Newsmeldung von slashCAM: Basic Video Production: Video Production Basics: Lechtstoffröhren - Disadvantages Of rudi - 25 Dec 2009 06:55:00
Antwort von ruessel:
-In a bad start, some electronic tubes tend to have a slight flicker. It is not a bad start electronics, but the direct 50Hz grid connection. Unless you called everything except electronic ballast is bad ;-)
Only when Shutter 1 / 50 or more, the video is not unpleasant flicker.
Due to the mains frequency (50Hz or 60Hz) extinguishes the lamp with conventional ballast in the area of each zero crossing. There will be light and dark phases in the 100 - and 120-Hz rhythm ( "flicker"), may cause the stroboscopic effects that may manifest themselves in fast motion or mimic in rotating machinery, a slow or standing machine.
It is interesting that even synonymous Page: http://www.hereinspaziert.de/colors.htm
Antwort von s-a-l-s-a:
Hello Ruessel,
Of maybe you can tell me where to buy fluorescent lamps with Vollspektrumlichtfarben (ie Ra 90-100) +! Shatterproof! . call
Thank you in advance.
Furthermore pleasant Christmas wishes
salsa
Antwort von ruessel:
With splinter protection I know of none. Possibly. could be itself a plexiglass window in front draufschrauben (caution, waste heat must get out!).
I bought my here: www.foto workshop-mainz.de equal with practical and sturdy carrying case. There are parts of synonymous cheap Wallimex .... The DULUX-L Ersatzröhren (Ra = 98) but very cheap to buy on the Internet at a Leuchstofflampenhändler. Approx. 7, - Euro per tube ....
Antwort von PowerMac:
Hello Ruessel,
Of maybe you can tell me where to buy fluorescent lamps with Vollspektrumlichtfarben (ie Ra 90-100) +! Shatterproof! . call
Thank you in advance.
Furthermore pleasant Christmas wishes
salsa 1. Here we are speaking terms.
2. A full spectrum, which will come close to daylight and the Ra-index have nothing to do with each other. The occurrence of one often correlated with the occurrence of the other, a equating the two is false.
Antwort von ruessel:
Here are details relating to:
http://www.cf-photo-video.de/Neuheiten/FL-2000/fl-2000.html
etc.
Antwort von ruessel:
A full spectrum, which will come close to daylight and the Ra-index have nothing in common The Color Rendering Index (CRI) is the color rendering index, which is used for the characterization of light sources. He is an index for the naturalness of the color. The higher the color rendering index, which is referred to as CRI or Ra-value, the more natural color rendering and the nicer they are perceived. The size of the Ra-value is between 0 and 100 and are relevant for the Color performancevon lighted objects.
The color rendering index is a comparison with the spectrum of the lighting of lamps or light emitting diodes can be compared. Sunlight has a color rendering index 100th There is a classification of the color rendering index, then an Ra value of 95 is considered excellent, one of 90 classified as fair and one of 80 as poor.
Antwort von ruessel:
Light Kit, DIY
;-)
Antwort von volkmar:
Hello,
I had researched on the topic synonymous before, but with the aim to establish a standard-compliant lighting for color assessment on video monitors in the control room / post-production room (standard illuminant D65) ... I found the Philips MASTER TL-D De Luxe (color rendition index 1A, Ra> 90, light colors 930, 940, 950 and 965) and Philips MASTER TL-D Graphica (color rendition index 1A, Ra 98, light colors 950 and 965).
See also:
http://www.lighting.philips.com/de_de/architect/lam_prod_news/product_news_graphica.php?main=de_de&parent=24404188919&id=de_de_lamps_product_news&lang=de
http://www.leuchtmittelprofi.de/index.php/cat/c88_Philips-TL-D-90-De-Luxe-Pro.html
http://www.leuchtmittelprofi.de/index.php/cat/c89_Philips-TL-D-90-Graphica-Pro.html
Best regards,
Volkmar
Antwort von domain:
All fluorescent tubes and Enerergiesparlampen on this basis in the foreseeable future will be quite out, no preference on which sector they are only temporary solutions.
The best way to develop now observed in the LCD / TFT sector in the backlight based on LED technology and further synonymous with Luxeon, which already correct "replacement bulbs" and "fluorescent tubes produce" that fit into the standard versions.
