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BUYING IRND FILTERS


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Hello friends!

I was offered an awesome deal on a set of IRND filters, 180 bucks for a set of six 4.5.65's. However I noticed they weren't neutral, they tinted green on the image.

Are these filters salvageable? Is there any hope of correcting the green tint with a LUT?

The price is attractive, but I want to make sure I'm not buying junk.

Thank you!

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Tiffen IRND filters had this effect.  And it's not so easy to color correct them.  Each density of filter has a different amount of greenish tint, and it seems that this green does not effect every color the same way.  Maybe Tiffen has better IRND technology now, but I don't know.

For a recent tiny project that we shot with a Sony A7RIII camera, I purchased IRND filters from https://breakthrough.photography/

And they were quite good, without a color cast.  Though, in general, I do prefer to use a camera that has built in IRND filters matched to the camera sensor, such as the Alexa mini.

I would conclude that the expense of color correcting these filters will be more expensive than the "bargain" on the used filters...

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