IR Problem Costs Thousands

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Certain fabric dyes make this happen. Having done several more tests I can bring any black that has turned brown back to black with a change in gamma and matrix settings. You can see the change occur on your onboard lcd and external monitor.

The picture profile adjustments are enormous in the EX cameras.

In Barry Greens EX1 and 300 IR shootoff he said he used the same settings for both cameras. He doesn't say what specific settings. Whats also left out of that description is the fact that settings from different cameras and companies are not all alike and will not act alike. I know that the pp setting adjustments of the EX1 could make blacks black because I have done it.

You don't need a filter if you're willing to make changes in your picture profiles. The Red digital cinema camera for instance has to have a filter because it shoots RAW and cannot be tuned in like the EX.

I suggest anyone concerned find the combination of settings in your picture profiles especially your gamma and matrix so you can tune it in when needed. If the colors aren't what you like with these adjustments you can easily add in post
 
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Hi mico,
Thanks for your picture profile adjustments, but frankly this is not going to help. I want my picture bright reds, fully saturated beautiful colors, and I don't want to tweak anything - i loved the color warmth that we chose for our shots, and my client is not looking for a cinema look, obviously if you tone down certain colors of course the "brown" goes away, sure lol, and then everything else looks dark and not good -- and adjustments easily in post? Um absolutely no way, try 8-point color correciton, animated masks, hence the $2.5k to fix it :)
 
No problems asafb,

Understand completely.

The post was for people who understand what the matrix and gamma settings do. lol
 
thats about as bad as it gets. Was this ever a problem with SD carmeras or is it a new problem we are seeing with HD cameras?
 
Just finished shooting behind the Scenes on a MV that was shot on RED.

The band were being followed with a bunch of 'shadow people' in full black unitards.

There was that brown again. In full sunlight i saw it, natural light only, and then i saw it under the normal tungsten lights too.. i stopped caring.. noone else is going too, its an EPK video.

The RED camera they were shooting did not have a filter in it. And they were only monitoring with the red LCD.. i'll be interested to see what the final result comes out like. Im going to go see the Director sometime soon and check up on the Cut.
 
Well Joe what can I tell you man, camera manufacturers don't care about our problems until somebody actually does something, just think about it if we had 1,000 people complaining about IR problems with EX series and some guy wanted to do a CAL against Sony don't you think it would raise some eyebrows?
 
asafb said:
Well Joe what can I tell you man, camera manufacturers don't care about our problems until somebody actually does something, just think about it if we had 1,000 people complaining about IR problems with EX series and some guy wanted to do a CAL against Sony don't you think it would raise some eyebrows?
Click to expand...

A class-action lawsuit would also dampen Sony's efforts to innovate. New products could hit the market at a slower pace, with new products withheld for adequate testing. After being hit by such a lawsuit, a company would want to avoid it happening again. That means not releasing anything that might expose the company to any further liabilities.

Product liability lawsuits involving aircraft more than 20 years old nearly killed off the light aircraft industry. It took an act of Congress, limiting product liability to a 10-year span, before Piper and Cessna got back into the business.

Best bet: test before you buy. And if you don't like what you see, don't buy it.
 
I not long recieved my 486 filter and thought I'd share my experiences to add to the collection. I done alot of testing to see if it really cured the reddish brown problem under all sorts of different lighting, different fabrics etc and I can report that i was able to get ALL my blacks looking black however there are side effects. I actually filmed a very short clip to demonstrate how effective the filter was along with my thoughts on the side effects etc, you can check it out at http://www.vimeo.com/3900978

I plan to film a proper testing at some point, this clip really is only to demonstrate what the filter does for those wondering if they should spend the money or not. Hope it helps
 
Hallo Daniel,you did a good job with that test ir486.Ma thought to buy me such a filter, the price is good and attenuates the contamination ir
 
Personally I don't see any reason not to use the filter, in all cases the images looked the same or more natural. In that shots of the outdoor follage, I can see more lusious greens and less brownly green follage. If anything it has shown me how the image is effected in so many more way from IR contamination. Even that paper with typed writing on it went from light pink to white (on my screen anyway).
 
Hey Guy, yeh it really depends on how fussy the user is I guess. Without a doubt the filter DOES have an overall colour implication, however that doesn't necessarily mean its a bad thing and even if its something you don't want then its such a minor shift it would only take a few clicks of an eye dropper tool in FCP etc to solve it.

Given the problem with the EX1 turning some blacks into reddish browns i can't see any reason not to use the filter.
 
Since I'm a online ordering nerd..... Could someone please post a link to purchase this filter for an EX3. A slim one to fit under the stock lens hood.

Thanks in advance!

frisco
 
I'm looking to buy one of these filters ASAP if anyone has one. If you know a dealer that has them in stock please contact me with info.

Thanks!

frisco
 
Anyone using the Tiffen Hot Mirror filter?

My understanding is that it is made differently and will not give the green cast on W/A lenses plus it does not need to be the outside filter to work. Only downside is that it only comes in square and rectangular from Tiffen.
 
Quick Question. I dont own an EX, but on the odd occasion shoot with one, tight spaces etc. So need some info, on that IR lens.

Watching the clip, the IR lens introduces a green cast over the image, if this is graded in post to normalise the green levels, I would need to introduce some magenta. Will this turn the black objects that show with ir issue (magenta cast), back to square one i.e. non black? Id assume so.

And, when using filters in lowlight they can introduce noise, is this the case with the IR filter?

Cheers.
 
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