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Samyang 85mm or something else? for shallow DOF

Discussion in 'Adapted Lenses' started by manju69, Jun 3, 2015.

  1. manju69

    manju69 Mu-43 Veteran

    493
    Jul 1, 2011
    Stroud, UK
    Pete
    Hi Folks

    I want a lens that can get me some nice shallow DOF - I have been used to the 75mm f1,8 but have sold that now to redistribute funds! I'll be using it for stills, not primarily portraits. It's a specialist lens in my kit really. See my sample attached to see the effect i want - smooth and painterly out of focus area) Manual focus is fine. Having looked at the adapted threads I liked the look of the bokeh most from the Rokinon 85mm most but am open to other manual/adapted lenses - ones that are sharp enough wide open.
    PB240212.
    I have discounted other shorter focal lengths than 75mm but may be mistaken in my assumptions about how to create shallow DOF (longer FL, large aperture and closer to subject).

    I don't what to spend £500 either! something around £100-200

    And if i did go for a Samyang, does it matter what fit? - I assume i use an adapter with it (leaving aside the way more expensive MFT version). It looks a tad heavy so maybe there are lighter lenses out there?

    thanks in advance
     
    Last edited: Jun 3, 2015
  2. ijm5012

    ijm5012 Mu-43 Hall of Famer

    Oct 2, 2013
    Pittsburgh, PA
    Ian
    Do you like the FoV that a 75-85mm lens delivers, or do you use it because of the shallow DoF.

    If you like FoV, there are plenty of vintage 85mm lenses that can be used with an adapter (f/1.8 or f/1.4's are readily available, with the f/1.8's being quite a bit cheaper). If you just like the shallow DoF, you can get a vintage 85mm f/1.8, and then pick up a focal reducer, which would give you a 61mm f/1.2.

    There are plenty of options out there, it really just depends on what you want, and your budget.
     
  3. eteless

    eteless Mu-43 All-Pro

    Jun 20, 2014
    The other option would be macro lenses such as the Nikon 105mm f2.5 (or basically any macro lens), almost all macro lenses in the history of ever are going to be a good solid performer (there's really no such thing as a dud macro lens). With macro you're always battling DoF anyway, getting things out of focus isn't normally hard.
     
  4. manju69

    manju69 Mu-43 Veteran

    493
    Jul 1, 2011
    Stroud, UK
    Pete
    Well, i like that i can be far away from the subject - say 1-3 metres and still get shallow DOF. So it's about the shallow depth of field mainly...
     
  5. bikerhiker

    bikerhiker Mu-43 All-Pro

    Dec 24, 2013
    Canada
    David
    Unless you buy a lens designed for the MFT system, the size and weight of other adapted lenses are going to be larger and heavier. All older adapted lenses are designed for 35mm (full frame). Rokinon 85mm is a pretty good lens albeit large and heavier than the 75mm OLY,but since it's going to be a specialist lens in your kit, I think you can forgo the weight concern.
    If you want smaller lenses, you can pursue the Leica and Contax G lens options, but they are so pricy that it would make more sense owning the OLY 75mm instead.
     
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  6. ijm5012

    ijm5012 Mu-43 Hall of Famer

    Oct 2, 2013
    Pittsburgh, PA
    Ian
    If that's the case, then I would look for a older 85mm f/1.8 or 135mm f/2.5. It's really a matter of how far you want to be from your subject. Both should offer very good subject isolation for a pretty cheap price.
     
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  7. tkbslc

    tkbslc Mu-43 Hall of Famer

    Sigma 60mm f2.8 is the closest cheap alternative to the 75mm f1.8.

    The longer you go, the less you need a faster aperture for good isolation. 150mm f5.6 can be as good as 75mm f2.8. 300mm f5.6 can be better than 75mm f1.8 (at 4x the distance)

    If you go with the 85mm f1.4 it is going to be massive. If you go with an old 85mm f1.8 you are going to have to stop it down to f2.8 for the razor sharp results you are used to and then you might as well get the Sigma 60mm.
     
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  8. Klorenzo

    Klorenzo Mu-43 All-Pro

    Mar 10, 2014
    Lorenzo
    To create small DoF you need the three things you said, but for a lot of background blur you also need the background to be far.

    http://howmuchblur.com/#compare-2x-...mm-f2-and-2x-75mm-f1.8-on-a-0.9m-wide-subject

    You can get the Rokinon with m43 native mount. Some advice to get the Nikon mount to sell it more easily.

    Here is a list of lenses I collected (names only...) for this same purpose, some are small, some are rare, some are better. In no particular order:

    Orestor 100/2.8 (Biometar 100/2.8)
    Nikkor 105/2.5
    Pentacon/Meyer 2.8/100
    Vivitar Series 1 90/2.5 - Tokina 90mm AT-X
    Zuiko OM 100mm f2.8
    CZJ Pancolar MC 80/1.8
    Kaleinar-5N 100/2.8
    Zuiko MC/Zuiko 85/2
    Jupiter-9 85mm f2 (?)

    There are many others like the Elmarit 90/2.8, a little over your budget.

    Here you can find a few micro reviews: http://www.prime35.com/85mm-portrait-lenses-compared/

    One possibility should be to use a 85/135mm lens with a focal reducer: I never got myself 100% convinced but I've read reports and samples that a FR can give you a shallower DoF. The FR should also can give you better sharpness, I think especially wide open where there is a lot of extra light lost.
     
    • Like Like x 1
  9. manju69

    manju69 Mu-43 Veteran

    493
    Jul 1, 2011
    Stroud, UK
    Pete
    Thanks everyone - that's given some helpful tips. I'll be scouring eBay!
     
  10. tkbslc

    tkbslc Mu-43 Hall of Famer

    what other lenses do you have already?
     
  11. manju69

    manju69 Mu-43 Veteran

    493
    Jul 1, 2011
    Stroud, UK
    Pete
    Olympus 12-40 f2.8 Olympus 60mm f2.8 Macro and PL 15mm. f1.7
     
  12. tkbslc

    tkbslc Mu-43 Hall of Famer

    You've tried the 60mm f2.8 and it's not enough?
     
  13. RnR

    RnR Mu-43 All-Pro

    Sep 25, 2011
    Brisbane, Australia
    Hasse
    The Nikon 105mm f2.5 is not a macro lens! The Nikon 105mm f4 is :D And is also a great lens for other sorts of scenes...

    105mm f4 wide open...

    Some longer focal length Nikon, like the 180mm f2.8 ED with a focal reducer would reasonable cheap and give you heaps of blur. For example...

     
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  14. eteless

    eteless Mu-43 All-Pro

    Jun 20, 2014
    I stand corrected, I recalled that it had a micro designation however on looking now I can see it does not. Still a good lens :)

    The 180mm is starting to get a bit heavy perhaps, although compared to an 85mm rokinon perhaps *that* bad.
     
  15. RnR

    RnR Mu-43 All-Pro

    Sep 25, 2011
    Brisbane, Australia
    Hasse
    Oh yes - a cracking good lens. On the Metabones focal reducer it rivals the Olympus 75mm f1.8 :drinks:
     
  16. GFFPhoto

    GFFPhoto Mu-43 All-Pro

    Feb 24, 2013
    I second this. S60 is a fantastic lens.
     
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