Random Photos

  • Thread starter Thread starter Point Conception
  • Start date Start date
  • Tags Tags
    Photos Random
Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
3,964 replies · 287K views
collinsmark said:
Yes and yes. But you don't need a special near-IR filter to see that effect. Just point your camera as-is (even if it's a cell phone or webcam; most any digital camera will do) at the remote control and look at your camera's "live view" screen, where you can "see" what the camera sees, then press buttons on the remote. You should see the remote's IR LEDs light up by looking through the digital camera (so to speak).

The near-IR filter merely blocks out any distracting visible light, making the effect more pronounced, assuming the camera has the ability to adjust its ISO and/or exposure time accordingly.

Thanks again! Another significant advantage of using 'live view' is ease of focusing- once upon a time I shot a roll of Ilford SFX Infrared and had to adjust focus to account for chromatic aberration. Because (at the time) there is nothing to see and focus on through the viewfinder, the lens barrel has a red dot that I had to remember to adjust focus accordingly. And since metering didn't work, I had to guess that also.

Needless to say, in the end I had a roll of unfocused and underexposed garbage. Ah... the bad ol' days :)
 
  • Like
Likes   Reactions: BillTre, collinsmark, DennisN and 1 other person
Physics news on Phys.org
Andy Resnick said:
Needless to say, in the end I had a roll of unfocused and underexposed garbage. Ah... the bad ol' days :)
That and previous unquoted part of the post means, at least you learned skills for old-style photography.
 
  • Like
Likes   Reactions: Andy Resnick and BillTre
Interesting, I asked the girl in this electronic shop for a blue light. She gives me UV. The white tile deck is glowing purple .
IMG_20261009_181544.webp
IMG_20261009_182229.webp
 
  • Like
Likes   Reactions: DennisN and Andy Resnick