Speedboosted F Mount Lenses Info Thread

Discussion in 'Adapted Lenses' started by Reflector, Sep 19, 2013.

  1. Reflector

    Reflector Mu-43 Veteran

    406
    Aug 31, 2013
    I own several very fun lenses, which are fairly modern with one exception. All but one of these lenses basically have anti reflective coating and baffling for digital sensors and the only film era lens is the outstanding Nikon Nikkor 50mm f/1.2 AI-S.

    Tamron 28-75mm f/2.8
    Effective: 20-53mm f/2.0
    https://www.dropbox.com/s/gdeoshe55kr944n/DSC_2733T.jpg

    Tamron 90mm f/2.8
    Effective: 64mm f/2.0
    https://www.dropbox.com/s/nam22yppgeoi5cy/DSC_2730T.jpg

    Sigma 10-20mm f/4.0-5.6
    Effective: 7-14mm f/2.8-4.0
    https://www.dropbox.com/s/bzewi81cp2turx2/DSC_2725T.jpg

    Nikon 50mm f/1.2 AI-S
    Effective: 35.5mm f/0.9
    https://www.dropbox.com/s/n4i5z7fp0lmi2l9/DSC_2727T.jpg

    Nikon 50mm f/1.8 D
    Effective: 35.5mm f/1.2
    https://www.dropbox.com/s/8x05fzesaob0x5x/DSC_2735T.jpg
    With FM2n

    Nikon 70-300VR f/4.5-5.6 G
    Effective: 50-213mm f/3.2-4.0
    https://www.dropbox.com/s/pa9g9ye5mba7z7a/DSC_2731T.jpg

    With the Panasonic 14-42X
    https://www.dropbox.com/s/746q6mtn344pwoi/DSC_2740T.jpg

    With the Sigma 18-35 f/1.8A
    Effective: 13-25mm f/1.2
    https://www.dropbox.com/s/rjv1k9urbuwukyj/DSC_2761T.jpg with grip
    https://www.dropbox.com/s/0xnb2j4nvx9gkiy/DSC_2753T.jpg

    At no point did it feel like any of these lenses would tear the mount off my camera, nor did they feel "excessively bulky." I do not own the HLD-7 yet for any of these. The 70-300VR was the most massive of the collection. IBIS can handle the 70-300VR at 300mm but not as well as in lens VR, definitely a lens combo that warrants a tripod.

    The FoV is the same as if I were to mount these lenses on the D200 or any APS-C body.
    You may actually have slightly more FoV than an APS-C body, 50mm f/1.2:
    (1.5 x 50mm) = 75mm APS-C
    (0.71 x 50mm) x 2 = 71mm m43 w/ Speedbooster

    I'll be posting full resolution images for pixel peeping if anyone wants to. I however don't have test charts.
     
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  2. Reflector

    Reflector Mu-43 Veteran

    406
    Aug 31, 2013
    Sigma 10-20
    Lens shot at: 14mm @ f/11-16?
    http://imageshack.us/a/img41/8079/0ira.jpg
    [​IMG]

    Personal notes:
    Noticeable distortion goes away between 14-20 of the FL. At 10mm you get a weird kind of distortion that only occurs at the far edges of the image. Vignetting usually happens when the lens is wide open @ 10mm. Image is generally sharp at all FLs (Improving towards the 20mm end).

    The lens feels dense and substantial. Zoom and focusing rings are very smooth and well damped. The E-M5 can be held one handed with ease.
     
  3. Reflector

    Reflector Mu-43 Veteran

    406
    Aug 31, 2013
    Nikkor 50 1.2
    Lens shot at: f/1.2 (f/0.9 after Speedbooster!)
    http://imageshack.us/a/img31/1928/xszb.jpg
    [​IMG]


    Lens shot at: f/2.8 (f/2.0, I am sure everyone understands this is a 1 stop advantage here)
    http://imageshack.us/a/img809/3889/k2if.jpg
    [​IMG]

    Personal notes:
    People who claim this lens is soft are horribly mistaken about it, because either their subject moved slightly or they were breathing deeply. At f/1.2 (SB effective f/0.9!) your DoF is like a razor blade of light absorption and small movements you move your focus off your subject quicker than you can say "But all fast lenses are soft wide open..." Not only am I the only person saying this, you can ask any proficient Canon 50 1.2L user about how there are two types of users: Those who call it soft and those who know the former are suffering from the ultra thin DoF.

