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Sigma 56mm f1.4 DC DN

Discussion in 'Native Lenses' started by swifty, Dec 6, 2018 at 9:33 PM.

  1. swifty

    swifty Mu-43 Regular

    53
    Jan 30, 2013
    Singapore
    Dave
    Just got my hands on one.
    A quick size comparison against the Olympus 45mm f/1.8.
    i-mpXf8JQ-L.jpg
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    i-X5N6fWb-L.jpg
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    Any users, please feel free to add to this thread with your findings on this lens.
     
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    • Informative Informative x 2
  2. Enoch

    Enoch Mu-43 Regular Subscribing Member

    68
    Jul 10, 2015
    Enoch Haven
    I am thinking about getting this and selling my 45 and 75 since it is in the middle of them both and gathers more light. I would like to read more reviews first though.
     
    • Agree Agree x 1
  3. Christop82

    Christop82 Mu-43 Top Veteran

    986
    Sep 10, 2016
    The 75 will be nearly identical in light gathering and dof, just a bit longer focal length.
     
  4. swifty

    swifty Mu-43 Regular

    53
    Jan 30, 2013
    Singapore
    Dave
    True that. I think the 56/1.4 is closer to the 75/1.8 than the 45/1.8.
    I don’t own the 75/1.8 anymore so I can’t do a comparison but at the time I felt it was a bit long to use indoors most of the time. I think the 56 will be a bit more user friendly indoors.
    The 45/1.8 is tiny compared to the 56/1.4 although the 56 isn’t large at all imo. Different animal so some users might find room in their bag for both.
     
  5. Wow that's a thick lens cap!

    I'd like to know how you get on with flare susceptibility.
     
  6. swifty

    swifty Mu-43 Regular

    53
    Jan 30, 2013
    Singapore
    Dave
    Will do, once I get an opportunity to shoot in the sun. Right now it’s overcast and rainy. Monsoon season unfortunately.
     
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  7. BPCS

    BPCS Mu-43 Regular

    36
    Oct 15, 2017
    I see u r in Sydney. I pre-ordered from Digidirect online from Adelaide but still waiting. May I ask who supplied you?
     
  8. swifty

    swifty Mu-43 Regular

    53
    Jan 30, 2013
    Singapore
    Dave
    Oh sorry, I haven’t updated my profile in a while. Used to be in Sydney but in Singapore at the moment.
     
    • Like Like x 1
  9. Hmm old school thick rear cap too... why Sigma why? They could have made it more carry friendly by using more typical slim m4/3 caps on both ends.
    I typically get after market front caps but I sense both will be replaced if I get this lens.

    What does the hood look like reversed for storage?
     
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  10. Mike Peters

    Mike Peters Mu-43 Regular

    68
    Jun 19, 2016
    Mike Peters
    First photo with the 56 @1.4, 1/160, iso 200, GH5. Works for me...
    120718_7671_WSO.jpg
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    • Wow Wow x 4
  11. RyanM

    RyanM Mu-43 Veteran

    274
    Jun 16, 2017
    This looks like a very tempting alternative to my Oly 45mm. A bit more reach, more aperture, thinner DOF, not too big. I'll be interested once used copies start to filter into the market
     
    • Agree Agree x 1
  12. tkbslc

    tkbslc Super Moderator

    Not that close in light gathering (F1.8 vs f1.4 is over half a stop), but it will give similar BG blur with the same framing.
     
  13. coffeecat

    coffeecat Mu-43 All-Pro Subscribing Member

    Aug 4, 2012
    SW England
    Rob
    Acc
    IIRC, according to DXO, the Oly 1.8s (45 and 75) have a best Tstop of 2.0, and the previously tested m43 Sigma 1.4s have a best Tstop of about 1.8. This does NOT include the 56mm, since they haven't published results for it yet.

    By my calcs, that is a difference in light gathering of about 0.3 stops ie. log to base 2 of (2/1.8)^2.

    So not a huge difference - would allow you to use 1/30 instead of 1/25, for example.

    I think the biggest thing is you could have similar BG blur to the 75mm, with, as you said, the same framing, but without being so far away from the subject.
     
    • Agree Agree x 2
    • Informative Informative x 2
  14. Did they test the T-stop on APS-C or m4/3? The T-stop is measured at frame centre, and being APS-C the Sigma should have much less vignetting compared to either Olympus lens when mounted on Micro Four Thirds, resulting in a brighter image than the T-stop would indicate when averaged across the frame.
     
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    • Agree Agree x 1
  15. tkbslc

    tkbslc Super Moderator

    DXO shows T1.7 on m4/3 for the 30mm f1.4
    All the f1.7 and f1.8 lenses they tested say T2.0. So we are back at half a stop as the apertures indicate.
     
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  16. Mike Peters

    Mike Peters Mu-43 Regular

    68
    Jun 19, 2016
    Mike Peters
    Well, a half stop or a third, it's all good. I like the focal length better than a 42.5 or 45, always felt an 85/90 in FF was too short. For me, it's a bit longer than a 105 Nikon in terms of FOV, which I always felt comfortable with for portraits and general photos.

    Now, if someone would make a 10/10.5mm f2.0 and a 90/100 or 125/135 mm f2.0 lens for m4/3, I'd be a happy camper and have all the primes I could ever need.
     
    • Like Like x 1
  17. swifty

    swifty Mu-43 Regular

    53
    Jan 30, 2013
    Singapore
    Dave
    Mounted on an EPL-9
    i-QhnsDDT-L.jpg
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    Hood reversed:
    i-J2N3zgn-L.jpg
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  18. That's a very snug reversing hood - very nice for storage and travel.
     
    • Agree Agree x 1
  19. swifty

    swifty Mu-43 Regular

    53
    Jan 30, 2013
    Singapore
    Dave
    I'm still stuck in the office on a Saturday but here are just some quick samples I managed to get late yesterday and this morning. SOOC jpeg transferred to my phone via the Olympus App (not my usual workflow).

    Distant subject @ f4
    i-JWQBqBL-XL.jpg
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    Close up @ f/1.4
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    Not a brick wall but you folks'll have to settle for a blue door :p  f/3.2
    i-nqkNVgt-XL.jpg
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    Obligatory cat @ f/1.4
    i-9ZVsxfm-XL.jpg
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    Very tall mannequins @ f/1.4
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    I estimate these guys were around 1.9m tall (not including the small podium) and I was around 10m away.

    Giant Teddy bear (estimate around 2.2m tall) @ f/1.4
    i-c9dVBDW-XL.jpg
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    Full length people shots. Truck for scale. f/1.4
    i-HHk2kZG-XL.jpg
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    Half length people shot @ f/1.4 with foreground bokeh
    i-4GpvtgL-XL.jpg
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    Bokeh transition at f/1.4 on busy foliage.
    i-nm7kXXL-XL.jpg
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