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.
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
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.
000002b2
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
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.
MXH00742t2
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.
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
56009,6499421296t
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
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.
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
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
Mayo_2026_0024b
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
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.
IMG_4447t