Recent content by Jim Roof

  1. J

    DJI Phantom 4 Pro image versus Canon 5DIII w/ 16-35 f/4

    This thread was actually comparing the two cameras that I own that are about the same megapixel count - my 5DIII and the P4P. It was in response to a couple of threads in which some were feeling that the image quality was not up to par with the P4P. It turns out that at least one of those...
  2. J

    DJI Phantom 4 Pro image versus Canon 5DIII w/ 16-35 f/4

    IF the 5D image truly looks blown out (values that are clipped at white) then it is going to be your monitor. The image has no clipping other than the white text. It gets close in the brightest spots (251, 250, 254) but not truly blown out.
  3. J

    Photos and P4 Pro: can we reduce distortions?

    I think one of the problems with this kind of topic is the way we sort of use the term 'distortion' very loosely. I have shot with wide angle lenses for 40 years now and have owned some of the best wide angle lenses ever made (Schneider and Rodenstock lenses for large format and now some very...
  4. J

    Photos and P4 Pro: can we reduce distortions?

    What this person is describing is NOT distortion. It is a function of the focal length and the angle of view. Photoshop cannot help with this.
  5. J

    Photos and P4 Pro: can we reduce distortions?

    What you are seeing is not a distortion. The trees near the edge of the photo are appearing in the photograph just as they would appear to a person viewing the scene from the same location as the camera. There is a complex issue of 'mental imaging' that is also at play here. If you were...
  6. J

    Initial Titan Conquer range extender review :-\

    I agree. I start to have a hard time finding my P4P at times 1000 feet out. At dusk I can see it better due to the little Strobon strobes I have, but there have been times when I have glanced down at my screen in the middle of the day and then looked back up to what appears to be empty sky...
  7. J

    Initial Titan Conquer range extender review :-\

    This whole thing came up because one irresponsible person here was claiming that the operating range of the P4P was the equivalent of an endorsement to fly it at that range. I reminded this person that Part 107 Pilots have to fly VLOS and he said he would fly his wherever he **** well pleased...
  8. J

    Initial Titan Conquer range extender review :-\

    The software could be designed to lose contact at 1 mile, or to disable it from going any further. However, I was speaking of the range of the SIGNAL. It would be impossible to create a radio signal that would work reliably up to one mile then, at 1.1 miles, the SIGNAL ceases to exist.. Radio...
  9. J

    I Lost my P4P

    That area is about 3 miles south of me. Not sure if there is anything I could do to help, but I am willing. If it went down in the subdivision then you have to factor in the human element in addition to any failures of technology.
  10. J

    How to view your 4k video?

    I am running an i7 as well, with 48 gigs of ram and the 1060 6gig Nvidia card. VLC cannot get through a single frame of 4K h264 video. It breaks up and halts and is an absolute disaster. KMP Player breezes through 4K/60 like it is a hot knife slicing butter. VLC... useless. This is a...
  11. J

    How to view your 4k video?

    What did you do to get VLC to play 4K at 60fps? I have a quick computer and an Nvidia 1060 6gig card. VLC is HORRIBLE on my box but KMP plays it flawlessly. I would love to get VLC to work. It is completely useless for me at this point in time for 4k.
  12. J

    4K 60FPS?

    I cannot get your video to play full screen so it is impossible to evaluate it... Firefox, latest version.
  13. J

    Aug 21, total solar eclipse video?

    There is a small town in North Georgia that is right on the middle of the path. I am wondering if I should book a hotel (it is about a 90 minute drive) or just drive up the day of the eclipse. I am sort of wondering how much this town might attract traffic... hotels are scarce and they appear...
  14. J

    Aug 21, total solar eclipse video?

    I live about 90 minutes from the path of totality and may take my bird with me. Let me ask you this, I have only been in central part of the path for one eclipse, but it was annular so there was always light peaking around the moon. How quickly does the drop in light take place at the height...
  15. J

    CREE Strobon Lights help?

    Here's where I put mine - 2 red in the front and 2 white in the rear. Might get one more white for the very top.