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  1. dancook

    dancook

    Messages:
    3,117
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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
    Swanseajack likes this.
  2. magicolor1

    magicolor1

    Messages:
    858
    Name:
    Simon
    Edit My Images:
    Yes
    Super crisp, but the moire in the first one is quite bad!
     
  3. dancook

    dancook

    Messages:
    3,117
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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

    Messages:
    858
    Name:
    Simon
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    Yes
    Yes it's a price worth paying for the amazing detail. Is it easy to remove in post processing?
     
  5. dancook

    dancook

    Messages:
    3,117
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    No
    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

    Messages:
    6,692
    Name:
    Chris
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    Yes
    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

    Messages:
    3,117
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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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    Andy
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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

    Messages:
    3,117
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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

    Messages:
    3,651
    Name:
    Neil Williams
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    What's morie
     
  12. dancook

    dancook

    Messages:
    3,117
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    No
  13. ndwgolf

    ndwgolf

    Messages:
    3,651
    Name:
    Neil Williams
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    No
  14. dancook

    dancook

    Messages:
    3,117
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    No
    Lack of AA filter, it is sharper to not have it - but it's a possible side effect
     
  15. magicolor1

    magicolor1

    Messages:
    858
    Name:
    Simon
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    Yes
    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.
     
    dancook likes this.
  16. rjbell

    rjbell

    Messages:
    4,090
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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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    3,117
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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 ;)
     
    dancook likes this.
  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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    858
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    Simon
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    Yes
    Not the most annoying thing about Bargain Hunt...!
     
    snerkler likes this.
  22. HoppyUK

    HoppyUK

    Messages:
    20,784
    Name:
    Richard
    Edit My Images:
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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/
     
    snerkler likes this.
  23. dancook

    dancook

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  24. woof woof

    woof woof

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    Alan
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    There are people who wouldn't take a shot with flare in it, I would :D
     
    dancook likes this.
  25. Ruffmeister

    Ruffmeister

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    976
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    Dan
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    They look really nice, Dan. The SL Lux 1.4 does seem a logical choice for the system. Gotta love a 50mm! I'd love to have a play with one at some point.

    Just picked up a used Sonnar 50mm 1.5 for my M and initial test shots around the house make me think that I'm going to enjoy this lens. So dreamy!
    Selling off my Nokton 35mm 1.4 in the next few days either on here or eBay.
     
    dancook likes this.
  26. Tobers

    Tobers

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    2,902
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    Andy
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    I was having a bit of trouble getting properly sharp shots with my M10 and 90 Summicron at widest aperture. After getting grumpy and seeing another post on the Leica forum about a guy who did his own rangefinder adjustment, I thought I'd do some more detailed investigations and tests. I found that all my lenses were back focusing a bit (most noticeable on the 90 for obvious reasons). So some of my own rangefinder adjustment was called for.

    For those not familiar, the inside of the lens mount of an M camera contains a mechanical lever which "couples" the focus ramp on the lens to the rangefinder assembly in the camera to enable you to see if your shot is in focus in the viewfinder. The rangefinder coupling has an arm with a pivot at one end which connects it to the body, and an eccentric cam at the other which the lens focus ramp touches. This linkage is often regarded (including by me) as some sort of magic voodoo that you must never touch. I have previously sent my M240 and a couple of lenses back to Leica to get them "adjusted" with not a huge amount of success.

    So, I ventured into the mouth of of the camera with a 2mm allen key and made some teeny adjustments to the eccentric cam. It was actually extremely easy to do. I went the wrong way initially, making the back focus worse. I then went the correct way, and went a bit too far and ended up slightly front focusing. A smidge back, and it was spot on. I am so relieved and happy. It was just annoying that I couldn't nail focus every time, and I thought it was me. Now I know it was the camera that was slightly out.

    Now sorted. Here's a before (left) and after (right) using my 90. This is a 100% crop of my near focus target. It's important to check focus at mid-distance, and infinity as well, during this process.

    [​IMG]
     
    woof woof, Sir SR and trevorbray like this.
  27. wibbly

    wibbly

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    3,073
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    Dave
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    Bought a 1963 M2 a couple of weeks ago and now I'm thinking I want to sell up all my digital kit and buy an M9. I'm thinking I need to add a decent 50mm such as a Summicron first before going mad on Leica digital!

    Love the rangefinder way though, a little slower for me but so far so good!
     
  28. Ruffmeister

    Ruffmeister

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    976
    Name:
    Dan
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    It does make you see differently by allowing you to slow down.

    I used a V4 Cron on the M9 for a few months and must admit, having recently picked up a mint used Sonnar-C 1.5, I actually think (dare I say) that I prefer it to the Cron.

    A Summicron and Tri-X film however feels like a perfect match.
     
    wibbly likes this.
  29. SsSsSsSsSnake

    SsSsSsSsSnake

    Messages:
    4,058
    Name:
    Chris
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    you need to get out more ;)
     
    snerkler likes this.
  30. wibbly

    wibbly

    Messages:
    3,073
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    Dave
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    Sounds just the sort of set up I want. I'm just not sure having shot with my Df and X-Pro1/2 I'll be taking a step back. However, it's something I want to do and accept the limitations.

    I've got hold of a collapsible 50mm 'crown, just waiting for a first film back to see how good it is - then I'll decide next lens move :)
     
  31. snerkler

    snerkler

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    8,214
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    It's usually what's on during my lunch hour, although lately it's been tipping point :LOL:
     
    SsSsSsSsSnake likes this.

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