Fuji positive color film in color reversible process.

georgegrosu · Apr 30, 2018

Fuji positive color in color reversible process.
I made some reversible samples with Fuji color positive film.
In addition to producing color slides on the positive color, I found that some effects can also be achieved on this film.
Effect of American night and contre-jour:
The night American effect is obtained when the color temperature of the son is over 5500 K.
The image becomes dark blue.
Because the exposure of the Fuji color positive requires a lot of light (1/15 and aperture 1.4), I thought to take a picture of the sun directly.
Look what went out.
You can find larger pictures and information here.
https://www.flickr.com/photos/21121448@N06/

George

AgX · May 1, 2018

I assume with Fuji Positive Color Film you refer to cine print film.

Something Fuji does not manufacture any more. Neither Agfa. All what is left is from Kodak.

georgegrosu · May 1, 2018

I personally do not think anyone is interested in buying the positive color film in a 610m box.
When you start making some tests or even more, you take about 30 - 50 - 100 m.
With a box of 610 m of film you get a life.
This experience involving long exposures (about 1/15 at diaphragm 1.4) is made for amateurs.
The tests that I made in 2018 were with the Fuji color print expired 10 years ago.
I know Fuji no longer produces color positive for a long time.
I also had some positive color Kodak, but it was a little.
Now you say that Agfa no longer produces CP 30.
Some time back here on the site I read that Agfa produce positive color CP 30 and a negative sound.
That's what life is like.
A couple of yards of positive color can also be found at cinematographic laboratories that are still working with color print films.
I do not think finding the positive color is the big problem.

George

AgX · May 1, 2018

Agfa cancelled their print film last year. And meanwhile all of their several other colour films.
And cine labs become more rare too ...

georgegrosu · May 2, 2018

Realizing the reversible color slides on the color positive film is very difficult.
First of all, it must be a very sunny day.
The sun is good for me to photograph from the balcony around 10am.
Tests we've done so far on the color-positive Fuji had to put a little yellow in the picture.
The theory is simple, put a filter of the desired color and concentration.
You get that color on the slide.
I did not have open yellow filters except a greenish yellow that would practically nullify the effect of filters 85.
I found some filters for color paper that has concentrations for yellow, purple and azure from 10 in 10 (ie 0.1).
The big trouble is that these filters spoil my image's clarity, although the chromatic image improves.
I will also present these tests for which I apologize for the quality.

George

georgegrosu · May 6, 2018

I made reversible color testss on the Fuji color positive film.
I found a combination of filters that give a better image.
I go to the version without fog that I think helps the image.

https://www.flickr.com/photos/21121448@N06/41217364564/in/dateposted-public/
https://www.flickr.com/photos/21121448@N06/41217356534/in/dateposted-public/

George

georgegrosu · May 11, 2018

Fuji color positive film processed in color reversible process - objective Rikenon 50 mm / 1.4.
https://www.flickr.com/photos/21121448@N06/28169930828/in/dateposted-public/

George

trendland · May 12, 2018

georgegrosu said:
Fuji positive color in color reversible process.
I made some reversible samples with Fuji color positive film.
In addition to producing color slides on the positive color, I found that some effects can also be achieved on this film.
Effect of American night and contre-jour:
The night American effect is obtained when the color temperature of the son is over 5500 K.
The image becomes dark blue.
Because the exposure of the Fuji color positive requires a lot of light (1/15 and aperture 1.4), I thought to take a picture of the sun directly.
Look what went out.
You can find larger pictures and information here.
https://www.flickr.com/photos/21121448@N06/

George

Do you mean "day for night" like the effect with 81EF George ?
with regards

georgegrosu · May 12, 2018

The efect of American night I first saw it in movies ~ 1965 and it seemed something special to me.
At that time I did not start with photography.
The effect consists in shooting day scenes that create the impression of night's / twilight.
https://en.wikipedia.org/wiki/Day_for_night_(disambiguation)
http://jpgmag.com/photos/3429984
https://www.flickr.com/photos/berkus/3422270718
https://www.flickr.com/photos/21121448@N06/26939169477/in/dateposted-public/

George

georgegrosu · May 13, 2018

Tests on Fuji color film in color reversible process.
Porst 2.8 135 mm lens.
Exposure - 1 second with 2.8 + 2 filters KR 12 + 85A + 30 yellow.
https://www.flickr.com/photos/21121448@N06/42083393471/in/dateposted-public/

George

georgegrosu · May 14, 2018

I made a color reversible color test on Fuji color positive.
Without a good sun I can not take the test.
Canon EOS 7 camera, 135 mm Porst lens with f 2.8.
Exposure: 1 sec with f 2.8 + 2 filters KR 12 + 85A + 30 yellow.
Obs. I did not use degraded filters.
PS
The 2 KR 12 + 85A filters are 49 mm threaded.
Objective have a 55 mm thread.
I do not have an adapter 55 to 49.
The 30 yellow filter is square 7.5 x 7.5 cm.
All four filters hold them by hand.
https://www.flickr.com/photos/21121448@N06/28238189888/in/dateposted-public/

George

georgegrosu · May 15, 2018

I'm sorry that the color scale was the one with the color scalevariable color.
The fact that the 49 mm filters are not fixed on the lens and the yellow filter, the chances of decentered or moving the device are great.
Other images in reversible color process on Fuji color positive film.
https://www.flickr.com/photos/21121448@N06/41403455924/in/dateposted-public/
https://www.flickr.com/photos/21121448@N06/42123637471/in/dateposted-public/
https://www.flickr.com/photos/21121448@N06/42077587812/in/dateposted-public/

George

georgegrosu · May 15, 2018

I did not make an important remark.
All the images made on the Fuji color positive film and developed in a color reversible process were scanned and corrected to be as close as possible to the film.
In sample 442-015 I photographed the sun directly.
That purple - indigo color is on the film.
That luminous point on the left of the bird in flight is given by the Rikenon 50mm f 1.4.
I mention that the sun in this photo was weaker.
In sample 437 II, the sun was strong and the lens was Canon 50 mm with f 1.4 /.
Two colored points (red and blue) appear on the film.
These two colored points are all given by the objective.
So far I have not taken pictures of such a regime.
From curiosity.
Someone else took a picture the sun directly?
https://www.flickr.com/photos/21121448@N06/42077587812/in/dateposted-public/
https://www.flickr.com/photos/21121448@N06/41217356534/in/dateposted-public/

George

Fuji positive color film in color reversible process.

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