View allAll Photos Tagged trichromes

Trichrome is the process of using black and white film, one image taken with a red filter, green filter and blue filter. Then some processing needed.

Digitally composed from 4 blac&white negative film scans in GIMP. Here is MY PROBLEM: could someone refer to me what are the optimal color assignment and blending modes in GIMP? I cannot really say at this point if I used "screen" or "additive light", for each layer and overall, and any way this made the upper right corner of the picture quite much blown out of proportion despite the negatives (and their scans) holding relatively good detail in that area. I was trying to play with curves in each layer, but while the situation improved, it did not reach my liking. I am very much GIMP naive, but I have also not used Photoshop extensively at any point - therefore, I am layer workflow naive. I guess that this is the beginning of a learning journey for me.

Minolta Maxxum 7

Sigma 35mm f1.4 DG HSM Art

4 negatives of ADOX HR-50

1st: 2x NISI natural night & Landscape C-PL filters (the only blue I had) - after this one, the tripod head shifted, so it was most difficult to align, which did not succeed completely

2nd: B+W Yellow & NISI PRO-C-PL filters

3rd: 580nm (light red) IR pass filter

4th: 720nm IR pass filter

Developed in Kodak X-TOL in Tromsøfotoklubb, camera scanned with JJC film holder and SAD lamp.

Trichromatic photography is the process of taking three identical black and white photos (film), each taken with a different color filter (red, green, and blue), and then combining the three photos to create a color image. This is how it was done before color film arrived.

Lessachtal, Lungau

 

Pentax 645, smc Pentax-A 645 1:2.8 75mm, Göttinger Farbfilter no. 681, 682 and 683, f/9.5, 1/125 (red filter), 1/60 (green and blue filters)

Ilford Delta 400 film/Jobo Alpha developer

 

Another film trichrome, together with its constituent colour separated frames. These are the contrast- and brightness-adjusted positives, colourized in the colour of the respective filter via the Curves command in Photoshop. When combined in lighten layer mode, they produce the colour image on the left.

An alternative way of combining the frames is just to copy the black-and-white positives into the respective colour channels. This is how I do it. The Adobe RGB or image P3 colour profiles produce the best colour; with a narrow profile such as sRGB colours are too muted while with a very wide one such as ProPhoto RGB they are much too saturated.

Photo taken with this contraption.

 

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Lessachtal, Lungau

 

Pentax 645, smc Pentax-A 645 1:2.8 75mm, Göttinger Farbfilter no. 681, 682 and 683, f/9.5, 1/125 (red filter), 1/60 (green and blue filters)

Ilford Delta 400 film/Jobo Alpha developer

Photo taken on B&W film with this contraption.

 

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Shot after sunset on expired Ilford XP2 film.

 

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Photo taken on B&W film with this contraption.

 

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This was to be the green channel of a trichrome, but the blue channel was completely useless, so it couldn't be done. Shot on expired film, colourised on the computer.

 

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Photo taken with this contraption.

 

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Pentax Z-1p, SMC Pentax K 1:2/35, Göttinger Farbfilter no. 681, 682 and 683, f/6.7, 1/10 (red filter = +2½), 1/8 (green and blue filters = +3)

Ilford FP4 Plus film/Jobo Alpha developer

Photo taken on B&W film with this contraption.

 

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Infrared-green-blue trichrome in which the IR cnannel has been rendered red, creating a similar effect to that of the old Kodak colour IR film.

 

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Photo taken on B&W film with this contraption.

 

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Im Prebergebiet, Lungau

 

Pentax 645, smc Pentax-A 645 1:2.8 45mm, f/9.5, 1/60, Göttinger Farbfilter no. 681, 682 and 683

Kentmere Pan 400 film/Jobo Alpha developer

Trichrome image of Happisburgh lighthouse, Foma 100 b&w film.

3 exposures, red filtered (105sec), green & blue (45sec each).

fearnphoto 45A // RealitySoSubtle 0.4mm pinhole // Fomapan 100, +1 dev, Rodinal 1+50.

