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Warren Patrol wrist-watch selenium exposure meter, 1950, USA. Case is made of some plastic, wrist band is a metal one

Bessa R2A, Delta 400, Printed on Adox MCC112, SE2 Warm, Selenium, MT3a, 18x24 cm

Plus-x in efd

Record Rapid RRN111 in Catechol/Se6 + bleach/thiourea/selenium

traitement: DxO néo Sélénium

Comparison Of Active Ingredients Between Wild Cordyceps And Cordycept Sinensis.

 

Avatar Represent Sign

- Cordyceps Sinensis : CS

- Wild Cordyceps : WC

  

Ingredient

 

D-Mannitol - 6.49% (CS), 5.7% (WC)

 

Cordicepin - 20.78ug/10ul (CS), 0.608ug/10ul (WC)

 

Cordyceps Polysaccharide - 24.44±0.34% (WC), 12.15±0.21% (CS)

 

Crude Oil - 10.56±0.38% (WC), 3.14±0.03% (CS)

 

TN - 11.38±0.02% (CS), 4.55±0.03% (WC)

 

Crude Protein - 71.14±0.13% (CS), 28.45±0.02% (WC)

 

Phosphorus - 12457ug/g (CS), 3671ug/g (WC)

 

Potassium - 19841ug/g (CS), 3975ug/g (WC)

 

Zinc - 127.6ug/g (CS), 13.9ug/g (WC)

 

Selenium - 0.54ug/g (CS), 0.340ug/g (WC)

 

Iron - 3163ug/g (WC), 829ug/g (CS)

 

Report from: Medicine Technology Research. Department Of China Jilin University.

August 2018

Credit: Bonnie Gestring/Earthworks

London Eye. Abstract.

Nellie Vin ©Photography.

Series Winter in London. UK

Limited Edition 200

Selenium Print

 

Fomatone 131 paper

Meorsch easy lith, 30+20+1000+100 ob

Selenium toner 1+20 2 minutes

24 cm x 24 cm

 

Linhof Kardan Standard / Schneider Symmar convertible 150-260mm / Forte Bromofort

  

Looking at princelle's book, 'Cameras from the Soviet Union', one notices that the quality and ambition of FED material doesn't stop decreasing over thime. This is a fine example. The FED 50 is an involution of FED 35, a parctically identical model, only that it has a coupled rangefinder and a CdS cell meter instead of the hopelessly outdated selenium meter around the lens. Some like celenium bulbs, though. My wife is one of them; in fact the camera is hers.

The prior generation of this camera, the half frame Mikron, was indeed closely 'inspired' in the simpler models of Olympus PEN snapshot cameras, and also used a barrel selenium meter.

Hey, it is an automatic camera... with single program curve :) Wich means that it can only shoot in a very limited number of diaphragm/speed combinations, which I find fairly odd.

The previous models of this generation fo cameras, the 35 and the 35a, had a coupled rangefinder, a feature that the 50 lost. What the 50 kept was the dark green tinted finder, pretty useless in my opinion, as it doesn't need to offer any contrast with a rangefinder image.

This is how the glorious history of the camera makers from Kharkhov ends

Split selenium tone (darker areas can go reddish while mid and upper values stay neutral).

"The Trip 35 is a 35mm compact camera, manufactured by Olympus. It was introduced in 1967 and discontinued, after a lengthy production run, in 1984. The Trip name was a reference to its intended market – people who wanted a compact, functional camera for holidays. During the 1970s it was the subject of an advertising campaign that featured popular British photographer David Bailey. Over ten million units were sold.

 

The Trip 35 was a point and shoot model with a 40mm f2.8 lens, solar-powered selenium light meter, and just two shutter speeds. In 'A' mode, the camera operated as a Program automatic, choosing either 1/40th sec or 1/200th sec. The camera could also sync with flash, and had a range of aperture settings, from f2.8 to f22. In flash sync mode the shutter was set at 1/40. Apart from a simple four-position zone focus system, and an ISO setting from 25–400, the camera had no other photographic controls. The camera had a Prontor-Compur sync connector and a hot shoe. Its lens was a coated Zuiko 40mm f/2.8, with four elements in three groups.

 

The camera had an ISO range of "only" 25–400, but this was acceptable, as films faster than 400 were uncommon and not of high image quality. 25 speed allowed the use of Kodachrome, while 400 speed allowed use of Tri-X and similar fast materials under low light.

 

Earlier models, from the first few years of production, had a maximum ISO speed of 200.

 

The four-element Tessar lens, still impressive today, gave high-quality images. If used with modern film emulsions, the results can be very good.

 

The use of a selenium photocell to select the shutter speeds and aperture let novices use the camera as a "point & shoot", with good results obtained most of the time. And no battery was needed to power the camera, an important consideration when travelling where batteries might not be available.

