View allAll Photos Tagged selenium
Metrawatt Leica-METER MC.
Ok, now let's see if we can reach the Selenium Cell.
Start by removing this screw (see red arrow).
Wanted to try some Selenium treatment on the Bow, as I haven't played with that colour palate in a while. Originally was going to upload the B&W version, but I think this one popped a bit more.
The palace on Peacock Island, near Berlin, built by Friedrich Wilhelm II at the end of the 18th century.
Printed on Ilford MGIV Warmtone RC
11 seconds
f/ 8.5
2 contrast
Ilford PQ developer
2.5 minute selenium toner
Selenium light meter with incident-light "invercone" attachment. Has two ranges, the low one selected by opening a mask on the back which allows more light onto the cell, and shifts the scale to a 0-10 range.
Unfortunately the measurement switch does not work on this one, but I think the selenium cell is OK, so it may be fixable.
Scan from print:
Paper: Adox MCP312
Developer: Mörsch Eco
Toner: Kodak Rapid Selenium
Film Info:
Film: Ilford HP5+ @3200
Developer: Rodinal 1:25
Lens: Nikkor 50mm 1.4G
Camera: Nikon F6
A very nice camera - shame it takes 126 film, and so seems very unlikely I'll get to use it.
It seems to be made of two polished, cast steel blocks, faced by plastic, covered with leatherette. It's very heavy and business-like. The lens collapses, to hide the shutter-speed scale, through a button in the base.
Made in Germany by Kodak AG, 1963-1966 (only available in the US for the last year). It has a coupled, Gossen-branded selenium light meter with a needle-centre display in the viewfinder - which still seems to work accurately. Compur shutter 1/30-1/500 + B, distance scale (in feet on this one) with click-stops for three distance zones - with two small pins on the rim to help grip. Schneider-Kreuznach Xenar (Tessar copy) 38mm f/2.8 lens, stopping to f/22.
Nice features such as a click-stopped stay on the film door to hold it open during loading, a short-throw (90°) advance lever set into the base at the back, worked by the right thumb, and both hot-shoe and PC flash connections.
See also Lens Block close-up.
These are some delicious sauteed mushrooms our friend and neighbor Daisy Rouse made as a side dish for our Christmas Eve dinner. They were so wonderful! Daisy is such a marvelous cook.
INFORMATION ON THE MUSHROOM:
A mushroom is the fleshy, spore-bearing fruiting body of a fungus, typically produced above ground on soil or on its food source. The standard for the name "mushroom" is the cultivated white button mushroom, Agaricus bisporus, hence the word mushroom is most often applied to those fungi (Basidiomycota, Agaricomycetes) that have a stem (stipe), a cap (pileus), and gills (lamellae, sing. lamella) on the underside of the cap, just as do store-bought white mushrooms.
The word "mushroom" can also be used for a wide variety of gilled fungi, with or without stems, and the term is used even more generally, to describe both the fleshy fruiting bodies of some Ascomycota and the woody or leathery fruiting bodies of some Basidiomycota, depending upon the context of the word.
Forms deviating from the standard form usually have more specific names, such as "puffball", "stinkhorn", and "morel", and gilled mushrooms themselves are often called "agarics" in reference to their similarity to Agaricus or their placement in the order Agaricales. By extension, "mushroom" can also designate the entire fungus when in culture or the thallus (called a mycelium) of species forming the fruiting bodies called mushrooms.
EDIBLE MUSHROOMS:
Edible mushrooms are used extensively in cooking, in many cuisines (notably Chinese, European, and Japanese). Though mushrooms are commonly thought to have little nutritional value, many species are high in fiber and provide vitamins such as thiamine, riboflavin, niacin, biotin, cobalamins, ascorbic acid. Though not normally a significant source of vitamin D, some mushrooms can become significant sources after exposure to ultraviolet light, though this also darkens their skin. Mushrooms are also a source of some minerals, including iron, selenium, potassium and phosphorus.
Most mushrooms that are sold in super markets have been commercially grown on mushroom farms. The most popular of these, Agaricus bisporus, is generally considered safe for most people to eat because it is grown in controlled, sterilized environments, though some individuals do not tolerate it well. Several varieties of A. bisporus are grown commercially, including whites, crimini, and portabello. Other cultivated species now available at many grocers include shiitake, maitake or hen-of-the-woods, oyster, and enoki.
There are a number of species of mushroom that are poisonous, and although some resemble certain edible species, eating them could be fatal. Eating mushrooms gathered in the wild is risky and should not be undertaken by individuals not knowledgeable in mushroom identification, unless the individuals limit themselves to a relatively small number of good edible species that are visually distinctive. However even A. bisporus contains 'agaritine' which metabolises when eaten into hydrazine, which is carcinogenic, but this chemical is largely or completely removed by cooking.
