View allAll Photos Tagged selenium
The Silette L was the first Agfa camera with built-in exposure meter, it went into production in 1955 and went on sale in 1956. This exposure meter was uncoupled, thus had its own adjustment wheel, and – like all electronic exposure meters of its time – worked with a selenium cell.
After a bleach containing bromide and subsequent redevelopment, the silver particles have a coarser structure, which allows selenium toning without the usual fading to unattractive yellowish colour of Kallitypes.
A later iron toning, however, does not produce a clearly recognisable split tone as with silver gelatine prints, but a continuous greenish tone due to the addition of the two colours red and cyan.
A following lead toning changes this only slightly, at least cyan is reduced, which leads to a warmer impression.
Fomatone 131 two tray development:
1st Easy Lith FT Special 1+10 5 mins
2nd Polychrome 20+12+12+1000ml 1 min.
Short Selenium toning 1+10 30 secs, to shift the greenish shades to red.
At least once annually Mountain goats must find mineral licks to replenish their stock of minerals, in particular selenium. It helps there digestive process. Typically these goats come to this lick in the early summers. They look like they are in bad condition, but they are only shedding their winter guard hairs and wool. Soon they will be wearing their summer coats. They cannot survive the harsh winter conditions without their heavy winter coat. Its difficult to distinguish between the billy's and nannies (at least for me) with their winter coat so you need to study their horns or watch them urinate. Females tend to squat for this. These are actually horns as both sexes grown them and they are not shed. These goats don't have much for defense from predators except their deadly horns and amazing ability to climb and traverse steep rock faces. They have very interesting hooves that splay out to provide grip along with rough pads.
Ilford multigrade fb classic 1k
PQ universal
stop bath water
Alkaline Fixer
Selenium-sepia duotone with dilute bleach bath
The eye should not be led to where there is nothing to see / El ojo no deberÃa ser dirigido hacian donde no hay nada que ver
Robert Henri (1865 - 1929)
A car park at Leeds University, Yorkshire.
CJCT Architects
Here is another photo that I've taken of this building: flic.kr/p/2iQVsuG
Salt Print toned in Selenium Toner 1:50. Rolleicord Vb with Ilford HP5+ developed in PMK Pyro. Digital negative made with Pictorico Premium OHP Transparency Film. Printed on Hahnemuhle Platinum Rag under Edwards Engineering 18x20 UV lightbox for 12 minutes. Borders masked with Scotch removable Magic Tape.
Brovira 122a chamois velvet,
SE5 Lith 4 mins followed by Lith G 5 mins
MT1 Selenium toner 1+20 2 mins
Rolleiflex sl 66, Hp5, D76 1+1
Ilford multigrade fb classic 1k 24x30cm/ 20x20cm
PQ universal
stop bath water
Alkaline Fixer
Selenium toner 1+9 2min.
Sepia toner.
I would like to prepare a photo exhibition.
If you would like to help me with this project, you can write to me.
The silver print is looking for a new home. ;-)
Attempt with extremely strong selenium toner.
Variotone Premium in SE4 Neutral.
Pre-toning with MT3 Vario toner. Bleach 1+75 1 minute, toner setting 50+10+950ml 30 seconds, no colour visible.
MT1 selenium toner 1+3 30 seconds.
Geranium ‘Espresso’ in selenium toned monochrome.
‘Espresso’ is a cultivar of Geranium maculatum native to North America.
The fire red flowers of Indian Paintbrush (Castilleja sp.) contrast with the blue hues of Lupin flowers (Lupinus polyphyllus) that are defocused in the background.
Indian Paintbrush plants are partially parasitic (hemiparasitic) on the roots of other plants such as grasses. They also have the ability to concentrate high levels of selenium in their tissues from the soil and can be toxic if the roots or shoots are consumed.
For more information see: en.wikipedia.org/wiki/Castilleja
Wild flowers, Northern British Colombia, Canada
Minimal post processing was done and consisted mostly of very minor adjustments in PS Camera Raw.
Camera: Olympus EM1
Lens: Meyer Optik Oreston 50 mm f1.8 (early twin zebra; M42)
P6220415
Press "L" to view large
Rollei T, Kodak Tri-x in Pyro 48,
Fomatone 131 (old batch) ,
Easy Lith FT Special 6 mins,
Catechol new 20+20+10+800ml 4 mins.
Rght: printed somewhat brighter (after toning all desnsities increase).
1st MT1 Selenium toner 1+8 1,5 mins.
2nd MT9 Gold toner 20+20+250ml 4 mins.
In order to be able to use "normal" selenium toners (which contain Ammonium salts and/or Thiosulfate) for Lobotypes and Kallitypes without the usual fading and yellowing of tones, the print should be bleached (potassium ferricyanide and bromide) and redeveloped in any developer for gelatine silver prints.
