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Old Oct 11, 2010, 12:03 PM   #1
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Default Hey Nikon Dudes...

Tamron is soon to release the 70-300mm VC USP Di SP for Canon cameras. How does it perform for Nikon bodies? Any reviews you can point me to?

Thanks

Jim, a Canon owner
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Old Oct 11, 2010, 12:17 PM   #2
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No one has published any objective test results yet, but the subjective reports have been quite favorable.
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Old Oct 12, 2010, 2:48 AM   #3
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Hi guys, I noticed there are several codes on Tamron and Sigma lenses but couldn't figure what they stand for

Anyone can shed some light?

Tamron AF 18-200mm f/3.5-6.3 XR Di II LD IF NIKON
Sigma 18-200 mm f/3.5-6.3 II DC Lens f/Nikon
Nikon 18-200mm AF-S DX VR IF-ED

Thanks in advance!
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Old Oct 12, 2010, 7:57 AM   #4
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Quote:
Originally Posted by LGWGM View Post
Hi guys, I noticed there are several codes on Tamron and Sigma lenses but couldn't figure what they stand for

Anyone can shed some light?

Tamron AF 18-200mm f/3.5-6.3 XR Di II LD IF NIKON
Sigma 18-200 mm f/3.5-6.3 II DC Lens f/Nikon
Nikon 18-200mm AF-S DX VR IF-ED
  • Tamron
    • XR - Extra Refractive Index glass - The lens has at least one optical element that is made of special glass that has a very high index of refraction.
    • Di - Digitally Integrated - The lens is designed to work well with dSLRs which have image sensors that are reflective than film.
    • Di II - Exclucively for use on dSLRs with the smaller APS-C size image sensors. Will cause severe vignetting on 'Full Frame' dSLRs.
    • LD - Low Dispertion - The lens has at least one optical element that is made of special Low Dispersion Glass.
    • IF - Internal Focusing - Internal optical elements shift within the barrel to focus the image. In that way, the length of the barrel does not change, but at longer focal lengths, as you focus on closer objects, the angle of view will change slightly.
    • VC - Vibration Compensation - Optical image stabilization
    • Aspherical - The lens has at least one optical element that is not spherical.
  • Sigma
    • DC - Exclucively for use on dSLRs with the smaller APS-C size image sensors.
    • OS - Optically Stabilized
  • Nikon
    • DX - Exclucively for use on dSLRs with the smaller APS-C size image sensors.
    • IF - Internal Focusing
    • ED - Extra low Dispersion - The lens has at least one optical element that is made of special Extra low Dispersion glass.
    • VR - Vibration Reduction (Optical image stabilization)
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