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    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.

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    Regular Member DinkAlot's Avatar
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    Quote Originally Posted by taneepak
    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.

  14. #14
    Administrator kwun's Avatar
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    Quote Originally Posted by taneepak
    In contrast there are no poor Zeiss or Leitz lenses because they are all consistently excellent.

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    Regular Member DinkAlot's Avatar
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    LOL! Now that's funny.

    I bet Eepak meant Leica lenses for Leica cameras.

    Quote Originally Posted by kwun

  16. #16
    Administrator kwun's Avatar
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    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.

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    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.

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