More generally, and particularly with gilled mushrooms, separating edible from poisonous species requires meticulous attention to detail; there is no single trait by which all toxic mushrooms can be identified, nor one by which all edible mushrooms can be identified.
Source: Wikipedia
2 Viewfinder modules for the Zeiss Ikon Tenax Automatic. This module also houses the Selenium lightcell.
Produced about 1960.
More info about the Tenax Automatic can be found here :
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
A selenium rectifier. These were used from the 30s to 50s until they were replaced by silicon diodes.
First try with Lith Printing
20x30cm
Bergger Prestige NB 3 graded (FB / Baryt)
Moersch SE5 Lith Master Kit (30ml A + 35ml B + 15ml D)
Moersch Lith Omega for 30 seconds
Selenium Toning in Moersch MT1 1+10 for 80 seconds
exposed with a Jobo LPL 7450 with a Rodenstock APO-Rodagon 50 /f2.8 and Heiland Splitgrade unit (white light)
Scanned on an Epson Perfection V700 using Vuescan
Picture taken with a Leica M4-2 and a 35mm Voigtländer Nokton 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/8180412805/
Thanks to Dario for the chemistry!
Lith Print
Paper: Kodak Ektalure X (tweed texture) 8x10, expired 1983
Developer: Moersch SE5
Toner: Ilford Selenium 1:4
Camera: Bronica SQ-A, 80mm 2.8
Film: FP4+ in ID-11
Lighting: only a 200 watt clear incandescent light bulb
Hanging about in cemeteries may not be everyone's cup of tea, but my local one has some interesting trees which justify spending some time there. The more I look at this print, the more I think the neg would have been better shot in less bright conditions. Controlling the highlights and getting the right range of tones in the print has been a bit of a struggle. Still, some selenium and gold has helped the image tremendously.
Lith print on Fomatone 132, Moersch SE5 (25a+25b+10d+1200). Toned in selenium and gold.
Mamiya RB67 ProSD, Kodak Tri-X 400, Rodinal 1+50
Selenium meter cells surround the F2.8 45mm Industar-63 lens. This classic 1960's 35mm film camera was the first fully automatic camera produced in the former Soviet Union.
Shot using 55mm F2.8 Micro Nikkor lens on FTZ adaptor
Camera: Minolta X-300
Lens: Minolta Rokkor MD (28mm, f2.8)
Film: Ilford XP2 Super 400
Leningrad-7 Selenium Photocell Light Meter and its original leather case, both made in USSR. It still works but it's a bit off due to decay of the selenium cell. Taken March 2017
(Selfscanned Negative, using CanoScan 9000F Mk II)
Processing - selenium toning and graduated filters in Lightroom 3.
Canon 5D MK II
Canon EF 16-35mm f/2.8L II USM
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Decided to do a monochrome conversion to make the most of this military aviation scenery. Input welcome...
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Just another reminder to get your pro-Growler comments in to WhidbeyEIS.com please. Also there are two meetings for aviation photogs this week on this:
Wednesday, October 29, 2014
4:00 p.m. to 8:00 p.m.
Oak Harbor Elks Lodge
155 NE Ernst Street
Oak Harbor, WA 98277
Thursday, October 30, 2014
4:00 p.m. to 8:00 p.m.
Anacortes Middle School Cafeteria
2202 M Avenue
Anacortes, WA 98221
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300th photo to the OLF group: www.flickr.com/groups/nolfcoupeville/
More often than not, when I find a Petri camera, it's broken. Amazingly, I found this one in working condition, including the selenium cell meter. There are many examples of the 7 S available in thrift stores and online as Petri made this particular model for over a decade. A pleasant, clean industrial design worthy of a spot on my shelves.
Manufactured byFED factory in Kharkov, Ukraine, former USSR
ФЭД Атлас = FED Atlas
Model: c.1970, type 2b (produced between 1967-70)
All FED-Atlas produced between 1967-71 with 22.805 units.
It is also known as FED-11 Atlas
There are 3 types and 3 sub-types of the FED-Atlas cemera
As to Alexander Komarov
35mm film Rangefinder camera
Lens:Industar-61 52mm f/2.8 silver and bronze finish lens-shutter barrel, filter slip on, serial no.6828770
Aperture: f/2.8-f/16setting:ring coupled with speeds ring w/ handles, manual possible by pressing the un-locking knob on the lens shutter barrel just beside the handle
Focus range: 0.9-20m +inf
Focusing:match the rangefinder images in the finder, by turning the front ring on the lens, distance and DOF scales on it
Shutter: leaf shutter, speeds: 1-1/250 +B setting: ring coupled with aperture ring
Shutter release: a knob on front of the camera w/ cable release socket
Cocking lever: also winds the film, on the back of the top plate, long stroke
Frame counter: window on the bottom plate, auto reser, advance type
Viewfinder: coupled viewfinder / rangefinder, bright-frame, the light meter arrow visible in the finder
Exposure meter: Selenium cell
Film speed range: 16-250 ASA, setting: lever and scale on the bottom of the lens, w/secure knob
Exposure setting: centered the needle in window on the top plate by turning the aperture/speeds ring
Re-wind lever : folding type on the top plate
Re-wind release: knob on the bottom plate
Flash PC socket:on front of the camera, X and M sync setting lever behind the lens-shutter barrel
Cold-shoe
Memory dial: none
Self-timer: set to A the X and M setting lever
Back cover: removable, opens by a latch on the right side
Tripod socket: 3/8" w/ 1/4" adapter
Strap lugs: none
Body: metal; Weight:
serial no.6800122
This camera is a follow on to the FED-10. The film speed setting has been moved to the lens mount and there is a rewind crank on this model. It appears that a series of interchangeable lenses was intended for this model as the lens is removable, however no other lenses are known. Interestingly the manual also says to never remove the lens. This camera is covered with nylon cloth.
