Those are some nice looking Numitrons. If you find that you have way more of them than you can cope with - I would love to help! I am on a bit of a numitron mission right now. - Richard
On Sunday, 31 October 2021 at 12:05:50 UTC [email protected] wrote: > I'm no photographer, but I have the same or similar problem trying to > take photos of LED installations. I get a dim background and overexposed > leds, consequently no colours. I think the problem is that the autoexposure > adjusts for the average level, which is correct for neither on a > high-contrast scene. Our eyes can cope with this by correctly exposing the > segments and making the unlit parts invisible - which may not be what you > want when illustrating, but works well for reading the values whilst > obscuring the structure. > > The answer is possibly to run them at low brightness and with plenty of > incident light, so there is not so much difference in brightness between > self-lit and incidently-lit parts. > > On Sun, Oct 31, 2021 at 11:16 AM Bartek Ogryz <[email protected]> > wrote: > >> Hi everyone! >> I would like to proudly share my latest catch: Apollo DA2500 numitron >> tube. It's the biggest numitron I know, the digit is 25mm high - 5mm more, >> than IV-13. >> It's fully operational, but unfortunatelly my camera is unable to make a >> nice looking photo of the segments glowing. Last photo is a comparison to >> IV-13. >> >> Bartek. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "neonixie-l" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web, visit >> https://groups.google.com/d/msgid/neonixie-l/988ace97-ec8c-46ac-9cb5-ef564cac88c3n%40googlegroups.com >> >> <https://groups.google.com/d/msgid/neonixie-l/988ace97-ec8c-46ac-9cb5-ef564cac88c3n%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/ffc2b609-4f7d-4830-b265-e3dae64a9652n%40googlegroups.com.
