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| Too much power! https://paulcbuff-techforum.com/viewtopic.php?f=8&t=511 |
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| Author: | johnnyjomp [ Wed Apr 28, 2010 7:52 pm ] |
| Post subject: | Too much power! |
Hi everyone I have a pair of AB 800's, used almost exclusively for portraits. I find that they are putting out too much power (how about that for a change?). I want to shoot at 2.8-5.6, but am usually at F8-11, with a 24" softbox or a with a shoot-through PLM. the power turned WAY down (1/16th to 1/4). Any suggestions what I can do? posting.php?mode=post&f=8# Thanks in advance! JJ posting.php?mode=post&f=8# |
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| Author: | BigIronCruiser [ Wed Apr 28, 2010 9:01 pm ] |
| Post subject: | Re: Too much power! |
Choices I can think of include - lower ISO - bigger modifier - more distance between light and subject - feather the softbox - put an extra diffuser on (or in) the softbox - use some type of neutral density gel/diffuser over the strobe |
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| Author: | Luap [ Wed Apr 28, 2010 9:36 pm ] |
| Post subject: | Re: Too much power! |
Einstein goes two f stops lower than AB800 and one f stop higher. |
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| Author: | MichaelRose [ Wed Apr 28, 2010 9:42 pm ] |
| Post subject: | Re: Too much power! |
Add a neutral density filter to your lens! |
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| Author: | johnnyjomp [ Thu Apr 29, 2010 1:14 pm ] |
| Post subject: | Re: Too much power! |
Luap wrote: Einstein goes two f stops lower than AB800 and one f stop higher. If I spend any more money on camera stuff, I will be in deep doo-doo from my wife! |
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| Author: | johnnyjomp [ Thu Apr 29, 2010 1:18 pm ] |
| Post subject: | Re: Too much power! |
BigIronCruiser wrote: Choices I can think of include > that would make it even more difficult for the camera to focus in low light. I guess I can set up the lighting, then turn the modeling lights way up for focusing and shooting.
- lower ISO > I am down to 100 already - bigger modifier > trying to get away with not spending a ton of money. Have spent a lot recently on backgrounds, etc. - more distance between light and subject > good suggestion - feather the softbox > how??? - put an extra diffuser on (or in) the softbox > where can I get one? - use some type of neutral density gel/diffuser over the strobe |
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| Author: | alanbrowne [ Thu Apr 29, 2010 2:08 pm ] |
| Post subject: | Re: Too much power! |
Some white plastic or ripstop nylon over the softboxes will drop the light output pretty quick. These can be made with velcro added to make it an easy add on. |
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| Author: | BigIronCruiser [ Thu Apr 29, 2010 3:20 pm ] |
| Post subject: | Re: Too much power! |
johnnyjomp wrote: BigIronCruiser wrote: Choices I can think of include > that would make it even more difficult for the camera to focus in low light. I guess I can set up the lighting, then turn the modeling lights way up for focusing and shooting.- lower ISO > I am down to 100 already - bigger modifier > trying to get away with not spending a ton of money. Have spent a lot recently on backgrounds, etc. - more distance between light and subject > good suggestion - feather the softbox > how??? - put an extra diffuser on (or in) the softbox > where can I get one? - use some type of neutral density gel/diffuser over the strobe Feathering is just a matter turning the softbox such that it's not pointed directly at the subject. This won't be a satisfactory solution in all cases, but it costs nothing to try. Placing gels over the strobe will only affect focusing if you're depending primarly on the modelling light. Given that your shutter speed is probably around 1/200, room lights can usually be left on because they get overpowered by the strobe(s). |
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| Author: | Technical Support [ Thu Apr 29, 2010 3:50 pm ] |
| Post subject: | Re: Too much power! |
Be careful adding nylon. Some will be OK, some will flouresce. As BigIronCruiser said about ND filters, you can leave the room lights on, additionally, 2.8 lenses tend to focus well even in low light. Many cameras even have special focusing sensors for use with 2.8 lenses. Remember your lens is at max aperture when focusing. So if it can let in lots of light for an image, it supplies lots of light for focusing. |
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