DV Info Net

DV Info Net (https://www.dvinfo.net/forum/)
-   Sony XDCAM EX Pro Handhelds (https://www.dvinfo.net/forum/sony-xdcam-ex-pro-handhelds/)
-   -   Tiffen T1 filter on all the time? (https://www.dvinfo.net/forum/sony-xdcam-ex-pro-handhelds/471523-tiffen-t1-filter-all-time.html)

Steve Browne January 23rd, 2010 01:36 AM

Tiffen T1 filter on all the time?
 
Do most people keep the Tiffen T1 filter on all the time?

I have an EX3. I live in Australia which means hot golden sunny afternoons.
I have the Schneider 486 + the T1
At present I try and shoot everything with no filter (only UV filter) and would only use the 486 if I thought I was going to have a problem

I find the yellow tinge (after whitebalancing) of the T1 quite unattractive against having no filter, especially with Skin tones.
Using no filter gives a subtle reddish depth to faces.

Whether of course this noticeable when the final product is for Web or DVD is another question.

Personally I need to get everything as right as possible in the camera.
I colour correct the footage in Final Cut - and this is basically adjusting the whitebalance, improving skintones and brightness.

The T1 changes the colour quite a bit in the camera. I don't really have the skills to undo that in Final Cut.
Does anybody have good Picture Profile settings to fix up the picture in the camera?
Of course I would like to have true blacks - but not at the expense of loosing the lovely clear picture that the camera has by itself

Bruce Rawlings January 23rd, 2010 05:57 AM

Do you not white balance with the filter in place to get around the problem?

Steve Browne January 23rd, 2010 07:08 AM

Yes but it still looks sort of murky to what it was before without the filter

Olof Ekbergh January 23rd, 2010 08:44 AM

I use a UV filter on my EX3 and EX1R all the time except when using the mattebox with filters.

I have never had a far red problem. I know I am lucky, I am not saying the problem does not exist. I have shot quite a few black suits, maybe it is the fact that I almost always use daylight lights HMI, fluorescent or lately LCD's. I think tungsten lights seem to aggravate the situation.

What I do if I notice a problem in the shot, is white balance with some of the questionable black fabric in the frame with the white card (about 50/50). Having a good evaluation monitor helps spot the problem before it bites you hard.

Piotr Wozniacki January 23rd, 2010 08:55 AM

Quote:

Originally Posted by Olof Ekbergh (Post 1476133)
I think tungsten lights seem to aggravate the situation.

They absolutely do, Olof. However, even with natural light, when you use heavy ND filtering the far red problem is obvious.

Perhaps you just happen to use some special PP, which crunches blacks a lot - this would turn all possible shades of black into deep black?

Re: the OP's question - after proper WB-alancing, I do not have any color shift with my T1.

Bruce Rawlings January 23rd, 2010 10:53 AM

I have shot interviews with staff dressed in green corporate colours and now they have maroon/brown jackets! Tiffin filter now in place at all times and no problems. You do not know what is around the corner to stuff you. By the way the Tiffin filter thread will not hold filter ring for fixing on matte box so now have to get rails, all because Sony fitted the wrong filters.

Simon Wyndham January 23rd, 2010 01:50 PM

I have found that the T1 seems to muddy things somewhat. I am going to do more experimentation though. I will say that it is an absolutely essential filter to have in the toolkit first gen EX1's and EX3's, but I doubt I will keep mine on all the time.

Ed Kukla January 24th, 2010 08:01 AM

I set out a black fabric tripod case & a black fleece on a black leather sofa. Lit with plenty of indirect daylight. The leather sofa was BLACK, the tripod case was somewhat red and the fleece was very reddish brown. No tungsten, no direct sunlight. Very blue indirect daylight.
I shot a project outdoors on a cloudy day. Many, many people wearing various black clothing. Virtually all the black synthetics turned reddish brown. Looked like a UPS convention. This was before I received the T-1 filter.
It's definitely not just tungsten.

Since this problem came up with EX, I've been watching for this on TV. I've been seeing it a lot now that I'm looking for it. It isn't just EX cameras. I'm sure a lot of what I have seen was not shot with EX. It's less of a problem but it's still there.

Marcus Durham January 24th, 2010 06:45 PM

Quote:

Originally Posted by Ed Kukla (Post 1476493)
It's definitely not just tungsten.

Agreed. I've done a number of shoots outdoors over the past 7 months with an EX1 and the problem is evident in all outdoor lighting conditions.

The most amusing was a shot of a brass band playing. You could see exactly which members had cheaper jackets/trousers that had a synthetic blend, and which members had the more expensive natural fibres!

One member had a jacket that was OK except for the fact his lapels were synthetic!

My T1 is on order but I'll only be using it where it is required.

Simon Wyndham January 24th, 2010 06:54 PM

I can just see the situation now,

"Sorry old chap, but your taste in clothing is far too cheap to appear in front of *my* camera."

Marcus Durham January 24th, 2010 07:26 PM

Quote:

Originally Posted by Simon Wyndham (Post 1476722)
I can just see the situation now,

"Sorry old chap, but your taste in clothing is far too cheap to appear in front of *my* camera."

It was just amazing how 10 or so people in what looked like identical attire to the naked eye were all in fact not wearing not quite identical attire at all. Luckily for me it didn't matter on that occasion.

But imagine you were covering a concert orchestra only for the view to be peppered by people wearing brown/purple instead of black!

Even if some people reading this think they don't need a T1, they could save an awful lot of explaining to the client if they stash one in the camera bag just in case.

John Hamlik January 24th, 2010 10:53 PM

1 Attachment(s)
You mean something like this.

Marcus Durham January 25th, 2010 05:40 AM

A great illustration of the problem!

Bob Grant January 25th, 2010 06:37 AM

Quote:

Originally Posted by Simon Wyndham (Post 1476242)
I have found that the T1 seems to muddy things somewhat. I am going to do more experimentation though. I will say that it is an absolutely essential filter to have in the toolkit first gen EX1's and EX3's, but I doubt I will keep mine on all the time.

I have the same feeling, just looking at a red LED through it I can see how much it is attenuating the visible red part of the spectrum. By very crude measurements using the camera I'd say the loss is over 1 stop. By comparison the 486 shows no loss. The 486 stays on the camera.
Only reason I bought the T1 was to try it out and also to see if I could fit it behind my WA adapter.

Simon Wyndham January 25th, 2010 06:52 AM

I could be wrong, but I felt that on the last shoot I did that the T1 made peoples faces a bit pasty. Again, it could have just been the light and I need to use it a bit more to be sure.


All times are GMT -6. The time now is 10:17 AM.

DV Info Net -- Real Names, Real People, Real Info!
1998-2024 The Digital Video Information Network