The toning target was a split tone with subtle reddish shadows and bluish highlights.
Lobotype on COT-320. Due to the bleach and redevelopment 25% overexposed.
Left bleached 1+40 2 mins and redeveloped in SE2 Warm 1+10 1 min.
Middle MT1 Selenium 1+10 2 mins with the typical, initially invisible result of not completely toned highlights and midtones.
Right MT7 Iron Blue Toner (4+4+12+4+500ml) 50 secs followed by Lead acetate toner 2,5% 50 secs.
A little inconvenient, but I think the diversions is worth it.
HP5 in Finol,
Athenatype onto Cot-320,
Silica pre-coated (salt shaker and foam roll),
Sodium acetate developer 1+19,
on the right MT16 Selenium/Sulfur toner 1+50 1 min.
Rolleiflex sl 66, Hp5, D76 1+1
Ilford multigrade fb classic 1k 24x30cm/ 20x20cm
PQ universal
stop bath water
Alkaline Fixer
Selenium toner 1+9 2min.
I would like to prepare a photo exhibition.
If you would like to help me with this project, you can write to me.
The silver print is looking for a new home. ;-)
Ilford multigrade fb classic 1k
PQ universal
stop bath water
Alkaline Fixer
Selenium-sepia duotone with dilute bleach bath
Polychrome prints react to selenium toner with an enormous increase in density and contrast and a clear increase in grain.
Fomatone 131
Easy Lith FT Special 1+10 6 minutes followed by Siena 10ml + Carbonate 10ml + NH4Cl 15ml + water 800ml 2 minutes.
On the right MT1 Selenium toner 1+10 50 seconds.
Rolleiflex sl 66, Hp5, D76 1+1
Ilford multigrade fb classic 1k 24x30cm/ 20x20cm
PQ universal
stop bath water
Alkaline Fixer
Selenium toner 1+9 2min
Sepia toner.
I would like to prepare a photo exhibition.
If you would like to help me with this project, you can write to me.
The silver print is looking for a new home. ;-)
… no, not really. It is an lovely sculpture just outside König Galerie in Berlin.
I haven't ben able to find out who made it, though.
If you know, please let me know in a comment below :-)
Canon EOS 30
EF 50mm f/1.8
Orange filter
Fomapan 100
D-76 1+1
Fomabrom variant 112
Ilford Multigrade dev.
Adox Selenium toner
Holga 120N, Efke IR820, eco film developer,
Kallitype.
Directly used MT17 Selenium toner decreases the saturation. After a pre-toning with Lead, the opposite happens.
Rolleiflex T, TX400, Yellow filter, Pyro48,
Ilford MGWT, Eco4812 1+14 3 mins,
left MT3 Vario: bleach 1+75 1 min,
toner setting 50+90+850ml 30 secs,
right followed by Mt1 Selenium toner 1+20 1 min.
Erlkönig, Lith paper made by Fotokemika.
Lith 7:45 mins followed by Lith G 3 mins.
Left untoned, right MT1 Selenium toner 1+10 2 mins.
Developer settings:
SE5 Lith A+B+D+water 40+40+50+900ml
Lith G: 800ml water + 10 Lith G + 20ml Ammonium chloride 20% + 2ml Lith D + 10ml Lith B
For comparison, again the polysulphide toner with a totally different hue after Polychrome development.
Left Fotokemika Varycon in SE15 Polychrome, MT1 Selenium toner 1+30 2 mins.
Right additional MT4 Siena toner 1+35 20 secs, with approved toning progression during the final wash.
Rolleiflex sl 66,delta 400, D76 1+1
Ilford multigrade fb classic 5k
Ilford Multigrade develop
24x30cm/ 20x20
stop bath water
Alkaline Fixer
Split toning selenium sepia
Rolleiflex sl 66, hp5,d76 1+1
Ilford multigrade fb classic 5k
Ilford Multigrade develop
24x30cm/ 20x20
stop bath water
Alkaline Fixer
selenium sepia split toning
Rolleiflex 3.5F TMY2 (320) Finol
scan from print onto Variotone Premium 20x25
ECO4812 1+14
toning:
MT1 selenium 1+10 30s
bleached (dil. 1+80) 30s
redev. in MT3A 30s
toned in gold MT10 3min
Darkroom print on ilfor cooltone, dodge and burn, bleach, sepia, selenium.
Tengor Box Camera.
HP5 in D76
Ilford multigrade fb classic 1k
PQ universal
stop bath water
Alkaline Fixer
Selenium-sepia duotone with dilute bleach bath
The same toner combination as the previous image, but this time with Ilford Classic. This paper reacts considerably slower to both toners, so colour saturation is lower when bleaching is relatively short.
