View allAll Photos Tagged Selenium
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Name: Selenium
Symbol: Se
Atomic Number: 34
Standard Atomic Weight: 78.971
Electron Configuration: 2, 8, 18, 6
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Scan of selenium toned print. My photoshop skills just aren't up to my darkroom when it comes to b&w. All my other posts thus far have been scans from negatives/slides but this scan from my print, though 3rd gen, is better than what I've been able to get out of my digital editing.
Photograph scanned from an original hand-printed, selenium-toned print made with Ilford MG FB Classic paper.
Copyrighted material - Do not use, reproduce or alter without the author's written permission.
Reference: FLA-150811-ND800E-26052-bw-selenium
©2015 Fernando Lopez Arbarello - All Rights Reserved
ARBARELLO FINE ART: http://www.arbarello.com.html
The age of this power supply box is not known. It stands in the old phone distributing center of the fortress «Furggels». All parts are precise wired and could be repaired if necessary. Old military fortress above Pfäfers, St. Margrethenberg, Switzerland, July 24, 2011.
This camera has a built in selenium meter but the ISO settings available are 10, 32 & 64. I notice some slight vignetting on the edges and everything has a bit of a pink hue to it. The film was given to me by a friend but now I'm trying to remember if he said it was expired or not. I really must write these things down, lol
1959 Braun Paxette Electromatic
Kodak Gold 200
ISO 200
Shot at ISO 64
Process & Scan by A+M Imaging, Unit 3, Stewartfield, Edinburgh
www.gardensofscotland.org/garden.aspx?id=abdd1a5f-b2c8-40...
Photograph scanned from an original hand-printed, selenium-toned print made with Ilford MG FB Classic paper.
Antwerp Central Station late on a Monday evening, so not very busy. This is the central hall, which I find very impressive.
About the image: a 5 exposure HDR generated using Nik HDR Efex, then converted to mono (duotone selenium) using Nik Silver Efex.
Photograph scanned from an original hand-printed, selenium-toned print made with Ilford MG FB Classic paper.
The waterfall at Lassiter Mill Park in Raleigh. Added a Selenium tone to it.
Seen in Explore 10.27.2008
This is a close up of the white fluff on my little cactus, you can see the spines in the background. Taken with a reversed 50mm lens on the front of a 105mm Nikkor Micro lens.
Selenium blue filter applied in Lightroom.
Photograph scanned from an original hand-printed, selenium-toned print made with Ilford MG FB Classic paper.
Brazil nut (Bertholletia excelsa), family Lecythidaceae, Castanha-do-Pará. High in selenium. Limit of two per day recommended.
Metrawatt Leica-METER MC.
Rearside of the extracted Selenium module.
As you can see there is also a wire soldered to it here.
Besides the stamps (factory ? Batchnr. ?) also some handwritten ciphers.
9/55, Production date Sept.1955 ? Possible.
10/65, Expiring date Okt.1965 ? How cruel ;-)
The dimensions are :
Width : 36 mm
Height : 10 mm
Thickness : 0,9 mm
Don't you love the quality of these old cameras, this one dates from the mid 60s
Type: viewfinder camera
Films: 35mm
Lens: 1:2.8 / 45mm Halinar Anastigmat
Shutter speed: 1/30-1/250 sec.
Aperture: 1:2.8-1:16
Metering: selenium meter, EV-value from exposure meter scale has to be transferred manually by turning the f-stop ring until the EV-value appears in the EV-scale index window on the lens tube
Selenium in sandstone from New Mexico, USA. (SDSMT 3909, South Dakota School of Mines and Technology Museum of Geology, Rapid City, South Dakota, USA)
A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties. At its simplest, a mineral is a naturally-occurring solid chemical. Currently, there are over 4900 named and described minerals - about 200 of them are common and about 20 of them are very common. Mineral classification is based on anion chemistry. Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.
Elements are fundamental substances of matter - matter that is composed of the same types of atoms. At present, 118 elements are known (four of them are still unnamed). Of these, 98 occur naturally on Earth (hydrogen to californium). Most of these occur in rocks & minerals, although some occur in very small, trace amounts. Only some elements occur in their native elemental state as minerals.
To find a native element in nature, it must be relatively non-reactive and there must be some concentration process. Metallic, semimetallic (metalloid), and nonmetallic elements are known in their native state.
The rock shown above is from a "roll front deposit", in which native selenium occurs along a redox front in fluvial sandstone (see Granger & Santos, 1982).
Stratigraphy & age of host rock: fluvial sandstone, Westwater Canyon Member, Morrison Formation, Upper Jurassic
Locality; Section 23 Mine, Ambrosia Lake Mining District, north of Grants, New Mexico, USA
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Reference cited:
Granger & Santos (1982) - Geology and ore deposits of the Section 23 Mine, Ambrosia Lake District, New Mexico. United States Geological Survey Open-File Report 82-207. 70 pp.
Selenium cell was broken!..
Manufactured by LOMO (Leningrad Optical-Mechanical Union = Ленинградское Oптико-Mеханическое Oбъединение, ЛОМО́), in Leningrad, former USSR.
