November 26, 2014, 07:56:57 PM

Author Topic: How much light(watts) do you need to shoot f8 to f11 in studio  (Read 7064 times)

pwp

  • 1D X
  • *******
  • Posts: 1615
    • View Profile
Re: How much light(watts) do you need to shoot f8 to f11 in studio
« Reply #15 on: April 27, 2013, 04:10:56 AM »
What you want is a couple B800s. But if you can spring the extra $80 / head for the B1600s, you won't regret it.
Are you sure?  The B1600 has a 640 Ws max like the Einstein, but only a 6-stop (vs. the Einstein's 9-stop) range.
+1 The ability of the Einstein to dial right down to something like 2.5 w/s can be incredibly useful.

-PW

canon rumors FORUM

Re: How much light(watts) do you need to shoot f8 to f11 in studio
« Reply #15 on: April 27, 2013, 04:10:56 AM »

yellowkamper

  • Power Shot G7X
  • **
  • Posts: 27
    • View Profile
Re: How much light(watts) do you need to shoot f8 to f11 in studio
« Reply #16 on: April 27, 2013, 06:16:11 AM »
Are you shooting head and shoulders, full length or a family group. Is the flash at 4ft or 15ft are you using a straight reflector, off a brolly , though a brolly or in a soft box.
All factors will make a difference 

Maui5150

  • Canon 7D MK II
  • *****
  • Posts: 468
    • View Profile
Re: How much light(watts) do you need to shoot f8 to f11 in studio
« Reply #17 on: April 27, 2013, 07:20:37 AM »
Wrong question. 

W/S has little to do with what you want.  It is more about light modifiers, distance and what kind of light you want.  What is the distance from the subject?  Are you shooting head shots, or will you be doing full body?

It also depends if you ever want to shoot at lower apertures.

You can have some strobes that are rated at higher WS and put out less power than a lesser one. 

Also, what are you looking for recycle time. 

John

  • PowerShot G1 X II
  • ***
  • Posts: 39
    • View Profile
Re: How much light(watts) do you need to shoot f8 to f11 in studio
« Reply #18 on: April 27, 2013, 08:14:50 AM »
u should think about getting lights that range from 375 to 750. 500 w/s would be a nice compromise. 375 will work best at very close distances. the 750's will work from most any distance and allow you to go to f16 if u want to do that (which u probably won't). i have a couple of 375's and mostly 750's in my relatively small studio (15' x 20'). i use bowens professional lights and i like them.

sanj

  • 1D X
  • *******
  • Posts: 1649
    • View Profile
Re: How much light(watts) do you need to shoot f8 to f11 in studio
« Reply #19 on: April 27, 2013, 09:51:55 AM »
Wrong question. 

W/S has little to do with what you want.  It is more about light modifiers, distance and what kind of light you want.  What is the distance from the subject?  Are you shooting head shots, or will you be doing full body?

It also depends if you ever want to shoot at lower apertures.

You can have some strobes that are rated at higher WS and put out less power than a lesser one. 

Also, what are you looking for recycle time.

Of course!

Dylan777

  • Canon EF 400mm f/2.8L IS II
  • *******
  • Posts: 4276
    • View Profile
Re: How much light(watts) do you need to shoot f8 to f11 in studio
« Reply #20 on: April 27, 2013, 10:08:12 AM »
Thanks everyone for your input and little lesson about distance, headshot, full shot and family portrait.

Bodies: 1DX -- 5D III
Zooms: 16-35L f4 IS -- 24-70L II -- 70-200L f2.8 IS II
Primes: 40mm -- 85L II -- 135L -- 200L f2 IS -- 400L f2.8 IS II

mingyuansung

  • PowerShot G1 X II
  • ***
  • Posts: 39
  • 5D3
    • View Profile
Re: How much light(watts) do you need to shoot f8 to f11 in studio
« Reply #21 on: May 22, 2013, 04:04:42 PM »
So have you decided something yet? Or maybe use 2 speedlights with soft boxes someone suggested since you are using your garage?
5D3, 24 f2.8, 24-70 f2.8 L II, 50 f1.4, 85 f1.2 L I, 100 f2, 100 f2.8 IS L, 70-200 f2.8 IS LII

canon rumors FORUM

Re: How much light(watts) do you need to shoot f8 to f11 in studio
« Reply #21 on: May 22, 2013, 04:04:42 PM »

AudioGlenn

  • Canon 6D
  • *****
  • Posts: 351
    • View Profile
Re: How much light(watts) do you need to shoot f8 to f11 in studio
« Reply #22 on: May 22, 2013, 04:36:07 PM »
I know this might be slightly off topic, but I do just fine with a 600 ex-rt, a 430 ex II.  Sure my recycle times aren't what they could be with studio strobes but at 1/16 power on both of them (1-softbox, 1-umbrella), I'm between f/5.6-f/8 @ISO 320, 1/160th sec., AND they're portable.  I'm sure I could bump up the power and lower the ISO to 100 for similar apertures.
5D mkIII  |  40 f/2.8 | 8-15 f/4L | 24-70 f/2.8L II | 70-200 f/2.8L IS II | 1.4x III TC | 600ex-rt | 430 ex ii | EOS M+22mm f/2 | EF to EF-M adapter

canon rumors FORUM

Re: How much light(watts) do you need to shoot f8 to f11 in studio
« Reply #22 on: May 22, 2013, 04:36:07 PM »