Thread: Zacuto Kameleon EVF - Refresh issues?

Reply to Thread
Results 1 to 7 of 7
  1. #1 Zacuto Kameleon EVF - Refresh issues? 
    Member Nathan Ryan's Avatar
    Join Date
    Mar 2008
    Location
    Halifax, NS, Canada
    Posts
    68
    Hey all! I've been testing a Zacuto Kameleon EVF with a Gemini 5k and while the image is pretty fantastic as a static shot, there seems to be judder on panning shots. Can anyone give some insight into what is going on here? I don't have a Red EVF to compare OLED technology. There seems to be either ghosting or shearing of the image on pans.

    - It doesn't matter if I connect HDMI or SDI
    - It doesn't matter if I change output frame rates 24-60 Hz (24 fps project rate)
    - I've had a Sony A6300 connected with HDMI and the issue persists

    Is this just a function of OLED? Is this a bad unit? Is it just a crappy product?

    Thanks friends!
    Reply With Quote  
     

  2. #2  
    It’s not the OLED tech itself, I have several OLED monitors and VF’s. See if there is a menu adjustment in the Zacuto. One of my monitors is a smallHD Focus OLED and it has a setting in it to accommodate to properly display different signals. I normally shoot 23.98, but had to do a “PAL”(25P) shoot on my F55 and the image was tearing whenever I moved. Switched the setting and it was rock solid. I believe smallHD calls it “Bob” and “Weave” or something like that. I have no idea what the Zacuto would be, because I don’t think my Graticle has a similar function.
    Reply With Quote  
     

  3. #3  
    Senior Member Patrick Tresch's Avatar
    Join Date
    Aug 2007
    Location
    Switzerland, Lausanne
    Posts
    5,097
    I Don't see this probleme here. I tested one with 25p frame rate.
    Reply With Quote  
     

  4. #4  
    Member Nathan Ryan's Avatar
    Join Date
    Mar 2008
    Location
    Halifax, NS, Canada
    Posts
    68
    Thanks for the replies, guys!
    Christopher - I did look for a frame rate setting, but it seemed like the unit was autodetecting what was being fed it.

    Patrick - glad to hear it's not a function of the unit. Maybe I just have a bad copy or are otherwise doing something wrong. Zacuto tech support finally got back to me - hopefully they will bring some joy into the situation.
    Reply With Quote  
     

  5. #5  
    Quote Originally Posted by Nathan Ryan View Post
    Thanks for the replies, guys!
    Christopher - I did look for a frame rate setting, but it seemed like the unit was autodetecting what was being fed it.

    Patrick - glad to hear it's not a function of the unit. Maybe I just have a bad copy or are otherwise doing something wrong. Zacuto tech support finally got back to me - hopefully they will bring some joy into the situation.
    It wasn't for frame rates, per se. I believe it is actually for progressive and interlaced signals. I think the F55 spits 23.98 out as PsF which is seen as interlace instead of a true progressive signal, which is probably why I had to switch the setting when I went from 23.98 to 25P.
    Reply With Quote  
     

  6. #6  
    Member Nathan Ryan's Avatar
    Join Date
    Mar 2008
    Location
    Halifax, NS, Canada
    Posts
    68
    I've done more testing with this, and I think it's my eyes - I am very sensitive to refresh rates. I tested it on a C300 mkII and noticed similar behaviour with the built in EVF on that camera. I guess having the screen so close to my eye with no ambient light exacerbates the issue. I don't notice it on field monitors or the red/canon LCDs. DLP projectors and LED xmas lights (while driving) also drive me crazy. o__o
    Reply With Quote  
     

  7. #7  
    Senior Member Patrick Tresch's Avatar
    Join Date
    Aug 2007
    Location
    Switzerland, Lausanne
    Posts
    5,097
    Quote Originally Posted by Nathan Ryan View Post
    I've done more testing with this, and I think it's my eyes - I am very sensitive to refresh rates. I tested it on a C300 mkII and noticed similar behaviour with the built in EVF on that camera. I guess having the screen so close to my eye with no ambient light exacerbates the issue. I don't notice it on field monitors or the red/canon LCDs. DLP projectors and LED xmas lights (while driving) also drive me crazy. o__o
    You are a 100hz guy, the evolution of Homo sapiens+ ;-)
    Reply With Quote  
     

Tags for this Thread

View Tag Cloud

Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts