View allAll Photos Tagged reciprocity
Pinhole photograph using a Canon SLR camera. The pinhole was made in a sheet of aluminium from a soft drink can, and mounted in the centre of a hole drilled in the middle of a plastic camera body cap. The pinhole was approximately 0.3-0.4 mm in diameter, the focal length was approximately 45 mm. Accordingly I used an "f number" of 45/0.34, or f128 to calculate exposure.
I had read about reciprocity failure (where film sensitivity reduces during long, low light exposures) and increased the exposure accordingly. Unfortunately I over compensated, and the negatives came out very dark.
I used Ilford HP5 Plus 400 ASA/ISO 35 mm black and white film. This is a scan of the print.
Roughly eqivalent to a 7776 pixel image...
Part of a pair, the optical glass lens equivalent is adjacent in this photostream.
Testing the new Adox CHS100 II. Xtol 1+1. 7.5 minutes at 20C. 5x4 negative, 150mm Xenar at f11. Shot with dull available light in my living room.
My test card shots look good so I reckon the box speed is about right and reciprocity is minimal at 4 seconds. The 17 step grey scale is all clearly separated at the calculated exposure and still at plus one stop.
First attempts, very underexposed, because I'd forgotten about extending the exposure to compensate for the film's reciprocity failure. Doh. Trying again this coming weekend...
Two things I keep meaning to do more of are monochrome and architecture. So what better way to combine the two than to make a study of the elegantly carved pillars of this fascinating little church? The exposure was the result of much guesswork, factoring in slowly diminishing natural light as well as reciprocity failure. Sticking my finger in the air, counting to three and praying to the almighty god Acros resulted in an exposure time of around 16 minutes - which wasn't really far off. Phew!
A bit of Photoshopping to tease out the tones resulted in an image which is pretty much what I envisaged at the time - ghostly pillars receding into darkness.
This is from a series of still lifes that I shot on Monday. I'm doing some testing of my new Nikkor 300mm W lens and trying to get my view camera technique nailed down. These negatives got a little dark, but they're still printable. Next time I set up a still life like this, I won't do N+1 processing, I just develop normally. I had a 4 stop range when I metered, and wanted a 5 stop range, so I added 30% to my development times, but subtracted 20% for reciprocity compensation due to this being a long exposure. It's something new I learned: If you have to add exposure to correct for a film's reciprocity characteristics, you conversely have to decrease development so that you don't blow out the highlights. The end result was dark negatives.
Camera: Deardorff V8.
Lens: Nikkor 300mm W.
Film: Arista.edu 100 (Fomapan 100) developed in Clayton F76+
(Photo taken with Pentax 645N and 75mm f/2.8 lens with Velvia 50) -- as shot, no postprocessing. I think I didn't account for reciprocity effect here. Got funky colors from long exposure
Okay so I was not 100% pleased with my results for week three. The trouble using a film that I don't know what sort of reciprocity failure it has and trekking out into the cold Toronto night to do some long exposure and hop from bar to bar in the process. But actually there are a few here that I'm good with. One film to rule them all.
Hasselblad 500c - Carl Zeiss Planar 80mm 1:2.8 - Rollei RPX 100 @ ASA-100
Rollei RPX-D (1+15) 6:30 @ 20C
Meter: Pentax Spotmeter V
Scanner: Epson V700
Editor: Adobe Photoshop CC (2015)
Finally, the last of the crappy plates. Now to pour some clean ones.
Shot with the Travelwide; metered at 30 seconds (it was shady) and shot at 30 seconds @ f/22 (plate rated at ISO 0.8). There's a little reciprocity failure, as the negative is somewhat thin, but less than I might have guessed.
Fair bit of breeze, so lots of movement in the foliage. Also, I forgot to bring a cable release, so was holding on to the shutter with my finger, as the shutter on the Angulon doesn't have a T setting. Probably some vibration transmitted, although I tried to keep a light touch. Apparently having crappy plates causes all the standards to drop...
