Canon 50mm 1.8 vs 1.4

Discussion in 'Photography Equipment & Products' started by keith204, Aug 28, 2007.

  1. keith204

    keith204 No longer a newbie, moving up!

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    I have the 1.8. If I were to go with the 1.4 version, how beneficial would that be?

    Shutter speed, here... I just plugged in my 50mm 1.8, and in the current lighting situations (morning, haven't turned on lights yet) here are my tests.

    F/5.6: 1/4
    F/4.0: 1/8
    F/2.8: 1/15
    F/1.8: 1/60

    So, basically I'm wanting to fill in a couple blanks:

    F/1.6: ___
    F/1.4: ___

    Any ideas what I'd be looking at here? I mean, will 1.4 really make a difference?
     
  2. Don Simon

    Don Simon TPF Noob!

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    The difference between f/1.4 and f/1.8 in terms of increasing available shutter speeds is not much.

    With the f/1.4 however you are also paying for much better build quality, and generally improved optical quality particularly 'bokeh' and highlights (with the f/1.4 having more aperture blades forming a more circular pattern).

    My advice would be not to buy the f/1.4 over the f/1.8 for the difference in aperture, but do consider it if you want a better lens overall and can comfortably afford it. If you aren't much bothered by the shape of specular highlights, and don't mind having a mostly plastic lens, then optically the f/1.8 is very good anyway as you no doubt know.
     
  3. Big Mike

    Big Mike I am Big, I am Mike Staff Member Supporting Member

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    The difference between F1.4 and F1.8 is just less than one stop, so your shutter speed would be just less than twice as fast....probably from 1/60 to 1/90. That is maybe a noticeable difference but not a significant difference.

    As mentioned, the big difference between the two lenses is the build quality.

    This was, a few years ago, probably one of the most asked questions on photography forums. Try a search, you will get many many opinions.
     
  4. xfloggingkylex

    xfloggingkylex TPF Noob!

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    If you already have the 1.8 my opinion is that you dont need the 1.4. the money would be better spent to complete another section of your kit (if you are missing anything that is). But, if there isnt anything else that you could see spending your money on, the 1.4 is a nice upgrade in quality... it feels tougher and is all around great to use.
     
  5. keith204

    keith204 No longer a newbie, moving up!

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    Thanks everyone, that's just what I was wanting to hear.

    I like the 1.8 a lot, because I can take pictures when nobody else can :).

    Photography for me is an expensive toy, and I am fine with that...to an extent. Eventually, I'd like to see a couple other 1.8 primes in my bag (28 and 85). I'll probably just put that extra money towards one of those. I could definitely rationalize the 85 1.8 for the race track.
     
  6. droyz2000

    droyz2000 TPF Noob!

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    I would suggest the 1.4 for Canon for the reasons stated before, the build quality. The 1.4 is built far better than the 1.8.
     
  7. 1.4!
     
  8. usayit

    usayit No longer a newbie, moving up!

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    Both are great lenses.... let your budget decide.

    50mm f1.8 - HIGH bang for the buck
    The extra cash gets you better build quality and more aperture blades.
     

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