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Do you have a recommendation between the two for replicating sunlight for high-end photography?
I am a fine art photographer who uses sunlight for all photos. I am looking for a potential studio replacement. I purchased the 7001.50 today but did not see the 7001.65. Do you have a recommendation between the two for replicating sunlight for high-end photography?
Both the 5000K (D50) and 6500K (D65) do a great job of replicating natural light. Specifically, 5000K would be a close match to noon sunlight, while 6500K would be closer to noon daylight.
If using the "sunlight" white balance setting, the 5000K would likely appear to be a true white light source and would also match natural sunlight. On the other hand, if the camera's setting is set to overcast, the 6500K would likely be a better fit.
Below is an article comparing the two color points which you may find helpful:
https://www.waveformlighting.com/circadian/difference-between-5000k-and-6500k-bulbs
I think the D50 would make more sense because I try and use direct sunlight. However, in the CRI chart, the lower number for the R9 red channel has my attention. Is the lower R9 channel make a difference to what a camera sensor or analog film "sees"?
We believe we have also located the R9 differences in the photometric reports - We are seeing 97 vs 91 for the D65 vs D50, respectively.
Our analysis shows that R9 is a very "fickle" number that tends to exaggerate differences. As our article discusses, even the best residential light bulbs will typically have an R9 rating of 50, whereas standard 80 CRI office lighting may even have a negative R9 rating.
As such, we wouldn't worry too much about the 97 vs 91 difference, especially as these are individual tests on sample units that are susceptible to minor measurement discrepancies.
How can I get a power supply connection compatible with the WAGO female jacks on the strips?
We would recommend using PN 7092 for the easiest connection between the power supply unit and the WAGO terminal blocks. Below is a direct link to the product:
How can I get flexible cables with the WAGO pins.?
The WAGO pins (PN 7090) can only be used for end-to-end daisy chain connections. If a non-linear connection must be made, we would recommend utilizing low-voltage cable (similar to that used for PN 7092, above) to assemble them. Unfortunately, we do not offer a direct solution or product, however, virtually all low-voltage wires with an AWG rating between 18 and 24 should work well. (These wires are commonly marketed as "low voltage speaker wires" at hardware and electronics stores).
We do have an instruction guide for module assembly, which includes photos and further information, which we believe you may find helpful:
https://store.waveformlighting.com/pages/assembly-instructions-for-led-modules
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