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Adapted normal lens options? (20-25mm)

Discussion in 'Adapted Lenses' started by Promit, Sep 9, 2011.

  1. Promit

    Promit Mu-43 All-Pro

    Jun 6, 2011
    Baltimore, MD
    Promit Roy
    I have some nice old Minolta glass I've been enjoying, but I'm finding that 50mm is rather too long for general purpose use. I'm too broke to buy the 20mm pancake right now -- and I'm not convinced that it's a focal length I want. So what are some nice or fun adapted options in the normal 20-25mm range? Ideally looking for a fast prime, of course. I know there's CCTV lenses with their crazy bokeh, but what else?
     
  2. meyerweb

    meyerweb Mu-43 Hall of Famer

    Sep 5, 2011
    Not much, I don't think. 20-25mm lenses from 35mm systems are wide angles originally, and tend to be expensive and not real fast (typically f2.8 or f3.5 at best).

    But if there's anything that will suit, you'll probably find it on ebay.
     
  3. 24mm lenses in any of the major SLR brands start to get expensive, even the f/2.8 versions, and 20/21mm lenses even more so. A faster lens like the OM Zuiko 24/2 will probably be worth a similar amount to the Panasonic 20/1.7. An OM Zuiko 21/2...it's probably best not to ask. There are lots of third party lens options in the 24mm focal length: Vivitar, Tamron, Tokina, Miranda. These are significantly cheaper but can still be quite nice lenses if you get a good one.
     
  4. Mellow

    Mellow Mu-43 All-Pro

    Aug 27, 2010
    Florida or Idaho
    Tom
    I researched this question for a long time and concluded there wasn't really anything available. Like you said, there are C-mounts, but these are special lenses for special shots, and not a good everyday normal lens.

    I do own a Sigma Super-Wide II, 24mm f/2.8--but it's not a whole lot faster than the kit and is nearly twice as long and heavy. I keep it because it's a semi-macro (I think it can focus to about 6"), not because I enjoy lugging it along to shoot as an everyday lens. Still, if the 50mm is your only lens and you want to try something shorter, it's quite a good lens optically and can be had for < $100 US. Of course there are other options, but not so many at 24mm. The Olympus Zuiko 24mm f/2.8 is supposed to be a gem, but is priced like it. Just looking on eBay, here are some recent sales of 24mm's that came in less than $100:

    Nikon Nikkor 24mm f/2.8 ($57)
    Sigma 24mm f/2.8 (not the Super-wide, I don't think) ($75)
    Canon 24mm f/2.8 FD ($69)
    Canon 24mm f/2.8 FD ($97)
    Vivitar 24mm f/2.8 ($51)
    Kentar 24mm f/2.8 ($31)
    Vivitar 24mm f/2.8 ($75)
    Nikon Nikkor 24mm f/2.8 ($81)
    Canon 24mm f/2.8 FD ($80)

    I have no experience with ANY of these lenses, but I'd bet some are pretty good, though bulky. Maybe some others can chime in.

    Good luck,
    Tom
     
    • Like Like x 1
  5. nickthetasmaniac

    nickthetasmaniac Mu-43 All-Pro

    Jan 11, 2011
    What you really want is an SMC Pentax-K 24/f2.8.

    Oddly enough I have one for sale :wink:

    But no, as other's have said, you start to run into difficulties if you go wider than about 40mm with legacy glass. Because most were wide-angles designed to cover the quite large 35mm format frame, they are as a rule larger, more expensive and slower than necessary for MFT. That doesn't mean that there aren't high-quality examples out there (the K24 I own is stunningly sharp across the frame and has zero light fall-off), but it's not quite as comfortable match as legacy 50mm lenses for example...

    Of course you could try the C-mount lenses but these aren't really ideal for stills.
     
  6. Mellow

    Mellow Mu-43 All-Pro

    Aug 27, 2010
    Florida or Idaho
    Tom
  7. Promit

    Promit Mu-43 All-Pro

    Jun 6, 2011
    Baltimore, MD
    Promit Roy
    Could you elaborate on this? I know the background bokeh on a lot of the CCTV lenses can be odd, but what else? I'd hoped that maybe some old-school 16mm cine (not CCTV) lenses would be an option...I'm not thrilled about f/2.8 being the fastest I can get in a normal lens.
     
