April 30, 2016, 05:15:32 AM

Author Topic: How do I blur background like in this video?  (Read 603 times)

Starfox

  • SX60 HS
  • **
  • Posts: 5
How do I blur background like in this video?
« on: April 26, 2016, 02:52:24 PM »
Hey guys, I am new to photography and I have lots to learn and I will enjoy the challenge and journey but right now I just need to know one thing. How exactly do I create this effect

Here you see a very clear picture of this guys face and the background is completely blurred out. I have a Canon EOS 70D

Thanks for any advice guys

canon rumors FORUM

How do I blur background like in this video?
« on: April 26, 2016, 02:52:24 PM »

takesome1

  • 1D Mark IV
  • ******
  • Posts: 944
Re: How do I blur background like in this video?
« Reply #1 on: April 26, 2016, 03:21:58 PM »
I see nothing. No file attached.

Aperture wide open (smaller number) can give a narrow DOF and can blur the background. You will need to shoot in the setting aperture priority or manual to do this.


The wider the lens the greater the DOF (depth of field) at a given aperture, the less you will see the blur effect.
« Last Edit: April 26, 2016, 03:24:42 PM by takesome1 »

Besisika

  • Canon 6D
  • *****
  • Posts: 429
  • 1DX, 5D III
Re: How do I blur background like in this video?
« Reply #2 on: April 26, 2016, 05:56:20 PM »
Indeed, we need to see the video you are referring to.
The biggest challenge in shooting video is focus, so if you rely on depth of field to get a blurred background then you could make a big mistake.
My way of achieving blurred background but keeping the subject in focus is compression and not shallow DOF. You can achieve this by the use of telephoto lens, examples are 300mm F4 or 400mm f5.6

Mt Spokane Photography

  • Zeiss 50mm F 0.7
  • ***********
  • Posts: 11910
Re: How do I blur background like in this video?
« Reply #3 on: April 26, 2016, 06:59:23 PM »
Hey guys, I am new to photography and I have lots to learn and I will enjoy the challenge and journey but right now I just need to know one thing. How exactly do I create this effect

Here you see a very clear picture of this guys face and the background is completely blurred out. I have a Canon EOS 70D

Thanks for any advice guys

You need a wide aperture lens, and likely need ND filters.  Its a bit of a advanced topic.  FF bodies are easier to get blurred backgrounds.

When you have a wide aperture lens set at say f/1.8, the background can be blurry, but ... there may be too much light to get a good exposure.  This is where a neutral Density (ND) filter comes in.  It reduces the light coming to the lens so that you can still have your lens set to f/1.8 and capture your video.

That's a pretty brief explanation, there are things like faster shutter speeds (Not much help for a D70) just the basic idea.  A good ND filter will not affect the colors in your video, poor ones can affect color and even cause weird artifacts.  Don't buy one of the cheap ones from Amazon, research for decent ones.

Hillsilly

  • 1D Mark IV
  • ******
  • Posts: 998
Re: How do I blur background like in this video?
« Reply #4 on: April 27, 2016, 01:39:13 AM »
A wider aperture lens is the easiest option. 

If you like doing things the hard way, a few other options come to mind:

1.  Your software should have some blur options.  Tweaking these settings and playing with thresholds might work.  If you're after some free software to do this, have a look at Davinci Resolve.

2.  If you want to get more creative, you could film the background with out the actors.  Then film the actors.  In post, you merge the two, mask the actors on their layer and blur the background only layer.  I find masking really painful, but in theory and with enough patience, this should work. 

3.  Film your actors in front of a green screen.  Then film the background.  Blur the background as much as you want to and substitute it for the green screen.  Most software should do this reasonably well.
Camera Obscura

canon rumors FORUM

Re: How do I blur background like in this video?
« Reply #4 on: April 27, 2016, 01:39:13 AM »