Lens Turbo II Minolta MD > m43

Discussion in 'Adapted Lenses' started by Zuri, Aug 24, 2016.

  1. Zuri

    Zuri Mu-43 Regular

    156
    Apr 20, 2016
    Hey

    I just received the adapter and while I do see the gain on light, the focal range seems to be pretty close to the lens focal length.

    I'm using it in Minolta MD 50/1.4, and with the speedbooater it should be around 35mm. But from what I see its more like 45mm. How could it be?

    I tested it be taking the same photo with the lens+the speedbooster and with my 14-42 @ 35mm. My zoom set @ 35 is a lot wider...

    Any idea??

    Thanks
     
  2. barry13

    barry13 Super Moderator; Photon Wrangler

    Mar 7, 2014
    Southern California
    Barry
    Hi, are you comparing at close or far focal distances? Some lenses act weird close-up.
     
  3. Zuri

    Zuri Mu-43 Regular

    156
    Apr 20, 2016
    I guess at close? Not sure. Here are two photos - one with a regular md > m43 adapter and the second the LTII

    20160824232520. 20160824232534.

    Does it look like 50mm vs 35mm ?
     
  4. tkbslc

    tkbslc Mu-43 Hall of Famer

    So I got my ruler out and in one shot the glass measures about 3.33" and in the other about 4.5". That's a difference of .74, so given that I don't have super accurate calipers, I'd call it about perfect.
     
    • Like Like x 1
  5. Zuri

    Zuri Mu-43 Regular

    156
    Apr 20, 2016
    I'll do more testings later as I'm out of home right now. I got other sample where I took a photo with my 14-42 @ 35 and the 50/1.4 with the LT and the photo with the zoom was way wider.

    I'll post it later today.
     
  6. tkbslc

    tkbslc Mu-43 Hall of Famer

    With close range, there are a lot of variables. If the 50mm lens combo is physically longer, then it is closer to the subject and will look less wide. Try it outside with something distant and compare.

    Also, your 50mm may actually be a 53mm or something. Most primes are rounded.
     
  7. Zuri

    Zuri Mu-43 Regular

    156
    Apr 20, 2016
  8. barry13

    barry13 Super Moderator; Photon Wrangler

    Mar 7, 2014
    Southern California
    Barry
    I'd be interested in more pics when you have a chance; I'm thinking of buying one for my Rokkors.
     
    • Agree Agree x 1
  9. Zuri

    Zuri Mu-43 Regular

    156
    Apr 20, 2016
    I'll post when I'll have some time to play with it. I'm amazed by the light gain to be honest.

    The photos I attached earlier I took with A priority wide open with auto ISO, and the ISO chosen by the camera was 5000. This was with a regular adapter.

    Then I took the same photo, same everything, and the ISO chosen by the camera was 2500. Pretty impressive I'd say (see attachments).

    I'd buy it again just for the light gain.

    I think it's a tad sharper too, but I'll need to investigate further to be sure.

    IMG-20160824-WA0031. IMG-20160824-WA0029.
     
    • Like Like x 1
  10. Zuri

    Zuri Mu-43 Regular

    156
    Apr 20, 2016
    By the way which Rokkors are you using?
     
  11. barry13

    barry13 Super Moderator; Photon Wrangler

    Mar 7, 2014
    Southern California
    Barry
    58/1.2
    135/2.8

    I've also got a 28/3.5 and a 200/4.5 that I haven't tried (they came with the 58mm).
     
  12. tkbslc

    tkbslc Mu-43 Hall of Famer

    I think you are morally obligated to get a reducer for that lens. 42mm f0.85 would be fantastic! :)
     
    • Agree Agree x 3
  13. barry13

    barry13 Super Moderator; Photon Wrangler

    Mar 7, 2014
    Southern California
    Barry
    I've now ordered one from the same eBay seller as above... it's on a slow boat from China...

    I'm also looking forward to 96/2.0 (from the 135mm). I've been looking for a 90-105mm portrait lens but now I realize I probably don't need one.
    I am still looking for a long macro lens though.

    Maybe I should look for a Rokkor 50mm (1.4 or 1.8) or 45mm f2 also... I wonder which is best near wide open on the lens turbo.

    I'm thinking of getting a Rokkor 58/1.4 and if it's satisfactory I may be selling the 1.2, as $500-600 would be quite useful for other things.

    I've been looking for a long telephoto; I saw a Rokkor 300/4.5 online, but it's over 1kg and I haven't seen many image samples. It doesn't have a stop at f/5.6 which is annoying. They're cheap though.
     
  14. stratokaster

    stratokaster Mu-43 All-Pro

    Jan 4, 2011
    Kyiv, Ukraine
    Pavel
    If I recall correctly, 58/1.4 is incompatible with the lens turbo II (its rear lens collides with the glass inside the LT)
     
  15. Zuri

    Zuri Mu-43 Regular

    156
    Apr 20, 2016
    What type of things you shot with 135mm? Or going to with 98mm with LT? I wish we had something like 35/1.4, it would turn it to 25/1.
     
  16. barry13

    barry13 Super Moderator; Photon Wrangler

    Mar 7, 2014
    Southern California
    Barry
    Doh! Thanks though.
    Is there a full list somewhere?

    I hope the 58/1.2 is OK. I guess I'll know when the boat gets here.
     
  17. barry13

    barry13 Super Moderator; Photon Wrangler

    Mar 7, 2014
    Southern California
    Barry
    I took it to the duck park and got a pic I'm very happy with:
    SHOW: Before and After Shots
    and a couple more samples:
    Showcase - Minolta 135mm f/2.8 MD Tele Rokkor

    I also took it to a HS football game:
    Sigma 60mm f2.8 DN Lens for nighttime sports?
    (2nd pic there)

    There are times I don't like to take the 40-150Pro out due to size/weight, vague/inconsistent size rules at venues (e.g. Staples Center), etc., and not wanting to risk having to leave it in the car.
    The 135mm is much smaller and cheaper so I don't need to worry hesitate with it.

    With the LT (@98/2.0), I'd probably use it for concerts, night sports, street candids (prefer zooms though), and maybe a rare portrait (I don't do portraits except for family)...
     
  18. stratokaster

    stratokaster Mu-43 All-Pro

    Jan 4, 2011
    Kyiv, Ukraine
    Pavel
    • Informative Informative x 2
  19. barry13

    barry13 Super Moderator; Photon Wrangler

    Mar 7, 2014
    Southern California
    Barry
    I found a comment on Zhongyi's page saying the rear element must not protrude more than 3mm... where are my calipers (and do I have any big enough for the lens)?
     
  20. barry13

    barry13 Super Moderator; Photon Wrangler

    Mar 7, 2014
    Southern California
    Barry
    Thanks... it looks like the aperture pin on the 58/1.2 is going to be a problem. I agree with some other commenters online that permanently removing the pin from a $600 lens seems unwise. Unfortunately, I can only find instructions for cutting it, even after disassembly.

    Also, it looks like some versions of the 58/1.4 have a protruding rear element that forgoes compatibility, but the 'MC II' version is supposedly OK.

    Barry