m42 lens

Discussion in 'Samsung Forum' started by bryanashford, Apr 7, 2012.

  1. bryanashford

    bryanashford SC Rookie

    11
    Feb 29, 2012
    wales
    going on holidays soon would appreciate some advice on some wide angle m42 lens some beach photography any one got any ideas which are quite good for this please help
     
  2. Country Parson

    Country Parson SC Top Veteran

    682
    Apr 5, 2011
    North Carolina
    Real Name:
    Dan
    Novice question about M42 lenses.

    These are screw/threaded type if I understand correctly. Are all Leica screw/threaded lens the same thread size? I see a lot of them on Ebay.
     
  3. pdh

    pdh SC Legend

    Jan 2, 2011
    Dan -- M42 are old SLR lenses & have a 42mm diameter thread mount ; the old Leica thread (variously also known as Leica screw mount/LTM/L39/M39) mount is 39mm.

    I'm not quite sure what bryanashford is asking here?
     
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  4. pictogramax

    pictogramax SC Top Veteran Subscribing Member

    962
    Aug 18, 2011
    Belgrade, Serbia
    I researched a bit this subject last year and ended with VIVITAR 28mm for my Sony Nex3. I managed to find one made by KOMINE (the serial number should start with 28) as they are considered to be the sharpest and of overall better quality than other Vivitars. It's OK, soft (but somewhat dreamy appealing looking) wide open and pretty good at f8. My manual focusing skills need improvement, though:) And it's not a wide angle really once atached to 1.5 crop factor body. Maybe you would want at least 24mm?

    Wide Super Takumars are consider to be the best, but start at f3.5 (which I do not think is problem as I stop my Vivitar to at least f4 anyhow) and are more pricey (which influenced my decision much more:)).

    You might find these threads interesting, from Flickr M42 group:

    Flickr: Discussing Wide - angle lens in M42

    Flickr: Discussing Best 24mm M42 lens in M42

    Here's that group, lot's of useful stuff on M42:

    Flickr: M42

    And another huge resource:

    compatibilite-en

    Maybe I could find a sample or two of my images, but I used that lens mostly on our holidays and I don't post my family photos on Flickr. Will check if there are some neutral ones, but still interesting as examples.
     
  5. pictogramax

    pictogramax SC Top Veteran Subscribing Member

    962
    Aug 18, 2011
    Belgrade, Serbia
    Oh well, I remembered I have one on Flickr:

    <a href="http://www.flickr.com/photos/maxjaguar/6324189768/" title="SA(N)DBOX by Milan Jovanovic /pictogramax, on Flickr">[​IMG]"1024" height="745" alt="SA(N)DBOX"></a>

    That's Vivitar 28mm I talked about, f8 and cropped a bit at PP.
     
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  6. Julien

    Julien SC Top Veteran

    749
    Jan 6, 2012
    Paris, France
    Real Name:
    Julien
    It's going to be tough finding a good m42 wideangle that stays a true wideangle on your Samsung, due to the crop factor. I'm not sure there's anything decent under 28mm in m42 mount. And Samsung has good and cheap lenses at these focal lengths don't they?
     
  7. pictogramax

    pictogramax SC Top Veteran Subscribing Member

    962
    Aug 18, 2011
    Belgrade, Serbia
    Takumar 24mm is supposed to be decent, but even that will no longer be a true wide on crop-factor body, true.

    Anyway, I found another one:

    <a href="http://www.flickr.com/photos/maxjaguar/6907433618/" title="2011 08 20 - 06171 by Milan Jovanovic /pictogramax, on Flickr">[​IMG]"745" height="1024" alt="2011 08 20 - 06171"></a>
     
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  8. bryanashford

    bryanashford SC Rookie

    11
    Feb 29, 2012
    wales
    some good m42 wide angle lens any one got a good guide to a wide angle lens
     
  9. BillN

    BillN SC Hall of Famer Subscribing Member

    Aug 25, 2010
    S W France
    Real Name:
    Bill
    remember your x2 crop factor with M43 cams

    so wide angle SLRs lens that are wide angle on a small sensor camera can be difficult to find and then they are not really wide angle

    24mm SLR lens = 48mm on an M43 cam
     
  10. Country Parson

    Country Parson SC Top Veteran

    682
    Apr 5, 2011
    North Carolina
    Real Name:
    Dan

    Thanks Pdh. So any screw mount Leica I find will be 39mm. That is good to know. But now I am confused because the adapter I bought (by mistake) says M42 but my calipers show a 39mm thread.
     
  11. pdh

    pdh SC Legend

    Jan 2, 2011
    Dan I'm not an engineer by any means so I can't explain that ... :frown: ... might be worth asking in the "Projects/Repair" subforum and hoping Brian sees it, he's the man for this sort of query ...

    paul
     
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  12. pictogramax

    pictogramax SC Top Veteran Subscribing Member

    962
    Aug 18, 2011
    Belgrade, Serbia
    Dan,
    Leica screw mount is indeed 39mm, as well as Russian rangefinder lenses for Kiev and Zorki. M42 is Pentax screw mount standard that got accepted by many others. The first being from rangefinder origins and the second from SLR, they sport different registration distances (from lens to film/sensor plane).

    So an easy way to tell if you have an adapter for M39 or M42 is to check its thickness. If it's just a few millimeters thick, it's M39; if it's somewhere around 30mm, it's M42.
     
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