Wednesday, 14 March 2012

STEVE. Experimental Photography. Lesson 1.

In this lesson we Built a Camera Obscura from/in the classroom(1). We then made the image clearer/more contained by using a piece of material(2) and then a bin liner(3). After this we built our own mini portable Camera Obscura out of cardboard and bin liner and put a lens inside the box, pointed it towards the light and it produced an image on the bin liner.(4)
1)
2)
3)
4)

TIM. Location Photography techniques. Lesson 1.

In this lesson we learnt how to use a camera on location with an external flashgun.
when the flash gun is attached it means the settings our automatically chosen and without the flashgun attached to the camera we had to choose and change the settings and the powerfulness of the flash by hand and eye. Moving the flashgun to the side makes the image "Strobeish"
-The Hot Shoe Dairies.

Group Shots we took;




Pictures I took:

using a flash gun was a complete new experience for me and I loved the effect it gave the image. We produced some really edgy looking photos and I'm sure with about of a mood adjustment to the set, using a flash gun could create some real depth into the shoot you do.

Wednesday, 7 March 2012

Tom. Lesson 1. Landscape Photography,

In this lesson we covered why you have to use a tripod for Landscape photography which is because landscapes do not move so you can use a really slow shutter speed and low ISO to get the best quality image possible with the most depth to it, the tripod makes sure the camera does not shake or cause blurring to the images when the shutter speed is so slow.

We also covered multiple exposures too where you take three pictures of the same location with three different exposures in order to get the best contrasts and colours from the one final image which you get by blending all the best parts of the images together in photoshop.

We learnt that when taking landscape photographs you have to make the composition interesting or the photo would just flop/be useless. We had to refresh our memories about the rule of thirds using this skill to create the best compositions we could, we had to choose the focal point in the image and make sure to give the image depth.

We also learnt about 'metering modes' which are 'spot' and 'evaluated'(all over) spot is light exposed for if its a bright day with lots of contrast and evaluated is used for cloudy days/flat days. We learnt about Histograms and how to read them and about bracketing for multiple exposures.

look at photographers: Dan Holdsworth and Lee Frost.

Friday, 2 March 2012

MARIA.Task 1. Zine assignment.

roundabout;




I found this effect as the I took the pictures when on a roundabout, the background is all blurry and colorfully blended due to the movement but the subject stays clear and in focus because I'm also on the roundabout with them.

motion blur:

Motion blur is when something is moving and you have your camera on a slower shutter speed, capturing the movement.

wide depth of field:


Narrow depth of field is when the whole picture is sharpy in focus.

narrow depth of field:



Narrow depth of field is when only one point in the image is in focus and the rest is out of focus or softly focused.


fast shutter speed:

Fast shutter speeds allow you to freeze people/movements.

slow shutter speed:


Slow shutter speeds allow you to capture movements as its happening, creating a blur and the effect of the subject going really fast.

Thursday, 1 March 2012

STEVE. Task 6. History of art and photography assignment.

Ancient times: 'The camera obscura was one of the first inventions that led to photography. It was a darkened room that had one "pin hole" of light coming into it that projected an image of the surroundings outside the room onto the wall opposite- of course the image projected was upside down but by using mirrors they were able to turn the image shown right side up. The image was then projected onto paper and traced by artists so they could create an accurate representation.


16/17 th Century: The camera obsura's quality and brigh
tness were improved by enlarging the hole and inserting a simple lens. John Dolland developed the achromatic telescope lens in 1758 which again improved the camera obsura because this lens corrected the distortion of the image, the image would be more likely to be in focus now and better coloured;

by the middle of the 17th century the portable camera obsura had being produced and was used by artists frequently. In 1727 Professor J Schulze accidentally came across the first photo sensitive compound by mixing chalk, nitric acid and silver in a flask.

1790-1795: Thomas Wedgwood makes "Sun prints" by using light and heat to change the chemical substances on a chosen material(leather,glass etc) impregnated with silver nitrate. unfortunately the images were only temporary and deteriorated quickly unless viewed under candle light. He was unsuccessful at producing permanent image as he couldn't fix the images he made.


