Mixed Legacy Collection - what's the best way to adapt?

Discussion in 'Adapted Lenses' started by UncleVanya, Feb 5, 2016.

  1. UncleVanya

    UncleVanya New to Mu-43

    6
    Feb 5, 2016
    Brad Shea
    So I have recently plunged into the M4/3 world with a GX7. I own a LOT of Pentax lenses both those with and without aperture rings. My first inclination was to get a PK adapter with the option to control aperture but then I wondered if there was a better way... . I have a few Nikon lenses and a few Canon FD lenses and I wondered if there was a good FD adapter that I could pair with a Nikon to FD and PK to FD adapter to give me a simple way to mate all three without buying three M4/3 adapters - plus if I later wanted to take the plunge and get an FD focal reducer I could fit any of these to it rather than having to buy multiple focal reducers.

    Am I crazy? I assume for my DA Pentax Lenses I'll still need an adapter with aperture control (crude but better than nothing) which means this is mostly of moderate interest unless there is a K to FD adapter with aperture control.
     
  2. stratokaster

    stratokaster Mu-43 All-Pro

    Jan 4, 2011
    Kyiv, Ukraine
    Pavel
    I'm not aware of any Pentax K to Canon FD adapters. I think it might be impossible because the adapter would need to be extremely thin. Even Nikon F to Canon FD adapters are very flimsy.

    And yes, you'll still need an adapter with aperture control for your DA and newer D-FA lenses.
     
  3. UncleVanya

    UncleVanya New to Mu-43

    6
    Feb 5, 2016
    Brad Shea
    I can't find a K to FD currently for sale but they were made at one time not too long ago per some threads I have read. I can't recall the brand right now. The Nikon F mount and Pentax are essentially almost the same distance. I have mounted Nikon F lenses to my Pentax directly (no adapter) and taken pictures with that combo. However I see the wisdom in not over complicating things.

    Are the aperture adapters for K to M4/3 reasonably well made?
     
  4. stratokaster

    stratokaster Mu-43 All-Pro

    Jan 4, 2011
    Kyiv, Ukraine
    Pavel
    The difference in flange distance between Pentax K and Nikon F is 1mm (it's 45.5 mm for the K mount and 46.5mm for the F mount). the mounts themselves are indeed very similar, and it's actually quite possible to use Nikon F lenses on Pentax cameras without any adapters (the lenses will focus past infinity), but it's not true for Pentax lenses on Nikon cameras.

    I have no idea, my only Pentax lens is a 50mm SMC-M. But I suspect it'd be in line with other adapters with aperture control rings such as Nikon G to Micro 4/3, etc.
     
  5. HarryS

    HarryS Mu-43 Top Veteran

    921
    Jun 23, 2012
    Midwest, USA
    I still own the DA 16-45 and two old DA kit zooms. Frankly, they just aren't much fun converted to M43 with a K-adapter with the aperture lever, being plastic lenses with hardly any resistance on the focus ring. The aperture mechanism has no mechanism to determine f-stp. You only know for sure wide open or full stop. The in-between settings are unknown. Of course, it doesn't matter because you would not remember the f-stops later. Perhaps, if I owned DA limited lenses I would feel differently, but if I did, I might still be shooting a Pentax DSLR.

    I also have a 50mm f2 SMC lenses, so I have a PK-M43 adapter for it. I buy adapters for $10-12. The above K-adapter and this SMC-adapter do the job, but they are cheap.

    Suggest that you just prioritize which lenses might make sense for usage on your GX7, and start with one adapter type. Figure out if you like manual focus, etc.
     
    Last edited: Feb 6, 2016
  6. HarryS

    HarryS Mu-43 Top Veteran

    921
    Jun 23, 2012
    Midwest, USA
    My most used legacy lenses are FD. I do have an M42-FD ring which allows me to put my Takumar screw mounts into an FD adapter. It and the Nikon-FD ring I had were both well made.

    However, adapters are so inexpensive, it's just better to buy a dedicated adapter for a lens you use often. In the dark, it's hard enough to change lenses, much less attach an FD lenses to the fiddly FD adapters, so I added an extra one. No big deal at $12.

    It's a different story with focal reducers. Even the cheap ones are not cheap, so I understand how you might want one to serve several mounts. In that case, EF will fit more lenses, except it won't take FD. A whole different thread is needed to debate the merits or value of focal reducers anyway, especially the inexpensive models.
     
    Last edited: Feb 6, 2016
  7. pellicle

    pellicle Mu-43 All-Pro

    Feb 10, 2010
    Southport, OzTrailEYa
    pellicle
    get an adapter for each mount type ... its the best way.

    If you get any ebay cheapies, disassemble them, put some thread lock in the screws and put them back together.

    Check infinity focus before the thread lock goes in and shim as needed. Check infinity with 28mm or shorter lenses as these are more critical.

