Sigma Wide-Angles

Discussion in 'Photography Equipment & Products' started by Trevor Harris, Oct 22, 2015.

  1. Trevor Harris

    Trevor Harris TPF Noob!

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    Hey all,

    I'm a bit confused by these two lenses. A friend asked me why was one double the other, and at first glance I was going to give her the "oh, well, one is variable aperture and the other isn't, the latter being better quality, yadda yadda yadda"... but then when I clicked the links, the variable aperture one is the more expensive! So what am I missing?

    Thanks!

    Trevor

    SIGMA 12-24MM F4.5-5.6 II DG CANON AF1224HC

    SIGMA EX 10-20MM F3.5 DC HSM CANON EX1020HC


     
  2. jcdeboever

    jcdeboever TPF Supporters Supporting Member

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    Just a guess but I assume the more expensive one has more glass in it? It is heavier, more elements and groups.

    Sent from my XT1254 using Tapatalk
     
  3. Alexr25

    Alexr25 No longer a newbie, moving up!

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    The DG lens is for full frame and crop sensor cameras. The DC lens is for crop sensor only so it is made with smaller chunks of glass that are easier to grind and hence cheaper to make.
     
  4. Trevor Harris

    Trevor Harris TPF Noob!

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    That's it!!! Thanks!!
     
  5. DB_Cro

    DB_Cro No longer a newbie, moving up!

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    Yeah, you got your answer, the 12-24 is a FF lens, but you're also missing a much cheaper 10-20 version with variable
    apertura also for crop sensors on your list.
     

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