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Wed Apr 28, 2010 7:52 pm

Joined: Wed Apr 28, 2010 7:46 pm
Posts: 3

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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Wed Apr 28, 2010 9:01 pm

Joined: Thu Apr 15, 2010 6:22 pm
Posts: 178
Location: Aiken, SC

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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Wed Apr 28, 2010 9:36 pm

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Joined: Tue Dec 08, 2009 11:49 am
Posts: 1432

Einstein goes two f stops lower than AB800 and one f stop higher.




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Wed Apr 28, 2010 9:42 pm

Joined: Mon Apr 19, 2010 11:40 pm
Posts: 7

Add a neutral density filter to your lens!




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Thu Apr 29, 2010 1:14 pm

Joined: Wed Apr 28, 2010 7:46 pm
Posts: 3

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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Thu Apr 29, 2010 1:18 pm

Joined: Wed Apr 28, 2010 7:46 pm
Posts: 3

BigIronCruiser wrote:
Choices I can think of include
- 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
> 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.




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Thu Apr 29, 2010 2:08 pm

Joined: Thu Apr 29, 2010 12:20 pm
Posts: 6

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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Thu Apr 29, 2010 3:20 pm

Joined: Thu Apr 15, 2010 6:22 pm
Posts: 178
Location: Aiken, SC

johnnyjomp wrote:
BigIronCruiser wrote:
Choices I can think of include
- 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
> 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.

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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Thu Apr 29, 2010 3:50 pm

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Joined: Tue Dec 08, 2009 10:43 am
Posts: 5266

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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