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I'm quite sure what you mean by sensor capacitance. Do you mean well capacity of the photodiodide?

There are two pathways from the dual gain sensor. Every photo-sites output is boosted to a target voltage level before it hits the ADC. The voltage level plus the well capacity determine the saturation point of the photo-site. The ADC matches the range of the incoming signal. In dual sensors, a separate pathway with lower than usual amount of gain is added. The lower amount of gain increases the saturation point(brings back the highlights). The difference in gain determines how many stops can be added to the top of the dynamic range of the dual gain system. The photo-site itself has a limited dynamic range, but this engineering trick acts like you are combining the readings of two photo-sites at the same location. It also doubles the processing power needed since you are combining 2 frames to get one.

Thanks for the replies, David and Robin. I have frames, but I am looking for better control over spill. Hence the barndoors and putting the diffusion close to the source. I am experimenting with falloff on sources very near to the subject, so the small size of the 1x1 panel isn't a problem.

Which diffusion material would do a better job, 1/4 white diffusion or opal frost?

What is the best diffuser to prevent multiple shadows from a 1x1 led panel? I want the diffuser close to the lights so I can use barndoors.

Thanks for your helpful reply Thank you for your helpful reply

If I put wheels and a 4.5 griphead on this stand http://www.bhphotovideo.com/c/product/600650-REG/Avenger_A1045CS_A1045CS_Steel_Combo_Stand.html would it be a decent choice for an 8x8 frame?

I'm gathering that the height of the stand isn't as important as it's weight and footprint. Are there many reasons you would go beyond 14' in height for a 8x8' frame?

What height of combo/rollers would be optimal for an 8x8' avenger frame. I have 2 11 foot combos, and I was wondering if 14-15 foot rollers would be better.