The Daasanach (also known as the Marille or Geleba) are an ethnic group inhabiting parts of Ethiopia, Kenya and Sudan. Their main homeland is in the Debub Omo Zone of the Southern Nations, Nationalities, and People's Region, adjacent to Lake Turkana. According to the 2007 national census, they number 48,067 people (or 0.07% of the total population of Ethiopia), of whom 1,481 are urban dwellers.
There are a number of variant spellings of Daasanach, including Dasenach and Dassanech (the latter used in an episode about them in the TV series Tribe). Daasanach is the primary name given in the Ethnologue language entry.
The Daasanach are also called Marille especially by their neighbours, the Turkana of Kenya. The Daasanach are traditionally pastoralists, but in recent years have become primarily agropastoral. Having lost the majority of their lands over the past fifty years or so, primarily as a result from being excluded from their traditional Kenyan lands, including on both sides of Lake Turkana, and the 'Ilemi Triangle' of Sudan, they have suffered a massive decrease in the numbers of cattle, goats and sheep. As a result, large numbers of them have moved to areas closer to the Omo River, where they attempt to grow enough crops to survive. There is much disease along the river (including tsetse, which has increased with forest and woodland development there), however, making this solution to their economic plight difficult. Like many pastoral peoples throughout this region of Africa, the Daasanach are a highly egalitarian society, with a social system involving age sets and clan lineages - both of which involve strong reciprocity relations.
The Daasanach today speak the Daasanach language. It belongs to the Cushitic branch of the Afro-Asiatic family. The language is notable for its large number of noun classes, irregular verb system, and implosive consonants. For instance, the initial D in Daasanach is implosive, sometimes written as 'D.
Modern genetic analysis of the Daasanach indicates that they are more closely related to Nilo-Saharan and Niger-Congo-speaking populations inhabiting Tanzania than they are to the Cushitic and Semitic Afro-Asiatic-speaking populations of Ethiopia. This suggests that the Daasanach were originally Nilo-Saharan speakers, sharing common origins with the Pokot. In the 19th century, the Nilotic ancestors of these two populations are believed to have begun separate migrations, with one group heading southwards into the African Great Lakes region and the other group settling in southern Ethiopia. There, the early Daasanach Nilotes would have come into contact with a Cushitic-speaking population, and eventually adopted this group's Afro-Asiatic language.
"Is it possible for a person to love without wanting love back? Is anything so pure? Or is love, by its nature, a reciprocity, like oceans and clouds, an evaporating of seawater and a replenishing by rain?" --Alan Lightman
Cupid and Psyche by Canova
The Louvre
Streetlights are NOT this colour. I think this may be some sort of problem to do with film reciprocity, but I'm not sure. (In fact, no, probably not reciprocity now I think of it. Probably just underexposure, with the shutter speed being limited to 10 seconds... 10s, f/8.4, ISO100... hmm).
This is studio 20 at the art school with the lights off. It was nice and warm and orangey, lit by one of the streetlights outside.
Followers leave treats at each other's altar. Under the eyeless stare of the saint, reciprocity runs through the mass of strangers.
Got up Sunday morning and finally got around to making a temporary lens board for the Super-Angulon 121/8 I picked up a while back. Wanted to try it out, but a gray snowy yucky day outside, so dragged the CC-400 down to the kitchen to shoot something boring. Made an interesting mistake, though: discovered a couple of film holders that had film in them; fortunately I checked before opening them. Had thought it was HP5+ (ISO 400) and shot accordingly. Upon developing them, I found the negatives surprisingly thin. Turns out the film was actually Arista.EDU Ultra 100. Oops. Still a surprising amount of detail, particularly in the way-underexposed flowers.
Was a bit cavalier with the negs, thinking there was very little on them, hence the excess dust.
This is 8s at f/22, trying to take into account the reciprocity failure curve of HP5+.
