NEX-6 + Lens Turbo 2 vs A7..a sample image at ISO 6400

Discussion in 'Sony Alpha E-Mount Cameras' started by shaolin95, Oct 8, 2014.

  1. shaolin95

    shaolin95 TalkEmount Top Veteran

    942
    Jul 3, 2013
    This is NOT any scientific test...just was dying to see what the NEX-6 with Lens Turbo 2 could do vs the A7 with my FD lenses at ISO 6400 so I went to the local store that has it and was able to snap a few quick shots. They have no display model so I was rushing thus sorry about the lack of a tripod and all those things. Just did the same settings and shoot away.

    This is A7 JPG (stupidly I forgot to set RAW+JPG..may need to go again) vs NEX-6 JPG vs NEX-6 RAW processed with DXO.

    I have been trying to determine if upgrading to the A7 is a wise decision for me right now thus my desire to do this quick test.

    Regards

    PS I did not check if the A7 has been updated as I recall reading the JPG engine got much better. I hope I can do the test with RAW during the weekend.


    So the following samples were taken with the Canon FD 35mm F2

    Sony NEX-6 stock JPG
    NEX6 Stock jpg by GabrielG2k11, on Flickr

    Sony NEX-6 raw processed with DXO

    NEX6 using DXO by GabrielG2k11, on Flickr

    Sony A7

    Sony A7 by GabrielG2k11, on Flickr
     
    • Like Like x 1
  2. fractal

    fractal TalkEmount All-Pro

    Jun 17, 2014
    Southeastern PA
    Chris
    Thanks for sharing!

    I'm considering buying a focal reducer for my NEX-7. I figure I can turn my two MD mount lenses into four. My Rokkor 50mm 1.4 can be turned into the equivalent of a 35mm 1.2 for crop ( does that make sense?).

    Regarding your comparisons - the Processed NEX-6 images compares favorable to the A7 image. The NEX-6 JPG not so much when you look at the shadows and noise.
     
  3. jai

    jai TalkEmount Top Veteran

    589
    Feb 4, 2013
    I think that with the same lens, and speed booster, the Nex 6 should have a 1 stop advantage. Wouldn't it be more fair to test the A7 at 6400 and the Nex 6 at 3200? Then the shutter speeds should roughly line up.
     
  4. jai

    jai TalkEmount Top Veteran

    589
    Feb 4, 2013
    I bought the metabones speed booster, thinking it would give me more options as you describe.

    In reality though, I never use my Minolta glass without it anymore. Just too good to go back.
     
    • Like Like x 1
  5. shaolin95

    shaolin95 TalkEmount Top Veteran

    942
    Jul 3, 2013
    Well I get the idea although I now think in terms of 35mm instead but same concept. :)
    I agree, I was expecting a lot more from the A7 vs a 6 with the LT and DXO but then again, I have read the JPG engine on the A7 was pretty bad before the updates so maybe that one was not updated. I need to use RAW for both for a more even comparison.


    Well, I wanted ISO to be equal first of all so I set all settings manually. Still my Exposure was showing 0 on the NEX-6 at the same settings but you can see how the JPG was actually brighter so there is indeed still some gain of light with the LT2 but not a full stop in my opinion compared to the A7 since I assume the A7 by nature has an advantage over the 6.


    Funny that the same thing happens to me. I rarely take the LT2 off my camera now but still is good to know if I need it, I can do it..like for moonshots.

    Regards
     
    • Like Like x 1
  6. jai

    jai TalkEmount Top Veteran

    589
    Feb 4, 2013
    It just goes to show, if you are going to use legacy lenses with a focal length reducer anyway, APSC is not that far behind full frame!

    At least in certain situations, and when viewing on a screen. Keeps me happy with my 5R.
     
    • Like Like x 1
  7. shaolin95

    shaolin95 TalkEmount Top Veteran

    942
    Jul 3, 2013
    Indeed! Of course there is dynamic range (luckily the 6 is no slouch at that either) and the extra resolution shows up on some areas, plus a lens like the 17mm seemed to work better on the A7 than with the LT2 (couldnt even focus to infinity with it) but overall, I was hoping for a dramatic ISO advantage at 6400 to make me go for an upgrade. So I guess my poor finances are happy with the results instead :D
     
  8. jai

    jai TalkEmount Top Veteran

    589
    Feb 4, 2013
    Perhaps in 6 months more, when an A7s costs what an A7 does now, then we can jump in to full frame
     
  9. shaolin95

    shaolin95 TalkEmount Top Veteran

    942
    Jul 3, 2013
    I wouldnt mind getting an A7 as I loved the EVF and I am sure the extra dynamic range and being able to use any legacy lens instead of having to own a LT2 for each brand (If i wanted different ones) is nice.
    Then again, is nice that my sensor does not get dirty since the LT2 is always on the way :D

    But yeah, I want to get a more dramatic improvement to move on, like a 6400 looking like 3200 on my nex-6 or even 1600...THAT would be awesome but without having to go to 12MP. The A7R is one I really like...somehow the cropping capability makes me drool....the sickness of pixel peeping lol
     
    • Like Like x 1