    Respect your ultrafast optics and they will respect you.

    Your bokeh will swirl wide open. Around a little after 1.4 to about 2.0 you will get regular, unswirled buttery smoothness. Around 2.0-2.8 on the lens you are also in the incredibly sharp zone. How sharp do you say?

    [​IMG]

    That sharp.

    The build quality can be comparable to holding a solid cylinder of machined, coated steel in your hand. The focusing ring is incredibly smooth as well.

    On my copy, I have noticed that the aperture ring has an indent slightly after f/1.2, which on my D200 reads as f/1.4. There is no indent for f/1.8 but the aperture ring lets you set it between f/2.0 and the "f/1.4" setting. The aperture ring also lets you turn towards a hypothectical "f/1.0" setting on mine but it does nothing in terms of light gathering ability. I do however notice that the aperture blades "retract" out of view completely if you stare at it from the back of the lens.

    Also it makes the EM-5 front heavy, especially when compared to the Tamron 90mm. It is incredibly dense and you will feel the weight just from the lens alone. (This is a good thing.)
     
  4. Air-Cooled

    Air-Cooled Mu-43 Regular

    55
    Jul 27, 2012
    L.A.
    Thanks for sharing. Seems like a fun add-on to play with and opens up many creative options. Based on the early reviews I've read so far, it seems like a rare case of meeting all the expectations, faster, sharper and increased fov. Although I still feel it is on the pricey side, I am waiting for the OM SpeedBooster adapter before diving in.
     
  5. RDM

    RDM Mu-43 All-Pro

    Are there announced plans to make an OM version?
     
  6. Reflector

    Reflector Mu-43 Veteran

    406
    Aug 31, 2013
    When the EF adapter comes out, I think it would be a wiser decision to attach an adapter ring onto your OM lenses and then attach that to the Speedbooster. Given the EF adapter is going to have the shorter flange and you can practically adapt more lenses to it.

    As for "pricy" I would say otherwise. I definitely would not be getting a good deal for myself by reselling all my perfectly functioning optics and then buying a new set of optics that would not work on a future F mount body. If anything I think it'd be a wise decision to just Speedboost your existing optics and then slowly get a collection of m43 lenses over time. This means you end up with a nice set of autofocusing m43 lenses and a very high performance set of larger lenses. Especially if you own the fun lenses.

    Then again I must not comprehend why people go "Farewell, camerasystem. I will be joining the new system!" and then sell their gear at a significant loss. Well, at least that enables me to buy a bunch of perfectly functional lenses at a much lower price than usual, so I don't really mind either. (And I hope for this practice to continue so that I may buy perfectly functional lenses for significantly less, as it floats their boat and it definitely will float mine.)

    I'll be posting more samples when I get the chance to take the photos. The overcast weather is not helping.
     
  7. RnR

    RnR Mu-43 All-Pro

    Sep 25, 2011
    Brisbane, Australia
    Hasse
    I scanned their website, and there are zero mention of the OM version. Even in their FAQ section - "We will be looking into Canon FD, Minolta MD, M42 and Pentax K in the future." Its only 43rumours.com that has run two stories on such an adapter. I can't imagine that they would not make an OM adapter, but maybe the existing ones are not selling well. There was also a rumour about a Konica mount adapter, but nothing official as yet.
     
  8. Air-Cooled

    Air-Cooled Mu-43 Regular

    55
    Jul 27, 2012
    L.A.
    I was going by what I have read at our favorite rumor site a few times regarding the OM SB. Just keeping the hope alive, I don't think they have an official road map out :smile:
     
  9. zapatista

    zapatista Mu-43 Top Veteran

    668
    Mar 19, 2012
    Denver, Colorado, USA
    Mike
    I'd really like to see a Canon FD version. So many good cheap (and some not so cheap) lenses available.
     