The ring tower is a striking high-rise building in a prominent location in Vienna, where is located the headquarters of the Vienna Insurance Group. It was built in 1953-1955 after designs of Erich Boltenstern at Schottenring inside the Viennese Ringstrasse and is located at the stop Schottenring of the Wiener Linien (Vienna Public Transport). The 73 meter (93 meter height including the weather light column) high ring tower was deemed as innovative project for the reconstruction of the city.
The building, which previously stood on this plot, was the only one of the entire Scots ring which was destroyed in the Second World War. The ring tower with its 23 floors and its 20-meter high weather lighthouse is the second highest building inside Vienna's Ringstrasse. Higher is only the Gothic-style St. Stephen's Cathedral. In addition to the central office of the Vienna Insurance Group are now also offices of Wiener Stadtwerke (public utility company) in the ring tower. In the office building a total of 12,000 square meters of effective surface is available. The facade and parts of the ring tower were renovated in 1996.
Name
In a contest, a name was sought for the then very modern office skyscraper. Among 6,502 entries the name "ring tower" was chosen. There were, among other proposals, such as City House, Gutwill-house (goodwill-house), house of reciprocity, high-corner, new tower, Sonnblick-house, insurance high-rise, Vindobona-house or vision-house (farsightedness-house) of the creative population after the war. One of the submitters of the name "ring tower" was rewarded with an honorarium of 2,000 shillings.
Weather lighthouse
Weather lighthouse, seen from the ring road
On the roof there is the 20-meter high weather lighthouse with 117 lights in differently colored light signals the weather for the next day displaying (each 39 white, red and green lights as well as 2 additional air traffic control lights).
This light column is directly connected to the ZAMG (Central Institute for Meteorology and Geodynamics) on the Hohenwarte in Vienna.
Meaning of the signals:
red ascending = temperature rising
red descending = temperature falling
green ascending = weather conditions will be better
green descending = weather will be worse
Flashing red = warning lightning or storms
Flashing white = snow or ice
Ringturm 2013
Ringturm disguising
Since 2006, the ring tower is changed every year into an "art tower " by covering the building with printed webs. The covering consists of 30 printed network paths with about 3 meters wide and 63 or 36 meters in length , and the resulting area is approximately 4,000 square meters.
The previous art projects:
2006 "Don Giovianni" by Christian Ludwig Attersee (on the occasion of the Mozart Year)
2007 "Tower of Life" by Robert Hammerstiel
2008 "Tower in Bloom" by Hubert Schmalix (Blumenstillleben)
2011 "Sense of family" Xenia Hausner
2012 "Society" by Hungarian artist László Fehér
2013 "Connectedness" of the Slovak artist Dorota Sadovská
March 2015
Graflex Speed Graphic 1950 - 0.4mm pinhole - Tri-X 120 ei320- Caffenol-C-L-14ºc 60mins
600ml / 9.6g soda / 6g vit-c / 0.6g potassium bromide / 24g Asda Rich Roast instant coffee / 14ºc 60mins stand development with 10 initial inversions for first minute.
First attempt at DIY pinhole. Lens board set at 60mm focal length giving effective aperture of f150, with reciprocity adjustment the exposure was 3secs.
If you love what you do, you do it well.
`conceptual explorations: reading and understanding 'inside and outside reciprocity'
subject: unknown
subject: known
This was an experiment with the big Yashica Electo 35. The Yashica has aperture priority auto exposure. My understanding is that the shutter stays open until enough photons have been collected (or, I suppose, enough charge has passed through the CdS sensor onto a capacitor) to trigger the solenoid to close the shutter. Which is nice, as --- reciprocity failure apart --- you should get good average exposure under all lighting conditions. And so it proved.
For the record, this is HP5+, exposed at full f/1.7 aperture, and developed in Rodinal 1+25 for six minutes. Date is 11th June.
I also found that night shots only work on well lit streets, or in twilight (preferably both). Properly dark night is totally underexposed; whether through reciprocity effects or because the shutter times out, I don't know.
The rain appearing, wetting the pavement and bringing out the umbrellas, was a nice bonus.
First results from my pinhole Holga. Well, actually it is the last frame from the film :) But the only one made correctly.
