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Thread: 3rd party 18-200s

  1. #1

    Default 3rd party 18-200s

    why are they so cheap? Compared to Nikon, the sigma is half the price
    Does this mean....VR and slighty bigger max apperture costs $600?

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    Default Re: 3rd party 18-200s

    Quote Originally Posted by aq12345 View Post
    why are they so cheap? Compared to Nikon, the sigma is half the price
    Does this mean....VR and slighty bigger max apperture costs $600?
    Don't forget pic quality and built too.
    Canon EOS 5D, 24-70 f/4 L IS, 50 f/1.2 L, 70-300 f/4-5.6 L IS, 600EX-RT. Sigma 12-24 f/4.5-5.6 EX.

  3. #3

    Default Re: 3rd party 18-200s

    if i rmb correctly, nikon's 18-200 is a VR version, hence the extra cost.
    Canon 400D:18-55:75-300:50F1.8:tokina 28-70F2.8:
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    Default Re: 3rd party 18-200s

    2 more point... its a Nikkor and also SWM equipped.
    anyway y surprise by that? if you do compare the sigma 18-50, tamron 17-50, nikkor 17-55. the nikkor gives a pretty useless 5mm extra and SWM but cost nearly 3.5x that of the tamron...
    Last edited by ExplorerZ; 9th April 2007 at 11:25 PM.

  5. #5

    Default Re: 3rd party 18-200s

    Image quality and build quality - a world of a differemce.

    VR is also really, really useful.

    finally, who would want to shoot at 6.3 at 200mm? 5.6 is really dark already and without VR too! You will get really difficult to control shots!

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    Default Re: 3rd party 18-200s

    the optics differ a lot.

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    Default Re: 3rd party 18-200s

    never look at it based on specs alone.. if not anyone can make their own lens and say they got a winner with ultra-zoom and big aperture...

    alot of other things go into it.. like optical quality (type of lenses, how well they perform, flare resistance, among others), how well the auto-focus works, sharpness, resolving power, handling, build, etc... VR is very useful esp since the lens goes into the telephoto range... and VR systems are not cheap, just like the Canon ones.. so u have to expect this kind of price difference...

    in short.. never look at it based on numbers alone.. usually what u pay is what u get...
    Canon EOS 30D w/ grip 580EX, Tamron 28-75mm f/2.8, EF-S 10-22mm
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  8. #8

    Default Re: 3rd party 18-200s

    Well...ok, but does the build quality differ by miles?

  9. #9

    Default Re: 3rd party 18-200s

    Quote Originally Posted by aq12345 View Post
    Well...ok, but does the build quality differ by miles?
    build quality not really differ by miles, in fact 3rd party makers like tokina make SUPERB BUILT lens... by superb it means it can match or win nikon or canon.

    99% of the time, the MAIN difference is in the quality of the image. somehow canon and nikon got some pretty good chemical or watever that they use to make their lens so that they give very good colour, contrast and sharpness.

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    Default Re: 3rd party 18-200s

    For Canon, it's the UD and fluorite in the Ls. Nikon ones should be their ED.
    Canon EOS 5D, 24-70 f/4 L IS, 50 f/1.2 L, 70-300 f/4-5.6 L IS, 600EX-RT. Sigma 12-24 f/4.5-5.6 EX.

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    Default Re: 3rd party 18-200s

    Quote Originally Posted by Snoweagle View Post
    For Canon, it's the UD and fluorite in the Ls. Nikon ones should be their ED.
    actually its still the same... sigma got their APO, tokina i dono, tamron got LD... its just that people always mention the good about N/C but not 3rd party

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    Default Re: 3rd party 18-200s

    Quote Originally Posted by devilry View Post
    build quality not really differ by miles, in fact 3rd party makers like tokina make SUPERB BUILT lens... by superb it means it can match or win nikon or canon.

    99% of the time, the MAIN difference is in the quality of the image. somehow canon and nikon got some pretty good chemical or watever that they use to make their lens so that they give very good colour, contrast and sharpness.
    Agree with what u mentioned about Tokina. Although i even haven't touch one yet, I am really impressed by the physical outlook of Tokina lenses. If they bother to have such nice, solid design, I think their optics must be good too...

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    Default Re: 3rd party 18-200s

    Quote Originally Posted by cichlid View Post
    Agree with what u mentioned about Tokina. Although i even haven't touch one yet, I am really impressed by the physical outlook of Tokina lenses. If they bother to have such nice, solid design, I think their optics must be good too...
    actually going by today, 3rd party optic ain't really inferior to the "original" equiv... in fact some even surpass tho some are not as good...

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    Default Re: 3rd party 18-200s

    Quote Originally Posted by ExplorerZ View Post
    actually its still the same... sigma got their APO, tokina i dono, tamron got LD... its just that people always mention the good about N/C but not 3rd party
    Honestly speaking i do not find Sigma's APO fantastic. Tamron's LD is not bad but still lacks the quality from Canon and Nikon.
    Canon EOS 5D, 24-70 f/4 L IS, 50 f/1.2 L, 70-300 f/4-5.6 L IS, 600EX-RT. Sigma 12-24 f/4.5-5.6 EX.

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    Default Re: 3rd party 18-200s

    Quote Originally Posted by posez View Post
    Image quality and build quality - a world of a differemce.

    VR is also really, really useful.

    finally, who would want to shoot at 6.3 at 200mm? 5.6 is really dark already and without VR too! You will get really difficult to control shots!
    i second tt... the Nikon VR is useful and at f6.3... dark...

    so if you can spare the molah... get the Nikon one

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    Default Re: 3rd party 18-200s

    Quote Originally Posted by Snoweagle View Post
    Honestly speaking i do not find Sigma's APO fantastic. Tamron's LD is not bad but still lacks the quality from Canon and Nikon.
    it depends alot on the lens, there are some APO lens that are superb like 300-800, 70-300, 50-500, 50-150... etc. all of them are APO lenses and some of the quality even surpass nikon/canon equiv if there is any...
    Last edited by ExplorerZ; 11th April 2007 at 09:07 AM.

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    Senior Member cichlid's Avatar
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    Default Re: 3rd party 18-200s

    Quote Originally Posted by ExplorerZ View Post
    it depends alot on the lens, there are some APO lens that are superb like 300-800, 70-300, 50-500, 50-150... etc. all of them are APO lenses and some of the quality even supass nikon/canon equiv if there is any...
    yah, check out the pics posted by xcpictorial at bns!

  18. #18

    Default Re: 3rd party 18-200s

    Check out the interesting comparison on the optics here: http://www.cameralabs.com/reviews/Ni...mm/page4.shtml

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    Default Re: 3rd party 18-200s

    Quote Originally Posted by cichlid View Post
    yah, check out the pics posted by xcpictorial at bns!
    Dun forget there's something called Photoshop. But still, it all depends on the individual cos diff pple got diff likings.
    Last edited by Snoweagle; 11th April 2007 at 08:42 PM.
    Canon EOS 5D, 24-70 f/4 L IS, 50 f/1.2 L, 70-300 f/4-5.6 L IS, 600EX-RT. Sigma 12-24 f/4.5-5.6 EX.

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    Default Re: 3rd party 18-200s

    Quote Originally Posted by aq12345 View Post
    why are they so cheap? Compared to Nikon, the sigma is half the price
    Does this mean....VR and slighty bigger max apperture costs $600?
    the VR is VR II i think... new technology sure will mean higher price... further more it's native brand mah so you paying for the brand too...

    also i heard original brand still at better prices later than 3rd party lens

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