MEGA BLOWOUT! My New Speedbooster and Tokina 11-16mm f2.8 vs. Oly 9-18 f4-5.6. vs. Oly 12-40mm f2.8

Discussion in 'Adapted Lenses' started by Trinurse, Jun 10, 2014.

  1. Trinurse

    Trinurse Mu-43 Regular

    82
    Feb 26, 2011
    My BEAUTIFUL wife gave me a Metabones Speedbooster for our 4th Anniversary a few weeks ago and I've just been able to shoot a comparison with my other lenses. I also decided to trade in all my Nikon gear (which I haven't picked up since I got my OMD E-M5 last year) and got the Tokina which I envisioned to be the near ideal landscape setup, size and weight notwithstanding.Just after I got the Tokina and Speedbooster,I took them out for a quick hike and was impressed with the results (after some basic HDR wizardry):

    Elemnts11-553095And8more_fused.

    The lens test was shot with my E-M5 off my back porch yesterday with dark, overcast skies which presented pretty good conditions for minimal shadows.

    Oly 9-18mm f4-5.6 @11mm f4.5. Oly 9-18mm f4-5.6 @16mm f5.3.

    Oly 12-40 f2.8 @12mm f2.8. Oly 12-40 f2.8 @16mm f2.8.

    Tokina 11-16mm f2.8 @ 11mm f2.8. Tokina 11-16mm f2.8 @ 13mm f2.8.

    Tokina 11-16mm f2.8 w Speedbooster @ 11mm f2.8. Tokina 11-16mm f2.8 w Speedbooster @ 13mm f2.8.

    Tokina 11-16mm f2.8 w Speedbooster @ 16mm f2.8.

    Alongside of the obvious increase in field of view, I see a noticeable increase in contrast and the clarity of detail is nothing short of amazing. I'm very pleased with the results and consider the MB Speedblaster worth the cost and certainly delivers as promised. Unlike the 9-18 (which I am disappointed in corner sharpness ), I see corner to corner sharpness in the Tokina+SB which I've never seen before in a lens as wide as 7mm.

    One question: Does anyone know I can correct for barrel distortion? I have PTLens and Hugin but don't have a clue how to apply them to this setup.

    Hope someone finds this helpful,
    John

    BTW - I shot a total of twenty shots but could only upload ten of them here.
     
  2. wjiang

    wjiang Mu-43 Hall of Famer

    Although I use Hugin to defish, I haven't actually bothered myself with correcting a rectilinear lens. Essentially what you need to do is to do a lens calibration in Hugin using a photo of a reference grid of straight lines, marking points in the image which are supposed to be straight lines. With the calibrated profile, output as rectilinear projection to get the corrected version.
     
  3. Trinurse

    Trinurse Mu-43 Regular

    82
    Feb 26, 2011
    Thanks. I'll try that. Good idea. Thank you.
     
  4. Pawel D.

    Pawel D. Mu-43 Regular

    45
    Jan 25, 2014
    Białystok, Poland
  5. Trinurse

    Trinurse Mu-43 Regular

    82
    Feb 26, 2011
    Agreed. This is a really interesting combination and enjoyed reading your assessment on your website. I love the possibilities we have in M4/3!
     
  6. Pawel D.

    Pawel D. Mu-43 Regular

    45
    Jan 25, 2014
    Białystok, Poland
    Thanks! I wish someone manufactured Speed Booster/Focal Reducer with 0.5x multiplier :) That would be perfect to achieve full frame geometry on MFT sensor :)
     
  7. Trinurse

    Trinurse Mu-43 Regular

    82
    Feb 26, 2011
    Agreed but apparently Mr. Caldwell looked into this and decided it simply wasn't feasible for (non industrial) consumers.
     
  8. millhoud

    millhoud New to Mu-43

    4
    Jun 25, 2014
    Trieste
    Milos Cuk
    I thought it was possible to control aperture with the nikon g to mft speed booster, the one with the ring. Am i wrong?
     
  9. RnR

    RnR Mu-43 All-Pro

    Sep 25, 2011
    Brisbane, Australia
    Hasse
    No you are not wrong - you are correct. The one that Pawel is talking about, is not a Speedbooster.
     
  10. Trinurse

    Trinurse Mu-43 Regular

    82
    Feb 26, 2011
    Which is one of the reasons MB Speedbooster costs so much more.
     
  11. Pawel D.

    Pawel D. Mu-43 Regular

    45
    Jan 25, 2014
    Białystok, Poland
  12. Trinurse

    Trinurse Mu-43 Regular

    82
    Feb 26, 2011
    I looked at this lens also but decided not too because it can't take filters.