The quality, I mean the resolution is not very nice... But what could you expect from this piece of plastic? Light leaks are here too in the bottom left corner :) Everything as described :)))
I think I will leave everything as is until I get used to reciprocity failure of a film and/or get some old soviet exponometer. Then I'm going to make a hole smaller thus having increase of details and exposure time :)
Top Row (L to R): Diane Gerken, Whittier Reciprocity President Ginny Ball, Kathleen Yetter, Gail Brock.
Seated (L to R): Cottey ASB President Kyla Wall, Darlene Chier, Christine Heller
Native to the rainforests of Borneo and Sumatra, the orangutan (Malay/Indonesian for "person of the forest") is an arboreal great ape with distinctive orange/brown hair. They have long arms and both opposable thumbs and toes. Orangutans are highly intelligent, with the ability to use tools, use "calculated reciprocity"and possibly even utilize linguistics. The Borneo Orangutan is endangered (~63000), while the Sumatran Orangutan is critically endangered (~7000), their main threats being deforestation, poaching and the illegal pet trade.
Depicted here is Aisha, a 2-year old (2016) juvenile who spent my time there playing on the ropes. A previous famed orangutan at the San Diego Zoo was Ken Allen aka the "Hairy Houdini" who was famed for his 3 escapes from his enclosures, wandering the zoo looking at other animals.
San Diego Zoo, Balboa Park, San Diego, California
Front entrance of the school. Photographed using the Sinar 4x5. I love the night sky here in Yellowknife, in the summer. It was about 2:00 am when I photographed this scene. Exposure f/16 2 seconds. Aperture opened up 1/2 stop to compensate for reciprocity. Tray developed using Ilford Ilfosol 3 20c 5:30 minutes. Scanned Using Epson V700... auto settings.
A spectacular and very innovative event during the festival - a "bottle" built up of layers of clay and bottles - and fired from the inside!
The fire was lit at 13.00 - by 21.00 the temperature had reached 800°C
With special thoughts of Reciprocity, who would have found this fascinating, in view of his fantastic creations using light and glass .... (www.flickr.com/photos/alanjaras/with/7307998414/#photo_73...)
For information about the festival: www.festival-ceramique-anduze.org/
4th International Architecture Biennial Rotterdam, Netherlands Architecture Institute
[Jo coenen architects], Rotterdam, the Netherlands. Information: en.nai.nl/
Springfield Township Senior Center forms a reciprocity partnership with Wyoming, holding an Open House, giving tours, demonstrating programs like Dance Yoga, Tai Chi, and watercolor. © Malinda Hartong
The interior of the Straw Hut in the McBryde Gardens on the island of Kauai. Shot with my panoramic pinhole camera, Lomo 100 film, 30 second exposure. (My intention had been to expose for the straw on the inside and blow out the sky, however I forgot to calculate for reciprocity failure so it wasn't nearly long enough. But I got the sky, and some interior instead)
26-Mar-2024 15:10
Ilford Ortho+ rated @ EI 80
Ebony 45SU
Schneider 110mm f/5.6 Super-Symmar XL
DaYi 6x17 film back set to 6x12
510 Pyro 1+100 9 mins (N) @ 20C
Pre-Wash 5 mins
Inversions first 30 sec then two every 30 sec
Two water Stop Baths - 1 min each
John Finch Alkali Fixer (1+4)
Clearing time 2 minutes. Total fix time 4 minutes
Initial wash to remove fixer : 1 min
Washing : 10 mins with frequent water changes
Ilfotol : 1 ml in 600ml for 2 minutes
No Movements
Mid tone LV = 9 1/3
Highlight = 11 1/3 (13 sky)
Shadow = 8 /3
Filters : None
Final LV=9 1/3
Reciprocity : (1 sec @ f22)
2 sec @ f22
Springfield Township Senior Center forms a reciprocity partnership with Wyoming, holding an Open House, giving tours, demonstrating programs like Dance Yoga, Tai Chi, and watercolor. © Malinda Hartong
Got up Sunday morning and finally got around to making a temporary lens board for the Super-Angulon 121/8 I picked up a while back. Wanted to try it out, but a gray snowy yucky day outside, so dragged the CC-400 down to the kitchen to shoot something boring. Made an interesting mistake, though: discovered a couple of film holders that had film in them; fortunately I checked before opening them. Had thought it was HP5+ (ISO 400) and shot accordingly. Upon developing them, I found the negatives surprisingly thin. Turns out the film was actually Arista.EDU Ultra 100. Oops. Still a surprising amount of detail, particularly in the way-underexposed flowers.
