Recent content by 480sparky

  1. 480sparky

    Determining the height a photo was taken from

    It's due to perspective. Even using a modern rectiliner lens and stitching multiple images, the result would be the same. Here's what a P3A does when stitching multiple images: The streets on the right and left are straight, and run parallel to each other. No info available, but I'd be...
  2. 480sparky

    Determining the height a photo was taken from

    It was taken with a special panoramic camera. The camera rotates as film is drawn across a cylinder inside and uses a narrow slit for a shutter. It's easy to recreate such an image, even using a drone. Send 'er up, take a horizontal series of images and use special software to combine the...
  3. 480sparky

    Determining the height a photo was taken from

    No help. The ones that address an existing image require the FOV of the lens used. As panoramic cameras used rotating slit shutters projecting an image onto film being passed over a cylinder, they inherently do not have a 'native' FOV as they could be adjusted to any up to 360°.
  4. 480sparky

    Determining the height a photo was taken from

    I have an old photo (taken in 1909) that I have determined precisely where (relative to the ground) it was taken from, but I'm wondering if it's possible to use the features in the image to mathematically calculate the height at which it was taken from. I have positively identified 6 houses...
  5. 480sparky

    My fireworks video

    See post #4.
  6. 480sparky

    My fireworks video

    Final edit of last nights' video session:
  7. 480sparky

    My fireworks video

    Just a quick-n-dirty edit of the grand finale. A better edit will need to wait until the weekend. I didn't get up to 400' until 13 seconds into the video... I wanted to start with a fresh battery instead of having to land at an inopportune time.
  8. 480sparky

    Saw a fool flying a Phantom over a 4th of July parade.

    Idiots will be idiots. No amount of posting on innernets forums or legislation will eliminate them.
  9. 480sparky

    Capturing firework display on video.

    Five miles? You aren't gonna see much detail.
  10. 480sparky

    HAWK ATTACK - TOO UP CLOSE!!!

    Absolutely no way can a Phantom have that fast of a shutter speed to capture the wingtips like that. A real video would have blurred the wingtips.
  11. 480sparky

    Where to get remote pilot certificate?

    Just remember........ if you're in business, and use the drone, it all tax deductible. The drone, any prep classes, the test..........
  12. 480sparky

    Great. Just great!

    Probably the only thing they learned is how to run really fast to avoid being charged. Kids the way they are being raised today, they went home, had a great laugh, and posted it all on social media.
  13. 480sparky

    Great. Just great!

    Helicopter narrowly escapes dangerous drone collision
  14. 480sparky

    Suggestion for those who registered

    And it is. This is in addition to that.
  15. 480sparky

    AZ Screen Reorder Sample Video

    Um.... like the title of both the thread and the video say........ AZ Screen Recorder.