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Background blur

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Thread replies: 25
Thread images: 4

File: IMG_0244.jpg (476KB, 1280x1920px) Image search: [Google]
IMG_0244.jpg
476KB, 1280x1920px
If you weren't able to get the background to blur in an otherwise good shot, will using the photoshop method of blurring the background be just as good? Pic unrelated

[EXIF data available. Click here to show/hide.]
Camera-Specific Properties:
Equipment MakeCanon
Camera ModelCanon EOS 5D Mark III
Camera SoftwareAperture 3.6
PhotographerDavid M Levandusky
Maximum Lens Aperturef/2.7
Image-Specific Properties:
Image OrientationTop, Left-Hand
Horizontal Resolution200 dpi
Vertical Resolution200 dpi
Image Created2016:04:15 17:14:28
Exposure Time1/100 sec
F-Numberf/4.5
Exposure ProgramManual
ISO Speed Rating320
Lens Aperturef/4.6
Exposure Bias0 EV
Metering ModePattern
FlashNo Flash, Compulsory
Focal Length155.00 mm
Color Space InformationsRGB
Image Width1333
Image Height2000
RenderingNormal
Exposure ModeManual
White BalanceManual
Scene Capture TypeStandard
>>
Slow day.
>>
No.
>>
>>3087472
How so
>>
File: boy.png (103KB, 325x283px) Image search: [Google]
boy.png
103KB, 325x283px
>>3087394
>If you weren't able to get the background to blur in an otherwise good shot,

how could you not "blur" the background? is aperture priority too hard to figure out?
>>
>>3087476
I had forgot to set the aperture to a lower number. I quickly fixed it but the thing is, I took a great shot without the background being blurred like it should..
>>
>>3087480
TFW you fall so hard for the bokeh meme that you cant imagine a picture looking good without muh blur.
>>
You background blur homos disgust me so much I'm shooting f/4 and above from now on. maybe the occasional 2.8 (cuz I totally wasn't doing this already).
>>
>>3087491
same here, f4 on 6x7 is the best
>>
>>3087475
Things that are close to the plane of focus will be more in focus than things further from the plane of focus. So, to perfectly fake out of focus blur requires that you separate everything in the image at different depths and blur them separately.

Basically you don't have perfect depth information for an image, so it's not possible to do a perfect blur. On top of that getting cleanly masked edges is hard.
>>
>>3087497
I never go larger than f4.5 on my 210mm heliar!
>>
>>3087499
yeah right, fuck those wide open bokewhores
>>
What this guy >>3087498 said. The rest are just circle jerkers.
>>
>>3087498
>>3087394

What he said. It's going to take a while to map it. Don't just do a uniform Gaussian wherever not in focus. It'll look wrong.
>>
>>3087394
no, pic is very, very related
>>
>>3087476

ISO 3200 film outside on a sunny day?
>>
>>3087782
ND
>>
>>3087788

What if he forgot it at home?
>>
>>3087790
sell the camera
>>
File: shittypostblur.jpg (243KB, 1447x964px) Image search: [Google]
shittypostblur.jpg
243KB, 1447x964px
>>3087394
you can but it will ake shit ton of work. Basically you'd have to mask extremely well the thing you want in focus/ Then you need to make a layer where you extend the backgdound so it covers the edges of in-focus object to the extend that you want to blur it. Rinse and repeat for foreground blur. Then there's issue of corectly maping the blur and simulating the aperture shape, etc.
If you just mask and blur it will look like utter shit - pic related
>>
>>3087790
faster shutter speed
>>
>>3090522
shutter has it's limits
>>
File: 1332569683141.gif (1MB, 300x188px) Image search: [Google]
1332569683141.gif
1MB, 300x188px
>>3090312
oh god that pic
>>
Its really hard to properly simulate bokeh, atleast from my experience in photoshop. You'll probably end up with a gaussian blur, which looks super unnatural.
>>
>>3090533
That's why I use Nuke and Zdefocus. Heck of an overkill but gives great results
Thread posts: 25
Thread images: 4


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