More info: in Fotoua
Lightmeter Parts Box 2
Lighmeter Honeycomb and selenium cell parts in this tin box which originally held Will's Gold Flake Cigarettes.
One of the prom photos I did for my god-daughter. Selenium tone was done in Adobe Lightroom, added Vette logo tattoo in Photoshop.
I received an email from a gentleman who was disposing of his late father's estate. He didn't want his dad's Ricoh rangefinder to end up at a thrift store or auctioned online. He offered it to me as long as I would take care good of it. I agreed and said I would be proud to display it.
What arrived was a whole kit: camera, Konica meter, Ricoh bulb flash, filters, lens hood, leather camera case and all instructions. The camera itself is in very fine condition. The focusing ring is very stiff, stuck actually. No doubt the result of the original lubricant decaying to glue over the many decades. I will certainly attend to that and return the camera to its full glory.
Taken with the Ilford Obscura Pinhole camera, with delta 100 developed in HC-110b, and then contact printed on Ilford Multigrade IV matte paper and selenium toned.
Complete with dust! Bloody dust, I can't seem to get rid of it!
Zeiss Ikon Vintage Test Lightmeters.
An retired repairman told me that these selenium cell powered lightmeters were used to check other "normal" lightmeters. That's all i know.
These meters clearly use the housing of the "normal" Ikophot model which was produced in the middle of the nineteen-fifthies.
Only adoptions seem to be the removal of the Dials and the use of another Scale.
The readings of both meters are about the same which is not bad for selenium lightmeters more then fifty years old
Why one is numbered 33 and the other 34 i don't know. Maybe serial numbers ?
Zenit-EM (1974)
Helios-44M-4 lens, f=58mm, 1:2
Cloth focal plane shutter. Speeds 1/30-500 and B.
Uncoupled selenium light meter.
35mm film (24x36)
Produced by KMZ (Krasnogorsk) in the former USSR
I have also a chrome version of this one
Here some shots taken with this camera.
You can see it on Camerapedia
Visit my blog at Classic Cameras
Contact composition: Times Square. Ilford hp5+ 120, printed on Ilford warmtone fiber based paper, toned in selenium.
Day - 34 - Selenium
Stanleya is a genus of six species of plants in the mustard family known commonly as prince's plumes. These are herbs or erect shrubs which bear dense, plumelike inflorescences of white to bright yellow flowers with long stamens. Stanleya species are native to the western United States. These plants are toxic because they concentrate selenium from the soil in their tissues.
Sabine considering (Apr 11). Leica M6 on TMax 100, developed in RHS and selenium toner, scan of print
Fundado em 13 de Junho de 1808 por d. João, Príncipe Regente na época, mais tarde d. João VI, o Jardim Botânico em seus 137 hectares, 55 abertos à visitação pública, abriga um acervo botânico da flora brasileira e exótica e um acervo histórico-cultural.
Foi intenção de d. João VI aclimatar, na área que desapropriara para a instalação de uma fábrica de pólvora para a defesa da sua Coroa, especiarias trazidas das Índias Orientais.
De jardim de Aclimatação e Real Horto, após a coroação de d. João VI como rei do Reino Unido de Portugal e Brasil, passou a chamar-se Real Jardim Botânico. Somente no Reinado de Pedro I foi aberto à visitação pública, já com o nome de Jardim Botânico.
Em 1937, foi tombado pelo Instituto do Patrimônio Histórico e Artístico Nacional, e definido pela Unesco como Reserva da Biosfera, em 1992, e como Reserva da Biosfera da Mata Atlântica, em 1999. Tem como missão "Promover, realizar e divulgar o ensino e as pesquisas técnico-científicas sobre os recursos florísticos do Brasil, visando o conhecimento e a conservação da biodiversidade, assim como a manutenção das coleções científicas sob sua responsabilidade."
fonte: Trilha Histórica Jardim Botânico
Local: Jardim Botânico