Tiffen T1 Works great!

[Jay Gladwell]

The new Tiffen T1 IR filter arrived today (Monday). I did a few tests with various black materials I could find around the house. To make a long story short, it worked as promised. The blacks came out rich and black, no reddish/brown tint and no green vignette.

There is a half stop loss in light, but that borders on negligible. There is some very minor tweaking in post to boost the red's saturation to their previous levels before adding the T1.

IMHO, this filter helps make a great camera even better. I'm a happy camper!

:thumbsup:

 

[Chadfish]

Does it make a green cast over the whole image? Could one theoretically use this filter and not have to do CC in post?

 

[Jay Gladwell]

Does it make a green cast over the whole image?

Not after you've done a white balance.

You should be doing a white balance in any case!

Could one theoretically use this filter and not have to do CC in post?

Yes.

However, if you're referring to CCing in an attempt to correct the "far red" effect, it's nearly impossible to do, without throwing everything else out of kilter.

Spend the $69 and get the filter. You will not regret it.

 

[GuyB]

I'm wondering if there is an adjustment to a picture profile which would make this change for you (adding a bit of standard red saturation back in if you want it).

We'll probably also need to work out a picture profile to compensate for the green tint when using preset colour temperatures.

 

[Jay Gladwell]

I'm wondering if there is an adjustment to a picture profile which would make this change for you (adding a bit of standard red saturation back in if you want it).

Some have tried, but to no avail. It's not just red but "far red" light in the spectrum.

We'll probably also need to work out a picture profile to compensate for the green tint when using preset colour temperatures.

Since it's not a matter of color adjustment, you'll have to do a simple white balance.

Go to Stunning Good Looks and read some of Art Adams' articles on the "far red" issue:

 

[GuyB]

Some have tried, but to no avail. It's not just red but "far red" light in the spectrum.

No, I mean with the filter on, if you dial in a white balance you will have a green tint. Matching cameras is best done with dialing in a manual WB, I've seen a set of EX1s & 3's try to match colours with manual WB reading and it just didn't work! They all picked slightly different values... Dialing in a single WB value was the way to get the best matching look.

Since it's not a matter of color adjustment, you'll have to do a simple white balance.

Go to Stunning Good Looks and read some of Art Adams' articles on the "far red" issue:

Read above please and you will understand why this is not relevant to what I was saying.

 

[Jay Gladwell]

No, I mean with the filter on, if you dial in a white balance you will have a green tint.

... Dialing in a single WB value was the way to get the best matching look.

My apologies, Guy, I don't understand what you're saying. It appears to me that you're contradicting yourself.

How is doing a white balance through the filter going to produce a green tint?

And who said anything about matching cameras?