Ilford Classic in SE2 Warm
Left MT3 Variotoner: Bleach 1+75 1.5 minutes, toner setting D.
No significant colour change can be seen yet.
Right with subsequent selenium toning, MT1 1+20 2.5 minutes.
FP4 in Tanol N+1,
Ilford Art 300 in SE2 Warm,
two toners, MT3 Vario: bleach 1+100 1:15 mins, toner setting C, followed by MT1 Selenium 1+10 3 mins
Lith print 30x30cm on Fotokemika Special Lith Paper.
Left untoned, right MT1 selenium toner 1+20 1 minute and MT10 gold toner 5 minutes.
Zero pinhole, Trix Tanol Speed,
Kallitype on HPR,
above Ammonium citrate developer,
middle MT17 Selenium 1+200 2 mins,
below 2nd toner MT7 Iron 2+2+5+2+600ml 3 mins followed by Lead acetate 1,5% 20 secs.
Darkroom contact print on Ilford iv multi glossy, no filter, dodge and burn and selenium.
24x30 view camera, 250 Fuji Lens f32, k2 yellow
Ilford delta 400, d76.
I jhimages.co.uk I Twitter I
I took the same picture over a year ago but I was never happy with the result as I hadn't lined up the lines correctly, so I went back and got this. I am happy with the result from this one with all of the lines lined up.
The building is the atrium of City Point in London.
Also thank you for all of the recent comments and favourites they are really appreciated.
In the coloured development with lith and sienna (glycine), highlights and mid-tones come out reddish yellow and the shadows slightly greenish. If this shade colour is not desired, it can be toned briefly in selenium. Because polychrome prints react to selenium toner with a clear increase in density, the toner should be diluted at least 1+20 and toned for no longer than one minute. With longer toning times the hue shifts towards magenta, but in such cases it is necessary to print considerably lighter, because otherwise the differentiation of the tonal values suffers due to an enormous increase in density.
For me, the real advantage of this development method is not so much the more variable colouring, but the possibility to show the lower mid-tones brighter than usual, in addition to a narrow band of deep shadow densities.
After selenium toning, this effect recedes a little because the colour contrast also contributes to the separation of the tonal values.
Bei der farbigen Entwicklung mit Lith und Siena (Glycin) kommen Lichter und Mitten rötlich gelb und die Schatten leicht grünlich. Ist diese Schattenfarbe nicht erwünscht, kann kurz in Selen getont werden. Weil Polychrome Prints mit einer deutlichen Dichtezunahme auf Selentoner reagieren, sollte der Toner mindestens 1+20 verdünnt werden und nicht länger als eine Minute getont werden. Bei längeren Tonungszeiten verschiebt sich der Ton in Richtung Magenta, in solchen Fällen muß jedoch erheblich heller geprintet werden, weil sonst wegen einer enormen Dichtezunahme die Differenzierung der Tonwerte leidet.
Der wirkliche Vorteil dieses Entwicklungsverfahrens ist für mich, nicht so sehr die variablere Farbgebung, sondern die Möglichkeit neben einem schmalem Band von tiefen Schattendichten, die unteren Mitteltöne heller darzustellen als üblicherweise.
Nach einer Selentonung geht dieser Effekt ein wenig zurück, weil auch der Farbkontrast zur Trennung der Tonwerte beiträgt.
A developer tuning for subtle light tones. Pretty without toning, I think. However for completion a Selenium toning 1+10 two minutes.
Developer settings:
SE5 Lith A+B+D+water 60+60+10+900ml
Lith G: 800ml water + 10 Lith G + 10ml Ammonium chloride 20% + 2ml Lith D + 10ml Lith B
HP5 in Finol,
Kallitype onto Hahnemühle Platinum Rag,
Sodium acetate developer, ATs fixer, MT16 Selenium for Kallitype 1+40 1 minute
Rolleiflex sl 66,delta 400, DDX 1+4
Ilford multigrade fb classic 1k 24x30cm/ 20x20cm
PQ universal
stop bath water
Alkaline Fixer
Selenium toner 1+9 2min.
Sepia toner.
With a high amount of Lith D in the developer and a second developer with ammonium chloride the highlights turn red and the shadows take on a greenish tone with Fomatone papers. After a short selenium toning, the image tone becomes uniformly red.
Fomatone 131
SE5 Lith 4,5 mins followed by Lith G 4,5 mins
MT1 Selenium toner 1+20 3 mins.
Developer settings:
SE5 Lith A+B+D+water 40+40+50+900ml
Lith G: 800ml water + 10 Lith G + 20ml Ammonium chloride 20% + 2ml Lith D + 10ml Lith B
Untoned www.flickr.com/photos/wolfgang_moersch/50541399507/in/dat...