1816: Joseph Nicephore Niepce
and his brother experimented with photosensitive paper and the camera obsura, in 1826 Niepce creates the first ever permanent image (Heliograph) using pewter plates in the camera obsura, taking 8 hours to expose. (see task 1 for more detail.)
oldest photograph documented.

1834: Henry Fox Talbot experiments using paper soaked in silver chloride and fixed with salt solution to create the first ever permanent negative of an image. (see task 1 for more detail.)
1835: Talbot takes the photo of his library window creating the first negative image, he then created positive images by contact printing onto another piece of paper. (see task 1 for more detail.)

1837: Louis Daguerre created images on silver-plated copper coated with silver iodide and developed with warmed mercury which produced a one single positive image. This prints took under 30 minutes to develop and to finished "daguerreotype" has to be framed behind glass with the edges sealed to stop oxidation of the silver. Every image made by this process was an original and only one copy could be made this is the main reason this process was not used after 20 years of it's invention because Talbot invented a process which meant they could be more then one copy of an image.

1840: suggestions were made in attempt to improve Talbots process; Sir John Herschel suggeted that he fixed his images in sodium thiosulhate, another suggested he used silver iodide and developed them in gallic acid Talbots use of paper negatives made sure they were not classed as "Daguerreotypes"

1841: Talbot sells his process under the name "calotype" with 5 minutes exposure which become the worlds first multi-copy photo process. In the same year Joesph Petzval mathematically calculated compound lens of f/3.6 reducing daguerreotype exposure time to 1 minute.

1851: Fredrick Scott Archer a London based Sculptor improves photographic resolution by spreading a mixture of collodion and chemicals on sheets of glass. Wet plate collodion photography was much cheaper than daguerreotypes, the negative/postive porcress permitted unlimited reproductions. This process was not sold but it was published.

1861: Thomas Sutton developed and sold "single lens reflex plate camera" in the same year he developed the panoramic camera "The Shutton", Oliver Wendall Holmes invented "Stereoscopic"/3D imaging.
-One type of 3D imaging glasses, used by the military to see aerial photographs.
- Another type of 3D imaging (card) for viewing of scenes from nature.

Also in 1861 James Clerk-Maxwell tested the three colour theory of light, this experiment showed that by taking three black and white photographs one taken with a red filter, one with a blue filter and one with a green filter and then put together into one image then what is produced is one reasonably fully coloured image. It was named the "colour separation method" and it was the first to produced coloured photograph.
- The first permanent color photograph (by James Clerk-Maxwell)

1865- copy write was introduced.

1871- Richard Leach Maddox, a doctor suggested the use od an emulsion of gelatin and silver bromide on a glass plate "the dry plate silver bromide process" this meant that negatives did not need to be developed straight away. Exposure time of 1/25th of a second was now possible.


1878- Edward Muybridge a.k.a Muggridge made a high speed photographic demonstration to prove if all a horse's hooves leave the ground when they gallop using a trip-wire system- hit was fond that all the horses hooves do lave the ground. He then went no to crates a huge collection of photographs f different animals in motion.


1888: The USA made the first Kodak number 1 camera- the first simplified camera system for everyone it used a 20 foot roll of paper, the next year (1889) Kodak improved this by using film instead of paper.

1890: Two British scientists (Hurter and Drifffield) invented the first independent speed rating for emulsions "H & D numbers" which led to be the current ISO numbers on film boxes the current day and age.

1891: Gabriel Lippman succeeds in producing a coloured image directly in the camera from one exposure using the principle of light interference by newton. It required long exposures and the results could not be copied.

1895- Auguste and Louis Lumiere demonstrate a cinema projector capable of showing 16 frames a second; inventing the cinematographe. This cinematograph was also used as a film camera and developer.






http://www.dptips-central.com/history-of-photography.html