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| Max Setting for E640, AB800, and WL3200 at 10fps? http://www.paulcbuff-techforum.com/viewtopic.php?f=8&t=4351 |
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| Author: | Scott H [ Tue Feb 11, 2014 1:30 pm ] |
| Post subject: | Max Setting for E640, AB800, and WL3200 at 10fps? |
I've done a quick search but could not quite figure this out. On occasion, I need to shoot at 10fps, and am trying to figure out what the max settings of the Einstein, Alien Bee 800, and White Lightings can be so that will avoid overheating with the most light. How long can this rate be maintained (1 sec, 2 sec, etc). I don't use modeling lights when in this mode. Thanks! |
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| Author: | rms956 [ Tue Feb 11, 2014 1:37 pm ] |
| Post subject: | Re: Max Setting for E640, AB800, and WL3200 at 10fps? |
Info on Einstein from another post. http://www.paulcbuff-techforum.com/viewtopic.php?f=8&t=4276 RMS |
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| Author: | Technical Support [ Tue Feb 11, 2014 2:33 pm ] |
| Post subject: | Re: Max Setting for E640, AB800, and WL3200 at 10fps? |
For 10fps, you are looking at about 40Ws with Einstein. Probably 20-30Ws with AlienBees and WhiteLightning. This also assumes you are using an AC mains outlet. The power settings would be significantly lower with a VML. |
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| Author: | Scott H [ Tue Feb 11, 2014 2:50 pm ] |
| Post subject: | Re: Max Setting for E640, AB800, and WL3200 at 10fps? |
Technical Support wrote: For 10fps, you are looking at about 40Ws with Einstein. Probably 20-30Ws with AlienBees and WhiteLightning. This also assumes you are using an AC mains outlet. The power settings would be significantly lower with a VML. Tech support: Thanks for the info....any idea on the duration, i.e. more than 2 seconds? If I slightly exceed the parameters will the units trip before any damage is done? RMS956: Thanks! I did see this post and noticed the part: "At 1/16 power, Einstein™ can fire with a motor drive camera at 8 frames per second, 4fps at 1/8 power, 2fps at 1/4 power, etc. " Anyway to verify these rates and for how long and is there a formula based on watt seconds recycle rates? Thanks! |
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| Author: | Technical Support [ Tue Feb 11, 2014 6:10 pm ] |
| Post subject: | Re: Max Setting for E640, AB800, and WL3200 at 10fps? |
As long as you are not trying to exceed the recycle rate greatly, you can shoot for a couple of minutes without damage. As for what the recycle rate is, a loose way to determine that is by the 1.7s recycle time to 640Ws. 640/1.7=376Ws per second. Divide this by the number of shots per second you will be shooting, and that will roughly be your power setting. So, 376Ws/s divided by 10FPS= 37.6Ws. Or, if you know what power you need (in Ws), you can figure out how many (roughly) frames per second you can shoot. Lets say you need 1/8 power, this is 80Ws. So, 376Ws/s divided by 80Ws=4.7. Again, these are rough numbers and probably a little conservative. So, you can eek out a little faster frame rate than the math shows. |
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| Author: | Scott H [ Tue Feb 11, 2014 10:24 pm ] |
| Post subject: | Re: Max Setting for E640, AB800, and WL3200 at 10fps? |
Perfect...just what I was looking for. Thanks! |
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