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  1. dancook

    dancook

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    Used the 50mm 1.4 SL at a wedding Friday..

    These are unprocessed, except for exposure tweak, both at f1.4

    There is no AA filter, and so there is potential moire - this is the first time i really noticed it.. and it's quite extreme

    Full size 6000x4000
    https://c1.staticflickr.com/3/2939/33167514130_fc90dea4f2_o.jpg

    [​IMG]Moire by dancook1982, on Flickr

    Just another sample of the 50mm

    Full size 6000x4000
    https://c1.staticflickr.com/3/2902/32707527334_842252f5b2_o.jpg

    [​IMG]B+G 50mm example by dancook1982, on Flickr
     
    Last edited: Mar 20, 2017 at 4:24 PM
    Swanseajack likes this.
  2. magicolor1

    magicolor1

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    Simon
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    Super crisp, but the moire in the first one is quite bad!
     
  3. dancook

    dancook

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    Yes, but the price of no aa filter.. First time I've ever noticed it..and assumed it was just an illusion at first.. Not going to spoil photo though
     
  4. magicolor1

    magicolor1

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    Simon
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    Yes it's a price worth paying for the amazing detail. Is it easy to remove in post processing?
     
  5. dancook

    dancook

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    There appear to be guides online, looks like it could be a case of making the moire effect the same colour as the suit so it blends in.
     
  6. ChrisR

    ChrisR

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    Not easy (for me) to notice the moire on the first image as shown here, but when you get it large off the flickr image it is pretty awful. I'd be interested to know how you get on with post processing it out. (Not that I'm at all likely to buy one of these cameras!)
     
  7. dancook

    dancook

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    I won't be processing any of these wedding images, I don't need to :D I'm second shooting, and I just hand them all over.

    There are other cameras without AA filters, the negative doesn't come up often
     
  8. Tobers

    Tobers

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    Looks good @dancook. Nice separation as you'd expect from that lens. How was the usability, focus etc?
     
  9. dancook

    dancook

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    Cheers,

    Well originally it seemed the AF speed isn't the best but I've been playing around with it -

    Using 'field' AF which is actually a fairly regular box, instead of the crosshair single pixel AF point - it performs better.

    Then, just today, I started to experiment with continuous AF mode....it seems to keep the AF alive, it feels more responsive like this.

    I shot C-AF, f1.4 on a car travelling towards me at 20-30mph and each of these sequential shots were in focus, and the dof gave isolation to the car. I want to try C-AF on some human subjects next..

    (not sure why the colours got destroyed uploading it to TP)

    caf_test.jpg

    here's a prettier photo to leave you with :D

    [​IMG]Leica SL with 50mm 1.4 SL Summilux by dancook1982, on Flickr
     
  10. dancook

    dancook

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    I also made a video on the AF speed of this lens, it might not be the clearest - but you can see the green confirmation square when it gains AF - and the change in the image as it's achieving focus..

    The closer left side focusing quickly, and the further right side taking a moment longer


    View: https://youtu.be/Pj4-wKjAkKI


    Hopefully it'll be better than reading into people's opinions and generating new ones based on one's imagination...
     
  11. ndwgolf

    ndwgolf

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    Neil Williams
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    What's morie
     
  12. dancook

    dancook

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  13. ndwgolf

    ndwgolf

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  14. dancook

    dancook

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    Lack of AA filter, it is sharper to not have it - but it's a possible side effect
     
  15. magicolor1

    magicolor1

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    It's effectively an interference pattern caused when the subject has (usually) stripes that are close in frequency to the sensor itself. You very occasionally see it on TV when someone wears a stripy suit :) The anti-aliasing filter prevents it by slightly blurring the image which obviously has a negative effect on sharpness.
     
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  16. rjbell

    rjbell

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    Robert
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    Has your buddy sold a kidney and bought a leica yet? Haven't seen him around for a while.
     
  17. dancook

    dancook

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    If you mean Nuzik/Neil, he went back to the D750 :)
     
    rjbell and snerkler like this.
  18. snerkler

    snerkler

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    I must admit I didn't see the moire at first but once spotted it's pretty obvious. I'm guessing most non photographers wouldn't see it though, all they're bothered in is the 'moment', far less picky than us ;)
     
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  19. dancook

    dancook

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    I think I've seen it just on a monitor before, viewing a fine pattern at a certain magnification, creating a moire effect - so my first instinct is that it's an optical illusion.. :D
     
  20. snerkler

    snerkler

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    I see it quite often on TV programs (especially bargain hunt :LOL:), but never on a photo I don't think.
     
  21. magicolor1

    magicolor1

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    Not the most annoying thing about Bargain Hunt...!
     
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  22. HoppyUK

    HoppyUK

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    Moiré or 'alliasing' is an interference pattern caused when the regular lines of pixels clash with similar patterns of fine detail in the subject - eg some fabrics, roof tiles etc. You see it a lot on telly with herringbone jackets etc because of the course TV resolution - higher resolution sensors reduce it, and so does an anti-alliasing AA filter by slightly blurring very fine detail.

    Normally not a problem, though I get it all the time when doing product shots of camera bags for my work, even on cameras with a AA filter. However, it's very easy to get rid of in LightRoom with the moiré local adjustment brush. I've found this to be a total solution and dead easy - unless you've got a hundred weddings photos to fix.

    Article here https://photographylife.com/what-is-moire/
     
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