Ektachrome and 200T exposure questions

[Lunar07]

Some imges to show what us up. easy to modify if you want to use the fukter.



R

I checked the cameras that I have. They all seem to have the filter lever that you talk about and appears in the picture (filter lever that fits into the filter notch of the cartridge) . EXCEPT the Nizo 6080. There seems to be a hole and there seems to be a lever. But the lever is down below inside the hole. So as is now, the lever can not fit any notch. Can someone confirm if that is the way it is on Nizo 6080? Is it possible that lever comes up and engages the notch in the cartridge when one loads the cart into the camera?

[Alex]

I have shot the V200T under the following conditions without any real visual difference after the film was telecined.

Daylight conditions:
ASA 160 - No 85 filter in use (Which is incorrect) excellent result
ASA 200 - No 85 filter in use (Which is incorrect) excellent result
ASA 160 - With 85 filter in use - result apparently as above
ASA 200 - With 85 filter in use - result apparently as above
Tungsten light conditions:
ASA 160 - no 85 filter in use - result apparently as above
ASA 200 - no 85 filter in use - result apparently as above no real difference from the 160 setting.

The various incorrect settings did not cause any problems that was not easliy elimiated in the telecine.

According to the 16mm shooters around here the V200T film seem to get even better with some overexposure.
My results did certainly not contradict this.

R

Did you use that Nikon R-10 Camera for these tests?

[S8 Booster]

No I did not because I was way more familiar with the 1014 XLS at the time. just bought he R10 then. didn´t want "finger trouble" to interfere my testing.

R

[mattias]

So as is now, the lever can not fit any notch.

what if you turn the filter switch? if the filter is manually disabled the notching system doesn't have to be active.

/matt

[S8 Booster]

Also - which position was/is the filter switch when you checked position of the lever? Tungsten? :idea: The lever may "slave" the filter swich position so at this :idea: position it may be retracted while at this * (Daylight) position it may be visible.

r

[Wells]

For what it's worth, I'll add a data point or two...

My nizo S800 has a pin in the aforementioned area that seems to override the manual daylight / tungsten setting. Here's how I confirmed: I opened up the back door with no cart in, opened the shutter, and observed the following:

Indoor setting: the little orange filter is swung out of the way.

Outdoor setting: The little orange filter is in place.

Now I take a pen and depress the little pin where the filter notch supposedly lines up, and the filter swings out of the way. 8O

There it goes, thinking for me again...

Regarding the neg film exposure issue, what I remember from still stocks is that the companies producing the film will rate the ASA as high as they can so that the film will still produce an acceptable image, so that they can claim a higher ASA. Thus, even moderate underexposure will be enough to degrade an image. I once did a test with some neg. 120 film, trying to overexpose it. My first run went three stops over. I had to repeat the test, because the image did not degrade perceptably. At five stops over, I started to notice some blocking up of the highlight detail, but not much.
Since it was 120 film, grain wasn't an issue, and so I can't draw any conclusions there, and movie stocks are obviously different emulsions, so take that with a pound or so of salt...


Also in my still experience, an 85B filter roughly equals an 85 plus an 81 (slightly amber, -1/3 stop corr.)

Wells

[Lunar07]

................................
Also in my still experience, an 85B filter roughly equals an 85 plus an 81 (slightly amber, -1/3 stop corr.)
Wells

85B filter equals an 85 plus an 81A to be exact.

[Lunar07]

Also - which position was/is the filter switch when you checked position of the lever? Tungsten? :idea: The lever may "slave" the filter swich position so at this :idea: position it may be retracted while at this * (Daylight) position it may be visible.

r

Thanks! This is the case with the Nizo 6080. It is working. The lever goes up depending on the position on the knob.
The Zeiss Ikon MS8 is the same, and so is the Eumig 881.

[Lunar07]

Also - which position was/is the filter switch when you checked position of the lever? Tungsten? :idea: The lever may "slave" the filter swich position so at this :idea: position it may be retracted while at this * (Daylight) position it may be visible.

r

So to summarize here: the whole point of the filter notch on the cart is to prevent one from using the internal 85 filter inadvertently with a daylight balanced film. Since a daylight balanced film does not have this notch (so the lever is always retracted. In which case the filter is disabled even one switches the filter knob on the camera. This was quite a helpful piece of information here. I never knew this before.
Did Kodak fix the issue with the 200T cart, and do the new carts have the notch?