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grisnjam

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Posts posted by grisnjam

  1.  

    After getting the GH4 + 12-35 f2.8 working on the DS1 (out of the box) I wanted to setup something lighter to see how it handles smaller cameras.

    When I am shooting a live event (i.e. weddings) I want to use the DS1 with my GX7 + 12mm f2.0 so I can just leave it on the gimbal all day and use my GH4 for my main cam.  With this in mind I set out to see if I could get this pair to balance and perform well on the DS1.

    I had little trouble balancing the pair (the GM1 + 12mm was just too tiny to really balance well) but the default profiles had way too much power for such a small combo.  Even profile 3 and 4 which come setup for smaller combos had the shakes pretty bad.  So I decided to try the auto tune ability of the 32b alexmos board as shown here by Emm:

     

    So I set the gimbal up on a sturdy tripod and stating with the profile 3 power settings I auto tuned the PID for each axis alone, twice (took about 15 mintues).  Much to my surprise when I removed the gimbal and tested it it worked really well with this lighter setup.  I then updated profile 3 and 4 to use then new PID settings.  

    Now I can fly the GH4 + 12-35mm or GX7 + 12mm with a quick rebalance and a simple profile change.  

    I plan on shooting the GH4 + 12-35mm over the holidays and I will report back with some actual footage early next year.

    Thanks,

     

  2. I'm pretty sure I read or saw in a review video that the DS-1 does have an inverted mode. Of course I couldn't find what I was thinking of, but I did find a pic of someone using it in inverted mode on the owldolly website:

    http://www.owldolly.com/blogs/news/81089028-ds1-and-ms1-stock-update-sony-a7sii-with-ds1-review-video

    Maybe shoot them an email asking how.

    The DS1 does do intervened mode for sure, I think he was just saying that with his camera body + PID settings the camera is not stable inverted.  PID tuning should make it work.

    See this video: https://www.youtube.com/watch?v=Jg-14SWbgx0

    Actually I am hoping that the auto PID tune feature of the 32bit board/GUI will really help with different body/lens combos.  The reason I gave up on the Nebula4000 Lite was the pure pain of PID tuning the light GM1+12mm ...

     

  3. That sounds like it's defective or needs to be calibrated. That's a drag for you no matter what the cause though.

    Yeah that does not sound right, was it well balanced?

     

     I have a DS1 arriving this week and I will report on my experience.

  4. It doesn't vignette on the Pocket with original Speed Booster. Good all the way.

     

    On 1.86x crop GH2 which turns into something slightly larger than the APS-C sensor the Sigma was intended for you do get some slightly dark corners at 18mm.

     

    So I am guessing that the 2.0x crop on the GH3 means that the 18-35 + Speedbooster + SLR Magic Anamorphot should work fine?  That's the combo I have my eye on.

  5. Quick question Andrew,

     

    In the Pocket Cam + Sigma 18-35 + Speedbooster article comments you mentioned that the GH2 + Sigma 18-35 + Speedbooster seems to get murky corners with the Sigma.  Does the 1.86x crop factor of the GH2 vs the 2.0x crop factor of the GH3 make a difference?  In other words how does the GH3 play with the Sigma 18-35 + Speedbooster when at 18mm (12mm effective)?

     

    I know this was a touch off topic but I am giving it one more try, since you tested the GH3 with the Speedbooster + Sigma 18-35 in this test any word on vignetting when at 18mm with the GH3/Speedboster/Sigma (like on the GH2)?

  6. Quick question Andrew,

     

    In the Pocket Cam + Sigma 18-35 + Speedbooster article comments you mentioned that the GH2 + Sigma 18-35 + Speedbooster seems to get murky corners with the Sigma.  Does the 1.86x crop factor of the GH2 vs the 2.0x crop factor of the GH3 make a difference?  In other words how does the GH3 play with the Sigma 18-35 + Speedbooster when at 18mm (12mm effective)?

     

    Thanks for all the amazing work you do.

  7. I think the backside of the adapter is 77mm, so it fits 77mm or smaller sized front threads of lenses. But that's just  how I read it; "V3 has a slightly larger form factor to accommodate for 77mm front filter threads."

     

    Actually the quesiton was explictlly about the front of the Anamonphic adapter:

     

     

    Also, I can't see from the images at EOSHD, will it have a front thread and if so what's the diameter?

     

    Answer:

     

     

    @stip the V2 anamorphic adapter that @ed_lee83 tested had a smaller form factor but has a "cap" kind of hood with no filter threads. V3 has a slightly larger form factor to accommodate for 77mm front filter threads.

     

    Seems pretty clear.

  8. Thanks for the great review. I ended up getting the HV9x after your last compact review and the one thing I don't like is the 30 minute record time limit on it. Do you know what/if the RX100 has a limit on the record time?

    Thanks,
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