    I use OM and FD

    For the FD I have single billet FD adapters like this:
    FD-1.

    they are tough and reliable

    in my view ...: Ciecio7 - new FD micro 4/3 adaptor
     
  8. Petrochemist

    Petrochemist Mu-43 Top Veteran

    653
    Mar 21, 2013
    N Essex, UK
    Mike
    FD mount hasn't been made for a long while so there's not much demand for adapters going to FD.
    I use several EOS mount adapters, even though I have no EOS lenses. (Most of mine are PK, & M42 but I have an OM as well.)
    I now have an extending helicoid adapter, a tilt adapter & a focal reducer all in EOS, and can use EOS-PK or EOS-OM adapters to mount my lenses on them. The EOS-lens adapters do tend to be much smaller making it more convenient to carry a variety. If I had any Nikon lenses I'm sure I'd find several EOS-F adapters without any problem. - This approach does not allow aperture control of the DA lenses, I have a standard DA adapter for that but don't really get on with the aperture control it gives so tend to stick to older PK glass for adapting.

    The only issues I've had using adapters is short focal lengths - when trying lenses shorter than ~25mm the length of the adapter starts becoming critical...
     
  9. UncleVanya

    UncleVanya New to Mu-43

    6
    Feb 5, 2016
    Brad Shea
    Those are all very helpful replies.
    I continue to shoot Pentax, and have an embarrassingly nice collection of lenses - some of which do not have aperture rings. I also have a very nice FD 85mm f1.8 SSC lens. My only Nikon glass is not great, so I really only need two basic adapters. Focal reducers aren't as big of a requirement right now.
     
  10. Klorenzo

    Klorenzo Mu-43 All-Pro

    Mar 10, 2014
    Lorenzo
    Having a few Nikon adapters and a Nikon focal reducer I got a m42 -> Nikon to mount a Super Takumar. Obviously it works. I did not test infinity focus as I do not use it much but more adapters means more jiggle and more tolerance errors even if these could even cancel each other out giving a perfect result.
    I think it's an option especially for expensive adapters or if you have just one different lens. Otherwise I see little value over specific adapters: the price of a cheap m42->micro43 and a m42->Nikon is about the same.
     
  11. Petrochemist

    Petrochemist Mu-43 Top Veteran

    653
    Mar 21, 2013
    N Essex, UK
    Mike
    Mounting M42 lenses on Nikon bodies requires a optical element or infinity is lost. Nikon's F mount has a rear flange distance about 1mm more than PK & M42, or about 2mm more than EOS... For macro it doesn't matter but it's enough to prevent anything else being focused with wider lenses. IIRC it's the least adaptable of the 35mm SLR mounts.
     
  12. pellicle

    pellicle Mu-43 All-Pro

    Feb 10, 2010
    Southport, OzTrailEYa
    pellicle
    Hi
    I think that's a good strategy. I also think that you may perhaps benefit from buying one or two more adapters for your pentax lenses (depending how many you currently have that is) so that you can just leave the adapter on the lens. Get some cheapie m43 lens base caps so you can feel comfortable to carry them in your bag that way too.
     
    • Agree Agree x 2
  13. RnR

    RnR Mu-43 All-Pro

    Sep 25, 2011
    Brisbane, Australia
    Hasse
    pellicle is smart - listen to pellicle.

    Have an adapter for each slot in your camera bag. If you can field 4 pentax lenses during an outing, have 4 pentax adapters.
     
    • Funny Funny x 1
  14. Klorenzo

    Klorenzo Mu-43 All-Pro

    Mar 10, 2014
    Lorenzo
    I think you are right. The fact is that first I got a m42->micro43 adapter, then the m42->Nikon to use the focal reducer. I did not check the flange distances: usually you can find only the adapters that makes sense and the m42->Nikon were quite common on ebay.
    Then probably I never actually used the last combo for real shots. I tried it this morning: with the normal adapter I can focus up to about 30 meters. With the focal reducer (Roxsen) I get up to 60-100 meters.

    Anyway I was not suggesting to use Nikon as a "base" that as you say is the worst one.

    I found that until you are swapping lenses of the same type there is no real advantage in having more then one adapter: to swap lenses you just leave the adapter on the camera and change the lens only. If you have some native and some Pentax then yes, more then one adapter may help.
     
  15. RnR

    RnR Mu-43 All-Pro

    Sep 25, 2011
    Brisbane, Australia
    Hasse
    I found some of the cheaper adapters were kinda tight to get on to the lens - so rather than battle with adapters in the field I would do it when filling the camera bag.
     
    • Agree Agree x 1
  16. pellicle

    pellicle Mu-43 All-Pro

    Feb 10, 2010
    Southport, OzTrailEYa
    pellicle
    of course if you happen to also have a native lens (which was actually my first lens which came with my G1: a 14-45) then that gets old fast as I usually am swapping one lens for another. So if you ONLY have (say) Pentax lenses and no natives then maybe ... but then you'll need a body cap for that (unless you want to leave the sensor open).

    As it happend my first legacy lens was FD, then OM then Pentax 110.