  8. Mellow

    Mellow Mu-43 All-Pro

    Aug 27, 2010
    Florida or Idaho
    Tom
    Let me offer my interpretation of why some people avoid C-mounts for stills:

    Most c-mount lenses vignette to various degrees, which is really noticeable for stills but less so for video, especially if you shoot 16:9. They are rarely sharp from edge to edge--in fact, they may be distinctly smeared near the edges at nearly all apertures. This makes them unsuitable for many shooting situations.

    On the other hand, I love using C-mounts for stills, though I acknowledge that the effect is very different than a good, sharp lens designed to cover the sensor (or more). Here's an example taken with a Cooke-Hobson Kinic 25mm f/1.4 cine lens (I'm pretty sure it was wide open or close to it):
    kinic-1010463.
    You'll notice it's at 16:9, and I'm pretty sure I also cropped a little bit to eliminate the vignetting (though this particular lens doesn't vignette as badly as some others).
     
    • Like Like x 2
  9. Mellow's shot above is a nice example of where the effect of a cine lens is appropriate for stills. They usually have less resolving power and produce interesting out-of-focus effects which makes them a more specialised lens that may not always be appropriate for general image making purposes.
     
  10. shnitz

    shnitz Mu-43 Top Veteran

    989
    Aug 25, 2011
    Austin, TX
    CCTV lenses that are 25mm or wider will vignette. It's slightly too close, the way they mount, so you really need longer focal lengths if you want "correct" performance out of them. Less than 21mm doesn't even have full coverage. This thread at another forum shows it off pretty well:
    Pentax 25mm f/1.4 CCTV Lens Samples *****
    Cosmicar/Pentax 25/1.4 C-mount TV lens review « efix:photography – News. Thoughts. Pictures.
    Pentax C22525KP 1" C Mount 25mm f/1.4 Manual C22525KP B&H

    Fun overall, and it can work well depending on the type of shooting you're doing, but outside of the 16mm circle, you're definitely losing out on lens performance.

    Your best bet are the 24mm lenses mentioned above. Pentax, Nikon, Canon FD, Minolta SR mount, etc. How fast is fast for you? I have a Nikon 24mm f/2.8 and love it.
     
  11. jimr.pdx

    jimr.pdx Mu-43 Veteran

    342
    Dec 5, 2010
    near Longview ~1hr from PDX
    Jim R
    I caught a deal on a Vivitar 24/2.0 on a Pentax site. Decently compact, and for the k-r it even has the 'A' setting. I haven't had time to give it a decent testing, but other than being double the size it's a fair excuse for a 20/1.7.
     
  12. addieleman

    addieleman Mu-43 All-Pro

    Aug 5, 2010
    The Netherlands
    Ad
    In earlier days I used to like 55mm over 50mm as a standard lens and I like 28mm accordingly on my Panny cameras. 28mm lenses are much cheaper in general, you should be able to get one for a few tens of dollars, so it doesn't take much money to try.

    Also, there are toy lenses of 26mm like this one. They may not be too bad when stopped down far enough.
     
  13. macalterego

    macalterego Mu-43 Veteran

    228
    Jul 10, 2012
    Lawrence, KS
    Jeffrey McPheeters
    This is of my 'normal' lenses: the Nikkor 24mm f/2.0 wide open and mounted on an OM-D; you can see it's sharp, even to the edges with good contrast and color.

    image-824365445.
     
  14. Cruzan80

    Cruzan80 Mu-43 All-Pro

    Aug 23, 2012
    Denver, Co
    Sean Rastsmith
    If you want to go a bit longer, I have had great results with a Vivitar (Komine) 28/2.0. Mine is in a Minolta MD mount, and has "Close Focus" on the front ring (apparently better optics and slightly more expensive version). Be aware, there are at least 30+ documented versions on the Vivitar 28mm (Great Vivitar 28mm Bestiary).
     
  15. svtquattro

    svtquattro Mu-43 Veteran

    354
    Sep 24, 2012
    Vancouver, Canada
    Hey that 24mm World Cup article was great! And I have one of them 24mm f2.8 Zuiko gems gathering dust. Can't wait to try it on my E-PM2 which is on its way to me!