  10. RDM

    RDM Mu-43 All-Pro

    Yea that's what I thought. One could always just get a Canon EF speed booster and use an OM - C/EF adapter, couldn't they?
    And I would love a Konica Adapter also, now that i have a nice set of those lenses in my arsenal, but i was looking at my AR-µ4/3 adapter today and it looks quite small, so maybe it would be too short to make such an adapter.

    Me too. I also have great FD mount lenses that I would love to couple to a speed booster.
    I have many lenses in three different mounts; in order of most lenses to least, it's Old Minolta MC/MD, Konica AR, and Canon FD. I would like some company to produce a focal reducer/booster adapter in any of those mounts, to µ4/3 body. Most of all MD.
    Although Canon lenses are the least numbered in my collection, I have some very good ones.
    Many of them I have listed in my Gear section on the about me tab.
     
  11. Reflector

    Reflector Mu-43 Veteran

    406
    Aug 31, 2013
    • Like Like x 1
  12. Reflector

    Reflector Mu-43 Veteran

    406
    Aug 31, 2013
  13. bredman

    bredman Mu-43 Veteran

    458
    May 30, 2013
    Sherwood Forest
    Pete
    Yup, it's a long agonising wait. I'd gladly get two or three of these things, the M42, Konica, and OM would be great (i assume M39 won't be possible). I'd even try Mitakon Lens Turbo but i'm beginning to wonder if they're turning their backs on M4/3.

    Back to OM, i did read somewhere that Olympus is working on their own focal reducer for OM lenses.
     
  14. Reflector

    Reflector Mu-43 Veteran

    406
    Aug 31, 2013
    Nikkor 50 1.2
    Wide open at 1.2 or maybe down to f/2.0
    [​IMG]
    http://imageshack.us/a/img534/820/kykg.jpg

    (And people call this thing soft. I bet they're the same people who say "m43 has no DoF" then go and screw up on a shot later on.)
     
  15. Reflector

    Reflector Mu-43 Veteran

    406
    Aug 31, 2013
    Tamron 90mm 2.8
    Wide open at f/2.8 or f/2.0 on the Speedbooster.
    [​IMG]
    http://imageshack.us/a/img89/7680/zute.jpg

    WB is different from the former image as I was experimenting with "keep warm colors" turned on.

    I don't remember the aperture used that night: Might be f/2.8 to f/4.0
    [​IMG]
    http://imageshack.us/a/img543/7811/xxbz.jpg


    Personal notes:
    Really nice, inexpensive lens with excellent optical performance. It doesn't make the E-M5 front heavy at all. The aperture ring is a nicer implementation for a D type lens, because a small spring loaded piece on the ring locks it down to f/32. Pushing it down and rotating the ring to another setting leaves it unlocked with no switches to mess with.

    Flares more than the 50mm f/1.2 when both of them are at f/2.8, don't shoot directly into lights unless you like to pretend you're JJ Abrams blinding the audience with more lens flares. Take a hood along and get a nice UV filter because you don't want to clean the recessed dust on this lens.

    Focuses super close with the hood on, your subject will be in focus roughly a half inch/centimeter from the hood when the lens is at maximum magnification(minimum focusing range).
     
  16. RDM

    RDM Mu-43 All-Pro

    As for the M42 and OM needs, you should still be able to get the EF adapter and use it with a cheep OM or M42 to EF adapter, right?

    Also I got the same feeling about Mitakon. But if no one comes out with an MD - µ4/3 booster soon, I was thinking of buying there MD adapter/Booster in NEX mount and Attempting to convert it to µ4/3. I would just need to find the difference in flange back distance to start.


    That would be cool, and make allot of sense for them to do.
     
  17. Luger718

    Luger718 Mu-43 Regular

    38
    Aug 13, 2013
    cant you put a fd to nikon adapter on the speedbooster?
     
  18. RnR

    RnR Mu-43 All-Pro

    Sep 25, 2011
    Brisbane, Australia
    Hasse
    The Canon FD register distance is much smaller than Nikon F, so to adapt an FD lens to the Nikon mount you would need lens elements in the adapter. Which destroys the image quality.
     
    • Like Like x 1
  19. Luger718

    Luger718 Mu-43 Regular

    38
    Aug 13, 2013
    • Like Like x 1