Canon 28mm f1.8 or Sigma 30mm f1.4

Discussion in 'Photography & Video' started by michaeliam, Oct 6, 2009.

  1. michaeliam

    michaeliam Member

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    I do like the extra stops on the f1.4 but am looking for something with good contrast and IQ.

    Does anyone have experience using both these lenses?

    Or can anyone comment on one or the other?

    I'd love to hear your feedback.
     
  2. lovecolt

    lovecolt Member

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    only ever had the Sigma and they have been great. Everything has been great for this little baby, except for some focus shifting issues. But it might just be a user error.

    Before i bought the sigma, i have gone through varies reviews for varies primes and its been noted that the Sigma simply kills the Canon one.
     
  3. NismoR31

    NismoR31 Member

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    haha i started this exact thread a few months ago
    http://forums.overclockers.com.au/showthread.php?t=798058

    i ended up choosing the sigma, and it had taken the spot of my favourite lens within a few days of owning it.

    IQ is awesome. It's unbelievably sharp, great contrast. The only bad thing i can say about it is when in extremely low light the AF can hunt a little, but that's easily resolved by focusing on something with a bit of contrast, or using a speedlite.

    a few example shots
    http://www.flickr.com/photos/nismor31/3949670731/in/set-72157622435677928/
    http://www.flickr.com/photos/nismor31/3916574519/in/set-72157622359875128/
    http://www.flickr.com/photos/nismor31/sets/72157622301863986/with/3899987822/
    http://www.flickr.com/photos/nismor31/sets/72157622281818867/
     
  4. kit_frisk

    kit_frisk Member

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    I have the Canon 28mm 1.8, (its actually for sale in the market place forum)
    I have yet to test it on my FF, but on the 40D its a 44mm equivalent almost 50mm.
    IQ on wide open, its something you would expect, a bit blurry, and would need to be stopped on to 2.2 -2.8. contrast on the other hand is acceptible. I have taken some shots without having done any photoshopping.
    This was done on the 28mm on the 40d. I haven't been taking much shots with it for a while

    [​IMG]

    I can probably do some tests for you when I have time or get home.
     
  5. NismoR31

    NismoR31 Member

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    forgot to mention IQ even at 1.4 on the sigma is way better than 1.8 on the canon (according to a bunch of comparison reviews i've read). The sigma at 1.4 is sharp, at 1.6 super sharp & beyond that so sharp it could cut diamonds. :p
     
  6. jjphoto

    jjphoto Member

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    I've told you a thousand million times, don't exagerate...
     
  7. iXeR0

    iXeR0 Member

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    Never used the Canon but I've had the Sigma in Nikon and Pentax mounts and it gets the thumbs up from me. Best if you buy in person though, so you can test it out, as I had one that backfocused.
     
  8. NismoR31

    NismoR31 Member

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    i'm quite serious when i say it's unfrickinbelievably sharp.
     
  9. luztra

    luztra Member

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    I have the canon 28 1.8. I went for it over the sigma 30 1.4 as I feel the colour is more accurate. This is just my opinion.
     
  10. triggerpeg

    triggerpeg Member

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    Dunno about the 30mm 1.8. But the Sigma 20mm 1.8 was a piece of junk.
    First i thought it was the sigma lottery, but after a few copies i realised it was the lens. Hope the 30mm is better
     
  11. SyN

    SyN Member

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    the sigma 20mm 1.8 and 30mm 1.8 is a totally different lens
     
  12. triggerpeg

    triggerpeg Member

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    Lets hope so. Cause I dont think it can get much worse then the 20mm
     
  13. SyN

    SyN Member

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    no need to hope, they are different

    different focal length, different focusing system, different optical construction, different format all together
    apart from both being sigma (which haters like to hate on) they have nothing in common
     
    Last edited: Oct 8, 2009

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