 

The lack of more than two shutter speeds was not a problem. At 1/200 and f:22 with 400-speed film, the camera could deliver correct exposure in full sunlight, while at 1/40 and f:2.8, correct exposure could be obtained under bright fluorescent light, without a flash.

 

The aperture could also be adjusted to cope with sunny/dull conditions etc., so again this allowed for better results, but in low light conditions, with perhaps a smallish aperture (for long depth of field), the camera would probably set itself to the lower speed of 1/40th, so camera shake was a possibility if higher-speed film was not used." en.wikipedia.org/wiki/Olympus_Trip_35

The mixed toning didn't work so well... The warm tone paper just goes red all over very quickly. Selenium alone works well but doesn't give me the full red I wanted.

Selenium, and it still works, though it needs an adjustment.

www.portraittipsandtechniques.com

 

Canon 5D 24mm F1.4L

Lumydine portable flash_30" softbox

Nik Silver Efex Pro

adox variotone sepia and selinum toned

Selenium buttons 99.999% (5N) sealed in ampoule.

From Flickr Group's "Roll in a Day" project, for August 18th, 2012

 

1971 Minolta Hi-Matic E 35mm Rangefinder

40mm f1.7 Rokkor Fixed Lens

Manual Rangefinder Focused

Fully Auto Exposure

Kodak Portra 160asa C-41 Film

Home developed using Tetenal Press Kit chemistry

@ normal times and temps.

Negatives scanned on Epson V-600 flatbed

Edited with Adobe Photoshop Elements 9 for Mac

and Silver Efex Pro2

 

While I was on Tim Rudman's recent lith printing workshop, I was reminded how cemeteries can yield some striking images that suit lith printing very well. This prompted a return to an old 35mm negative, which I don't think has turned out too bad as a print.

 

Lith print on Foma Nature II, developed in warm Fotospeed LD20 + old brown. Selenium toned (1+14)

 

Pentax MX, Ilford HP5+, ID-11

Some spider had a somewhat enchanting webbing and collection of pearls.

 

………………………………………………………………………………………………

One very labyrinthine spiderweb on a plain field had some nice dew drops stuck to it. Gave the shot a cyanotypish tone to simplify the image and give it a more "like the movie TRON" kind of feeling... because I was listening to the movie soundtrack (Daft Punk) at the time of post process! :D

Left is selenium tray; right is untoned print. It's a 1+8 dilution and I typically tone photos for 5 minutes. The photo is from 2011, taken with a Minolta XD-11 and a 135mm f/2 Soligor lens on Tri-X film developed in Eco Pro.

Photographed on the Solent at the Lepe Country Park in Hampshire. This has been given the appearance of selenium toning in Lightroom - so much easier and less poisonous than doing it in the old days!

Edge Road, Eyam.

August 2018

Credit: Bonnie Gestring/Earthworks

Test drive

---

Make: Rollei Rolleicord III Type 2

Lens: Schneider Kreuznach Schneider Xenar 75mm f.35

Film: Kodak Ektacolor Medium Format

Film ISO: 160

Metered using: Lunix 4 Selenium Light Meter

Develop: Fujifilm C-41 chemical

Rangefinder Kiev 4 (KNEB subtype 2a)

sn# 5922914 with Jupiter-8M (ЮПИТЕР-8M) f/2 50mm sn #5930926

manufactured in 1959 by the Arsenal factory in Kiev (Ukraine)

The selenium light meter still works and is quite accurate!

 

Contax copy, made in 1959

Subtype 2a rarity: 3 out of 5

  

© Dirk HR Spennemann 2011, All Rights Reserved

August 2018

Credit: Bonnie Gestring/Earthworks

Rangefinder Kiev 4 (KNEB subtype 2a)

sn# 5922914 with Jupiter-8M (ЮПИТЕР-8M) f/2 50mm sn #5930926

manufactured in 1959 by the Arsenal factory in Kiev (Ukraine)

The selenium light meter still works and is quite accurate!

 

Contax copy, made in 1959

Subtype 2a rarity: 3 out of 5

  

© Dirk HR Spennemann 2011, All Rights Reserved

This is the Selenium cell on the Yashica EZ-Matic

Canon sparepart lightmeter.

 

Still in its transport box.

 

Reference-number on the box C20121

 

The Selenium cell still functions. Here the needle in the dark situation.

 

A glance in McKeowns and further Internet searchs seems to indicate that this lightmeter could belong to a Canonflex RM (1962-1964). Further information welcome.

Alium given the selenium effect in Photoshop

Selenium meter made in France by Chauvin Arnoux. I am not yet sure which version this exactly is, so I can only say it is made between 1954 and 1960.

 

(More pictures of this and other meters on my site www.kolumbus.fi/puistot/collection.)

Printed on Ilford FB Matte paper.

 

Selenium toned 15 minutes 1:10

 

Taken in Marfa, TX

An old selenium rectifier. What I remember most about these is that when they fail, they really stink.

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