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    FS700R 4K and lens distortion ideas?
    #1
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    So it's my understanding that using an external recorder for 4K bypasses the in-camera lens correction so...
    if I wanted to do an interview with 2 FS700R cameras but they both had different lenses, how do you deal with the various lens distortion issues?

    Such as if 1 camera had a Sony 50mm f/1.8 and the other camera had a Sony 35mm f/1.8.

    If both cameras had the same lens than at least the distortion would match but with different lenses....


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    #2
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    I'm not sure sure about those particular lenses, but generally primes in the normal range (ie 35-50mm) tend to have very low distortion. Most people are using EF lenses which don't have distortion correction anyway.

    If you do have any sort of noticeable distortion the you can just fix it in post. You'll have plenty more resolution to play with.
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    #3
    Senior Member seanmc's Avatar
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    Agreed. I wouldn't worry about those two lenses.

    Extreme wide angle zooms present far more distortion that require correction. The original 18-105 suffered from bad pin cushion distortion which is quite unattractive, hence the in body (digital) correction...which you can do in post as well.


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    #4
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    Thank you guys.
    As far as fixing it in post, how do you do it? Are there settings for certain lenses?
    I also have the 18-105 but wasn't planning on using it on the FS700R when shooting 4K because of the known distortion.
    I was thinking of using the Sony 18-200PZ for events requiring zooms and the 35mm and 50mm for interviews that need shallow DOF.


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    #5
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    If you're using Premiere you just apply the Lens Distortion effect (in the "Distort" folder) and then dial it in + or - until you get straight edges.

    Keep in mind that even with lenses that do show distortion, you're only ever going to notice it if you're shooting something like architecture, or you've got a horizon or other straight line close to the edge of your frame.
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    #6
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    Thank you very much


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    #7
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    Overshot a lot with the 35/1.8 and 50/1.8 and haven't ever seen any distortion... (haven't pixel peeped though).
    The 18-105 has quite severe distortion but could still be used, Depending on what you are shooting, but I avoid it when using raw...
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