Voskhod (earlier versions are marked in Cyrillic: Восход) means "sunrise" or "ascent" in Russian; later, export models are marked in Latin lettering
Model: 1966 type 5 (export version)
All Voskhod produced between 1964-68 with quantity of 59.000
There are 5 types and 5 sub-types of the camera
As to Alexander Komarov
35mm film Viewfinder camera
Lens: LOMO T-48 (Triplet) 45mm f/2.8, filter slip-on, serial no. none
Aperture: up to f/22setting: ring and scale on the lens-shutter barrel
Focus range: 1-8m +inf,
Focusing: manual front cell; ring, distance scale with symbols and DOF scale on the lens
Shutter: leaf shutter; speeds: 1-1/250 +B; setting: ring and scale on the lens-shutter barrel
Shutter speeds and aperture numbers are linked together by means of mechanical coupling. When turning the apertures or shutter speeds rings, the other turns too.
They can be turned separately by the pressing the knobs on the lens-shutter barrel
Shutter release: on the front plate, w/ cable release socket
Cocking lever: also winds the film, shark-fine like shape, on the lens-shutter barrel
Frame counter: manual reset, decreasing type, window on the top-plate
Viewfinder: Galileo type bright frame finder w/ parallax correction lines
Exposure meter: coupled built-in Selenium cell meter
Film speed range: 12-26 DIN, 11-250 GOST, setting: by a thumb ring and windows on the bottom plate
Exposure setting: after setting the shutter speed or aperture, check the needle in the viewfinder, it must be on the middle of the lower bright line, if not, turn the aperture-speeds rings to find the correct exposure
Re-wind lever: folding crank, on the top-plate
Re-wind release: on the bottom plate
Flash PC socket: on the front plate
Cold-shoe
Memory dial : small window and thumb lever on the front plate, with Cyrillic characters
Self-timer: none
Back cover: hinged, opens by a latch on the left side of the camera
Engraving on the back cover: Made in USSR
Tripod socket: 3/8"
Strap lugs
Body: metal; Weight: 690g
Serial no. 661919, in the camera, first two letters show the production year
Some very rare early models bear the LOOMP logo.
More info: in Cameras by Alfred Klomp, in Soviecams by Aidas Pikiotas, in Fotoua by Alexander Komarov, in Camerapedia
Taken with a Fujinon-W 135mm lens mounted on a Graflex Pacemaker Speed Graphic. Printed on Fomatone MG Classic and selenium toned.
silver gelatin print
watercolor paper coated with Rollei Black Magic liquid emulsion
sepia & selenium toned
oriental seagull vc-fb II glossy cooltone, selenium 1+9 15 min,
arista premium liquid lith 1+1+24+old brown
, b+w #89,
hc-110, ilford sfx 200 ei400, heliar classic 50/2.
I bought this a while ago from a car boot. Initially They wanted two quid, at which I walked. A few weeks later they took 50p. However, it looked faulty. Still, came in a cute little zipped leather case!
Forgot all about it until this evening. I took it apart, bent a copper strip that pushes the selenium cell forwards, and hey ... it works! It might need some calibration though, I feel that it underexposes a wee bit, at least against the light meter in my Sony DSLR.
Olympus OM-1n
Olympus 100mm F2.0
Agfa APX100
Rodinal 1-50
Forte PolyWarmtone 11x14
Dektol 1-4
Selenium Toned
Print Scan Epson v700
Location: West Central Minnesota
Equipment Used: Hasselblad - 120mm Planar
Film & Developer: Acros - D76
Paper & Developer: Ilford Warmtone - Dektol - Selenium
Researchers at the Pacific Northwest National Laboratory aimed to make micro- and nanostructures of selenium in a single heat-treatment. Here, a pseudo-colored scanning electron micrograph of multi-phase selenium microstructures is shown as-grown in a single experiment on a fused quartz substrate while under vacuum in a sealed glass vessel.
Terms of Use: Our images are freely and publicly available for use with the credit line, "Courtesy of Pacific Northwest National Laboratory." Please use provided caption information for use in appropriate context.
Selenium coupled meter with flash synchronization to 1/1000 sec Fully serviceable, this is actually heavier than my Lynx 5000
IMG_0074
Found in a catch-all bag of filters and miscellaneous items purchased from a thrift store. Came with its leather case. The meter still functions and is a small wonder of construction. Thought I should document it in direct sunlight one last time. I'll keep it in its case and away from direct light; I want that selenium cell's sensitivity to last a little longer.
Looking for a replacement for my favorite Kentmere Kentona. This is Kentmere Finegrain VC FB, toned in selenium.
Tower Bridge. Abstract.
Nellie Vin ©Photography.
Series Winter in London. UK
Limited Edition 200
Selenium Print
Print for the upcoming SOSeth exhibition at ETH und Uni Zurich
final size 39x26cm
Adox MCP 310 (glossy)
developed in Moersch Eco 4812 1+9 with 6ml Finisher Blue for 2 Minutes
Selenium Toning in Moersch MT1 1+15 for 2:45 Minutes
exposed with a Jobo LPL 7450 with a Rodenstock Rodagon 80 f/4 and Heiland Splitgrade unit (correction +0.6f +1.2G)
Picture taken with a Leica M6TTL and 50mm Summicron Type V on AGFA APX100, exposed at ISO 50 and developed in Rodinal 1+50 at 20°C for 17 Minutes
original negative scan: www.flickr.com/photos/jt-c/8180415651/