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Sony DH-1758 1.7x on Panasonic 35-100 f2.8

Discussion in 'Native Lenses' started by ijm5012, Oct 2, 2013.

  1. ijm5012

    ijm5012 Mu-43 Hall of Famer

    Oct 2, 2013
    Pittsburgh, PA
    Ian
    Hello everyone,

    I'm currently shooting with a Sony NEX-6, and while I love the camera, the lens selection is a bit lacking IMO. I'm considering jumping ship to M43, as there is a vastly superior portfolio of lenses available, and the newer bodies/sensors are very good in quality.

    Part of my gear for my Sony is the DH-1758 tele-extender that I use on my SEL55210 lens to get me some extra reach (it's a fantastic extender).

    When looking at the lenses for M43, I plan on going with the 25 f1.4, 12-35 f2.8, and 35-100 f2.8. I feel that with those lenses, I should have a focal length of almost every situation. My biggest issue is that I would only have a reach out to 200mm (in terms of a 35mm equivalent). Looking at the 35-100 f2.8, I see the filter threads are 58mm in diameter, the same diameter as the threads on the DH-1758 extender I have.

    My question is, has anyone ever used this combination before? Can the extender simply thread right on to the lens? If not, is there something like a 58mm to 58mm "step up" ring (I know it's not a step up, but would allow the extender to be attached to the front of the lens)? Obviously I would run in to vignetting issues on the wide end of the lens, but when at the tele end of the lens, would I have any vignetting? If not, I feel that it would fully round out my kit, as it would give me a 340mm focal length (again, 35mm equivalent), which would be perfect for any occasions I would need extended reach.

    I appreciate anybody's feedback on this, thank you!
     
  2. EarthQuake

    EarthQuake Mu-43 Top Veteran

    832
    Sep 30, 2013
    I have not used this combination, but if your TC has a 58mm thread, and the lens has a 58mm thread, it will fit on. Filter threads are standardized.
     
  3. ijm5012

    ijm5012 Mu-43 Hall of Famer

    Oct 2, 2013
    Pittsburgh, PA
    Ian
    OK, that's what I thought but I was just wanting to make sure. Thanks for chiming in!

    It would be nice to hear from someone who has used this combination, because the last "fear" I have is vignetting. Like I said, I only plan to use this on the tele end when 100mm isn't enough reach. If this works out, I'd be really happy as it would save me from having to purchase a separate lens that wouldn't see that much use, and help save space and weight in my camera bag.
     
  4. ntblowz

    ntblowz Mu-43 Veteran

    312
    Nov 13, 2011
    Auckland, New Zealand
    If you use Panasonic camera you have ETC mode that just crop the photo/video without the ugly digital upscaling. It add about 2.4x zoom to existing range if recording in FHD, more in HD/still mode.
     
  5. Promit

    Promit Mu-43 All-Pro

    Jun 6, 2011
    Baltimore, MD
    Promit Roy
    You use it on a lens that starts at 55mm (about 80 equiv), and you want to use it on a lens that starts at 24 equiv. It's going to vignette at the near end, probably quite a bit. But it might work at telephoto, if you're just trying to get reach.
    [EDIT] Nevermind.
     
  6. ijm5012

    ijm5012 Mu-43 Hall of Famer

    Oct 2, 2013
    Pittsburgh, PA
    Ian
    Yeah, the purpose would be to use it on the tele end to make it essentially a 170mm lens. It may not be f/2.8 due to some slight vignetting, but still, a 170mm f3.5 or 4.0 wouldn't be too bad IMO.
     
  7. STR

    STR Mu-43 Veteran

    222
    May 16, 2013
    ??? 35-100 is 70-200 equivalent. Maybe you're thinking of the 12-35?
     
  8. ijm5012

    ijm5012 Mu-43 Hall of Famer

    Oct 2, 2013
    Pittsburgh, PA
    Ian
    More than likely yes, that is what he is thinking of. No use using it on that lens, only considering it for the 35-100 for use one the tele end to give a 340mm equivalent, probably shooting at f4.0. Not bad IMO, assuming that it works well.

    Does anyone know what the 100-300 aperture is at 170mm? Just as a comparison.
     
  9. Promit

    Promit Mu-43 All-Pro

    Jun 6, 2011
    Baltimore, MD
    Promit Roy
    Whoops, misread the thread.
     
  10. Promit

    Promit Mu-43 All-Pro

    Jun 6, 2011
    Baltimore, MD
    Promit Roy
  11. ijm5012

    ijm5012 Mu-43 Hall of Famer

    Oct 2, 2013
    Pittsburgh, PA
    Ian
    Wow, awesome information! Very well done.

    So, if you are shooting the 35-100 + DH1758 at F4.0, you get about a half stop benefit over shooting the 100-300 at 175. However, at 175 and F4.7, you're shooting wide open versus stopping down the 35-100.

    It's an interesting comparison, just a shame that no one has looked at anything like this before. If anyone was local to the Pittsburgh area and willing, I may be willing to loan the DH1758 for testing purposes on the 35-100.