Thread: Best IR Cut Filter for Ursa Mini 4.6k

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  1. #11  
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    Quote Originally Posted by Cineview View Post
    HELP!

    Ive ben out all shooting a commercial, and when i got home, i see all navy colors have become wine red. Unfortunately i didnt have any ir cut filter cause i couldnt find one in time, never thought it would look this bad.
    Is there a way to fix it in Resolve?

    Thanks

    What you're describing is pretty much classic IR pollution and there really isn't any way to "fix it" in post.
    You can work with it but if it's that pervasive you can't eliminate it, in my experience - which is admittedly a one time experience when the BM cameras first arrived and we hadn't received our filters yet.

    That was a while ago and perhaps an IR guru here has more promising advice.
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  2. #12  
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    Post a DNG. How bad is it? There's definitely no one click fix.
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  3. #13  
    Senior Member shijan's Avatar
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  4. #14  
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    May be a long shot as the lut isn't made for the ursa mini 4.6k but someone recently mentioned using an old lut from captainhook that helped with incorrect colours. But they achieved this on older cameras. http://www.bmcuser.com/showthread.ph...ew-LUT-from-me

    But yeah really best to have already had an IR cut.

    Good luck.
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  5. #15  
    Senior Member DPStewart's Avatar
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    Quote Originally Posted by Cineview View Post
    HELP!

    Ive ben out all shooting a commercial, and when i got home, i see all navy colors have become wine red. Unfortunately i didnt have any ir cut filter cause i couldnt find one in time, never thought it would look this bad.
    Is there a way to fix it in Resolve?

    Thanks
    I've had some luck using the qualifier in Resolve.
    Once you've selected your offending color region, the controls are pretty extensive and narrowing down the selected color range is pretty easy.
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  6. #16  
    Senior Member Ruben de Boer's Avatar
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    Did anyone try the Solas IRND's already? I'm curious if they work OK with the UM4.6K
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  7. #17  
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    Quote Originally Posted by rick.lang View Post
    You haven't mentioned if you want screw-on filters or matte box filters. Remember your needs today may change tomorrow. So you need to think about the maximum size you expect to use in the future. You also haven't mentioned what lenses you plan to use especially the widest lens you'll use. There's a lot of information already in this thread but much more in various other threads in this forum. You haven't mentioned your budget.

    Take a look at the latest test I posted here last week. I use four different kinds of filters that either cut or attenuate infrared light. Three of them are in my latest videos. I recently purchased a full set of NiSi Nano IRND 4x5.65" filters that are effective at reducing infrared as well as visible light and they are the most economical of the best performing IRND rectangular filters. They are also in screw-on sizes I believe. My SLR Magic Image Enhancer Pro also attenuate infrared, and my 86mm B+W 486 MRC IR Cut screw on will cut infrared beginning around 680 nm which will be effective on a wide range of lenses.

    But for very wide lenses, these IR Cut 680 nm filters may cut further into deep red and take some of the colour out of your skin tones. I'll be doing more tests on that hopefully next week. For very wide lenses, the rectangular Schneider True-Cut 715 nm filter might be a better choice.

    By the way, all of the recommendations mentioned are good products.
    Hi Rick,
    Has SLR Magic releasd a Image Enhancer Pro mark II version?

    I could'nt find anywere that stocks it, certainly not SLR website.
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