Great examples and explanation! Would be awesome, if the Keldan light would be able to change from white to Blue, so you don't have to use a filter. Another question... Which filter would you recommend if I want to shoot below 3m but also deep? I know one of the filters is for 4m and the other for 8m.
Ÿes, we know that this would be great and we are working on a future product with variable color. R&D work is ongoing but it still need a lot of work to have it ready.
Thank you very much for the props and question theodoros Koulentis. This scene was in rather shallow waters, thus we used a 12B. The 12B is the most popular anyway. Yours, Keldan Team
Flo - I am also confused about the setting you used on the Manta shoot ion Socorro. Can you please tell us what filter is on the camera and what depth ambient filter you are using with the Lights?
One question: in case i dont wana use the red filter but only the filters on the light, would this work as well? I loose too much f stops with the filter on the lens.
With a correct white balance, the colors of the ligting will match the natural ambient light and you can get a neutral image. But if you don't use the spectrum filter you only solve the mixed light problem. The colors, although correctyl white balanced, may still not be satisfying and it may be difficult the get nice and correct colors even if you invest some time in color grading. The spectrum filter will improve a lot the color rendering and you will have better results with less work for color grading.
Tremendous work Florian and thank you. Info on the Keldan system is tough to come by and "BTM" has filled the void. At 90 feet were you still using the 10 meter light filter? How about the lens filter...-2 stops or -4 stops? Most of my diving is in Cozumel 50 to 80 feet and I am trying to figure out an acceptable combination. Thank you for sharing your work and am always looking forward to your future episodes. Dan
Thank you very much for your words Dan, we appreciate that! We do not recommend to use the filter system at depth beyond 60 ft. The red content is so weak below 60 ft. that the red channel gets very noisy if you do white balance your camera to the ambient light. There are two options for the depth range below 60 ft : 1) you can use the AF 12B filter with a spectrum filter 4B on the lens BUT you white balance your camera to the artificial light (not to the ambient light at your depth)
@@keldanlights Thank you for your response. I really appreciate it. I am fascinated by your concept and am very anxious to try it out. I have a Spectrum 4B and two ambient light filters 12B on order! Thank you! Dan
Great examples and explanation! Would be awesome, if the Keldan light would be able to change from white to Blue, so you don't have to use a filter.
Another question... Which filter would you recommend if I want to shoot below 3m but also deep? I know one of the filters is for 4m and the other for 8m.
Ÿes, we know that this would be great and we are working on a future product with variable color. R&D work is ongoing but it still need a lot of work to have it ready.
@@keldanlights awesome :-)
excellent video!! which filter you are uses on this video 6B or 12B??
Thank you very much for the props and question theodoros Koulentis. This scene was in rather shallow waters, thus we used a 12B. The 12B is the most popular anyway. Yours, Keldan Team
Flo - I am also confused about the setting you used on the Manta shoot ion Socorro. Can you please tell us what filter is on the camera and what depth ambient filter you are using with the Lights?
Hey Hey. I have been using the filters for about 10 meter depth on both camera and Lights. Cheers, Flo
One question: in case i dont wana use the red filter but only the filters on the light, would this work as well? I loose too much f stops with the filter on the lens.
With a correct white balance, the colors of the ligting will match the natural ambient light and you can get a neutral image. But if you don't use the spectrum filter you only solve the mixed light problem. The colors, although correctyl white balanced, may still not be satisfying and it may be difficult the get nice and correct colors even if you invest some time in color grading. The spectrum filter will improve a lot the color rendering and you will have better results with less work for color grading.
Tremendous work Florian and thank you. Info on the Keldan system is tough to come by and "BTM" has filled the void. At 90 feet were you still using the 10 meter light filter? How about the lens filter...-2 stops or -4 stops? Most of my diving is in Cozumel 50 to 80 feet and I am trying to figure out an acceptable combination. Thank you for sharing your work and am always looking forward to your future episodes.
Dan
Thank you very much for your words Dan, we appreciate that! We do not recommend to use the filter system at depth beyond 60 ft. The red content is so weak below 60 ft. that the red channel gets very noisy if you do white balance your camera to the ambient light. There are two options for the depth range below 60 ft :
1) you can use the AF 12B filter with a spectrum filter 4B on the lens BUT you white balance your camera to the artificial light (not to the ambient light at your depth)
2) Or simply use white light without filters and white balance to the lights
@@keldanlights Thank you for your response. I really appreciate it. I am fascinated by your concept and am very anxious to try it out. I have a Spectrum 4B and two ambient light filters 12B on order! Thank you!
Dan
@@MrRadrig You are welcome! (... sorry the answer was incomplete at first)
So it's a CTB filter on your lights
Yes, it is the same idea. But it is a conversion filter from daylight to the ambient light under water.