Traditional - PowerPoint Presentation

Slide1

Traditional Photography

Unit 15Slide2

Film

Coated with a gelatin emulsion that has extremely small microscopic silver halide crystals

The sizes of these crystals actually determine the contrast, resolution and how sensitive the film is.

The modern colour film consist of around 12 different layersSlide3

Medium Format/35mm

Basically it is a type of film gauge commonly for motion pictures and chemical still photography

35mm

referes

to the width of the film even though the width isn’t exactly 35mm they can be between 34.95 and 35.01Slide4

Taking the photo

Contains a

gelatin

emulsion with Silver Nitrate as one of the chemical in it.When light hits the silver nitrate it makes it into metallic silver (otherwise known as a latent image)So when you take the photo the light will bounce of the target into the camera and the image the light produces will be captured on the filmDepending on how much light hit parts of the image will be lighter or darkerSlide5

Processing Film

T

he

lights have to be out as total darkness as exposure to light will effect how the picture will look are dark room like you see in old shows Wind the film onto a reel and put it in a developing tankTo clean the film water or a non-ionic wetting agent to rinse and left to dry after that Slide6

Developing

Developer is added:

A liquid that grows the silver in the image until they are visible

Agitate for 2 – 6 minsAdd stop bath (generally acetic acid or citric acid )Add Fixer:This removes unused chemicals from the film (the silver halides)Wash and dry the film (more detail on previous page)Slide7

Negatives

Negatives is what the photo is referred to once it has been processed as the lightest area appear darker in the photo Slide8

Positive

The photo appears close to what the original scene.

Can be

colour or black and white. E.g the top left image on the rightSlide9

Negatives use

We can use them to make printed photos

This is done by projecting the negative onto a photographic paper with a photographic enlarger Slide10

Making Prints

The process is incredibly similar processing film

We

use paper with silver compounds in (just like film)Enlarging the photo is the first step in the process using either the contact process or DevelopStopFix Wash, Dry and Finish – in old shows like some older Simpsons episode or even in Chucky they hang the photo up at the top of the room as warm air rises it will dry it quicker Slide11

Enlarging

By placing the negative

in

an photographic enlarger and projecting it onto a piece of photographic material such as glass or filmfor a fixed time (10s – 2 min) depends on the power of the enlarging agent.Slide12

Adjustments

Similar to how you can burn and dodge images on

P

hotoshop this is based of the actually adjustments that can be made on real photos plus the additional adjustment of the contrast which is saturation Burning Giving bits of the image more light – makes them darkerDodging Shading bits of the image – makes them lighterContrast Different types of paper and developer allow contrast to be changedSlide13

Processing

Agitate the paper in developer, till image appears

Move to stop bath tray

Agitate in Fixer trayWash and FinishSlide14

Finishing

When

finished

with the developing there one last step which is to add effects to it such as pressing on a glossy coating or textured surface to make it look nicer or cropping to get rid of parts of the pho that aren’t needed and take away from the focus. Another finish that can be used is mounting itSlide15

Colour

Much the same but takes place in total

darkness as the colours are more affected on the outside light then black and white

. Enlarging is complicated because corrections are made by changing the enlarger’s light colour meaning it is a lot more pricier as you can’t just use one light for a lot of