A different exposure; one has a bit of front swing, the other doesn't.
Was a bit cavalier with the negs, thinking there was very little on them, hence the excess dust.
This is 8s at f/22, trying to take into account the reciprocity failure curve of HP5+.
A spectacular and very innovative event during the festival - a "bottle" built up of layers of clay and bottles - and fired from the inside!
The fire was lit at 13.00 - by 21.00 the temperature had reached 800°C
Drawing out a bottle, so photographers could try to take photos of the interior!
With special thoughts of Reciprocity, who would have found this fascinating, in view of his fantastic creations using light and glass .... (www.flickr.com/photos/alanjaras/with/7307998414/#photo_73...)
For information about the festival: www.festival-ceramique-anduze.org/
White balance as shot.
Exposure based on dslr meter + reciprocity compensation.
Fuji Pro400H - Nikon FE.
For some time now I'm immensely enjoying Reciprocity"s British Studio Glass.
Yes, we need more beautiful glass on Flickr.
This sturdy vase is designed by Frank Lloyd Wright.
I really love the color and the lines.......
National Glass Museum Leerdam
New York State Assemblywoman Jo Anne Simon - On October 7, 2017; Congresswoman Carolyn B. Maloney joined Manhattan District Attorney Cyrus Vance, local elected officials and gun safety advocates to call on House Speaker Paul Ryan to publicly commit to not allow votes on the Sportsmen Heritage and Recreational Enhancement (SHARE) Act (HR 3668) and the Concealed Carry Reciprocity Act (CCRA) of 2017 (HR 38). The group gathered at the Gandhi statue—a symbol of peace and non—violence, in Union Square Park. (Photo by Erik McGregor)
Respect is the value I hold most dearly. It is the foundation of relationships and is critical to building trust with others. In certain ways, respect manifests itself as a kind of ethic, as in the concept of reciprocity - the 'Golden Rule." A person attempting to live by this rule treats all people, not just members of his or her in-group, with fairness, consideration and honesty. In that way respect is arguably the most essential basis for human rights, playing a huge role in resolving conflict and contributing to positive change.
I have observed that in defining what respect is, most modern cultures have moved way from the reciprocity principle and now think of respect as deference to power and authority. In our capitalist society, respect is granted to those with wealth and positional power. It doesn't take much to figure that out - think of the salesperson fawning over a well dressed person who walks into a store (remember that scene in Pretty Woman?). Or a gang shooting each other with guns to assert their power. The notion that people kill each other in the name of 'respect' is, in my mind, chilling.
This idea of equating respect with affluence is flagile. Take away the money and power and is the respect still there? Sometimes yes, sometimes no. Many times the respect goes with it. This is because emotionally, respect has to be earned, not bought, and fundamentally as humans deep down we value goodness in others over the almighty dollar.
So this brings me to my picture. Over lunch I came across 'Jeff' panhandling for change on Spring Garden Road. I wanted to get his take on the topic of respect. Amongst our social classes I'd say panhandlers are amongst the least respected. After chatting with him for awhile his take on this was that overall, North Americans worship the rich and fear the poor. It's an ugly and sad truth. When it comes to people begging for change most people feel that when you give them money they will spend it on booze or drugs. Or that they should be spending their time finding a job and getting back on their feet instead of looking for a handout. Or that people bumming for money are young punks who don’t even need the money. Basically, they assume the worst about you and think they know what is best for you.