Retina IIIC Ilford SFX 200 HC110 Dil B

RSS 6x17 :: Ilford FP4

 

3 stop RGB filters + ND4

3 x 2min exposures

Photo taken on B&W film with this contraption.

 

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Infrared RGB Trichrome using Rollei IR 400 and hoya RGB filters to emulate discontinued Kodak Aerochrome,

Stand dev in Rodinal 1:100 for 70 mins.

 

Fujica gw690ii + 90/f3,5

Rollei IR 400 + hoya R72

Hoya RGB filters

 

Sorry if this clashes with your group rules**

  

Rear façade. Experimental trichrome from a single colour photograph.

 

map.what3words.com/tequila.bronzes.remark

40.413877, -3.691766

 

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Photo taken on B&W film with this contraption.

 

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RGB Trichrome

Nikon F75

AF Nikkor 80-200mm 4.5-5.6 D

Rollei Retro 400s

R72 filter - red channel

red filter - green channel

green filter - blue channel

 

Infra Red Trichrome with the Holga Pan of the local church

 

Holga Pan

Ilford SFX (x3)

720,G,B filters

6x6 pinhole trichrome of my favourite tree

 

The process:

3 x b&w negatives

Dev'ed & Scanned

Composited into Trichrome in software

Sent to phone

Printed on Polaroid Lab

Emulsion lifted

Emulsion placed on paper

Scanned

Uploaded to socials...

 

Why? ‍Just because :)

Pentax Z-1p, smc Pentax-A 645 1:3.5 35mm with Kipon shift adapter, Göttinger Farbfilter no. 681, 682 and 683, f/11,

TriR, 1/10; TriG, 1/8; TriB, 1/10 (red and blue filters = +2½), 1/8 (green filter = +3)

FP4 Plus film, Jobo Alpha developer

This is my self-designed filter frame for the trichrome gel filters no. 681, 682 and 683 from Göttinger Farbfilter (a highly specialized German company that seems to survive without any marketing at all but has interesting products). It is made from laser-cut black cardboard to fit my old Cokin filter holder and makes it easy and quick to change filters between subsequent shots. A filter wheel would be even better.

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Correct colour for the plant (which is called Little Ruby) but the background and leaves in shadow don't look right. More experimentation is in order.

 

Film stock: Kodak Vision 2383 Color Cine Print Film

ISO: 3-6

Format: 135

 

Camera: Pentax P30

Lens: SMC-PentaxA 50mm F1.4

Filter: Blue, Green, Red

 

Developer: Caffenol C-L (minus restrainer)

Time: 35 min @ 20 degC semi-stand

 

[First image to be explored - 13th April 2023 @#490 www.flickr.com/explore/2023/04/13]

RGBY

Nikon F75

AF Nikkor 80-200mm 4.5-5.6 D

Rollei Retro 400s

R72 filter - red channel

red filter - green channel

green filter - blue channel

night (no filter) - yellow channel

Instax Square Monochrome.

Nons Camera SL660 + Nons EF 50/1.8

Cokin filters

The light changed a lot during the exposures for this #pinhole #trichrome image!

 

No 💩 Sherlock.

 

No easy way of balancing your way out of this one. I made it, so you have to see it 😁

Pottery from Úbeda, Spain. In sepia, with Orton effect, this was taken as the blue channel for a trichrome.

 

Ilford XP2

 

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RGB Trichrome

Nikon F75

Nikkor AF 28-80mm 1:3.3-5.6 G

Rollei Retro 400s

R72 filter - red channel

red filter - green channel

green filter - blue channel

 

R — G — B trichrome

 

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I took this photograph, made three copies, applied red, green, and blue filters to each respectively. Then turned them into b&w and corrected levels automatically. After, I piled them one on top of another and reapplied the colour filters. This is the result, a trichrome from a single colour photograph.

 

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this is the wheel that lives at the coffee shop.

 

shot at night, four minutes of exposure total — red 1m, green 1m, blue 2m.

 

frederick coffee company, frederick, md.

 

acros@80, hc110b 4.5' ~20c

pentax mx

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