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DPChallenge Forums >> General Discussion >> New Strobes, wide aperture possible?
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Showing posts 1 - 12 of 12, (reverse)
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07/12/2010 01:31:30 PM · #1
I recently treated myself to a new set of 3 strobes, i already know how to use them and i know about the general set up, but...

I would like to get more DOF from my photos; but when shooting at 1/200th (sync speed) and to compensate shooting at f/8-f/9, depth of field is pretty much non-existent. I have tried setting my camera to iso100 and lowering the strobes to minimum power also but no attempts are getting even close to my dream f/1.8 without the image becoming completely blown.
07/12/2010 01:33:54 PM · #2
If you want more DOF you need higher f-stops than f8/9, like 11 or 16. f1.8 would give you less DOF than f8/9.
07/12/2010 01:37:24 PM · #3
sorry i phrased that wrong, i want a lower depth of field - like what you would get with f/1.8
07/12/2010 01:39:33 PM · #4
A neutral density filter would do the trick if you can't move the strobes further away from the subject.
07/12/2010 01:40:03 PM · #5
Strobes are powerful gizmos. You'll need to use ND filters for shallow DOF.
07/12/2010 01:42:39 PM · #6
okay thanks guys, i thought ND filters would be the only option. I was just hoping for an alternative on-camera or during setup. What opacity of ND filter would i need to get it down 8-ish f/stops?
07/12/2010 01:43:27 PM · #7
You could also try putting translucent screens in front of the strobes.
07/12/2010 01:45:59 PM · #8
Originally posted by TomCubis:

okay thanks guys, i thought ND filters would be the only option. I was just hoping for an alternative on-camera or during setup. What opacity of ND filter would i need to get it down 8-ish f/stops?
an 8-stop teeheehee
07/12/2010 01:46:46 PM · #9
ND grads are normally advertised along with their stop reduction e.g. //www.warehouseexpress.com/search/?q=neutral%20density so it should be easy to pick the right combination.
07/12/2010 01:47:18 PM · #10
Originally posted by GeneralE:

You could also try putting translucent screens in front of the strobes.


That would soften the light too much in some cases, but that would be okay over softboxes
07/12/2010 01:48:36 PM · #11
I think if you use Pocket wizards you might be able to use high-speed sync:

//www.youtube.com/watch?v=URYVtbDUrDI&feature=channel

eta: not sure about the details using high-speed sync. The strobes themselves may need to support it. In the link provided above I believe he is using Canon speedlights (if I remember correctly)

Message edited by author 2010-07-12 13:51:41.
07/12/2010 02:17:09 PM · #12
Just fired some test shots with my 17-70mm f/2.8 + ND8 filter

iso100, 1/200, f/2.8 .. worked great :D thanks!
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