My take on why people don't respect the homeless is that they act as a mirror on the fragility of our 'false' sense of respect, the one that equates respect with wealth, or lack thereof. Many of us are a few paycheques away from being in their shoes, especially in this economy, and it is a painful reminder.
As I talked with Jeff I notice that he greeted everyone who walked by with a 'have a nice day.' Nearly every person ignored him, only one person even looked at him, and most people picked up their step just a little faster. He said this is what bothered him the most - people who do not even acknowledge his existence. How can one advance himself in life if they do not have the respect of others, or are given the chance to develop self-respect themselves. Perhaps the reason he greets everyone with 'have a nice day' is his version of extending an olive branch.
I should note that as thanks for allowing me to take his picture I offered a small token of monetary compensation. He refused the money when offered. "When it comes to talking about respect," he said with a glint in his eyes, "it is not about the money."
Wiser words could not have been said.
A newer covered bridge near my house. This is my second attempt to get a good picture of it. Getting the sky a little darker resulted in some graininess, but otherwise, I like the way it turned out. This is (for folks who will get the reference) on the way to Deardorff Road.
The shutter speed was 1 minute & 45 seconds with reciprocity correction. I did an N-1 contraction to tame the highlights a bit.
Camera: Sinar Alpina 4x5.
Lens: 90mm Nikkor with a red filter.
Film: Arista.edu (Foma) 100 developed in Kodak Xtol.
I've been using a reciprocity app for the longer exposures. This was metered at 12 sec. and the app called for 37sec. It has several films and bellows ext. as well as filter factors settings. I've been pleased with it so far. Wish it had the commensurate developing times as well. Still a decent little app.
Shot with the 4x10 on Ilford FP4+ processed in R09 @ 1:50 for 12 min. with a 5 min pre dev. water bath in a Jobo CPP2 @ 68F. If you are interested in what the camera looks like, here is a link:
As if my exposure times were just not long enough, I'm going to start trying filters on my 120 pinhole camera. This is an initial test of the filter holder and a baseline for exposures. Good news is that the filter holder isn't causing a vignette on the image but the bad news is that my exposure times are going to be REAL long. Even more so when I take in the reciprocity failure factor.
Seeing if there are any reflections from the filter.
A spectacular and very innovative event during the festival - a "bottle" built up of layers of clay and bottles - and fired from the inside!
The fire was lit at 13.00 - by 21.00 the temperature had reached 800°C
The next day, the structure was taken down - with fascinating shapes formed by the melting of the glass bottles ....
With special thoughts of Reciprocity, who would have found this fascinating, in view of his fantastic creations using light and glass .... (www.flickr.com/photos/alanjaras/with/7307998414/#photo_73...)
For information about the festival: www.festival-ceramique-anduze.org/
A spectacular and very innovative event during the festival - a "bottle" built up of layers of clay and bottles - and fired from the inside!
The fire was lit at 13.00 - by 21.00 the temperature had reached 800°C
With special thoughts of Reciprocity, who would have found this fascinating, in view of his fantastic creations using light and glass .... (www.flickr.com/photos/alanjaras/with/7307998414/#photo_73...)
For information about the festival: www.festival-ceramique-anduze.org/
Pinhole photograph using a Canon SLR camera. The pinhole was made in a sheet of aluminium from a soft drink can, and mounted in the centre of a hole drilled in the middle of a plastic camera body cap. The pinhole was approximately 0.3-0.4 mm in diameter, the focal length was approximately 45 mm. Accordingly I used an "f number" of 45/0.34, or f128 to calculate exposure.
I had read about reciprocity failure (where film sensitivity reduces during long, low light exposures) and increased the exposure accordingly. Unfortunately I over compensated, and the negatives came out very dark.
I used Ilford HP5 Plus 400 ASA/ISO 35 mm black and white film. This is a scan of the print.
Roughly eqivalent to a 7776 pixel image...
Part of a pair, the optical glas lens equivalent is adjacent in this photostream.