The document provides a timeline and overview of key technologies in the history of photojournalism from 1842 to 2010. It describes technologies such as woodblock printing, wet plate collodion process, photogravure, Leica 35mm camera, SLR 35mm camera, DSLR cameras, drones, and blogs. For each technology, it provides a description, image, discussion of changes from previous technologies, and impact on photojournalism. The timeline shows how technologies evolved from early interpretive illustration techniques to modern digital photography and new perspectives using drones.

1. Technology Timeline
History of Photojournalism
By : Jason Wegiel

2. Technology Timeline - Description
1842 Woodblock Printing
1851 Wet Plate
Collodion
1877 Photogravure
1913 Leica 35mm
Camera
Woodblock Printing
Woodblock printing was
important to photojournalism in
1842, artist would draw a
sketch, get a piece of wood and
do a wood cut. Cutting out the
shapes and lines, the finished
block was pressed into soft clay
and a cast was made by pouring
molten tight metal on the fresh
impression.This cast could be
put onto a magazine press and
print thousands of copies.
Wet Plate Collodion
Process
Invented by Frederick Scott
Archer, in the wet plate collodion
process the photographer would
coat the glass with collodion, go
to a dark room and dip it in silver
nitrate, insert the plate into a light
proof holder, expose the plate to
light for 20 seconds to 5 minutes,
pour iron sulfate and acetic acid
onto the plate, remove unexposed
silver-halide by placing the tray
in sodium thiosulfate, washing
the plate one last time, removing
the fixing agent, float the paper
on egg whites and chloride, dry
and place in silver nitrate, dry
again and the sun will print the
picture.
Using the photogravure, first
the artist prepares the printing
plate making sure that pure
copper plate is clean and
sprays an acid resist of
rosin.After, the artist has to
heat to make the acid resist
attaches. While this process
occurs, the image as well must
be prepared. A positive
transparency is made from a
negative.Then it is contact
printed under UV light to a
gelatin-coated paper.The
image is attached to the
copper plate, soaking in hot
water to soften the gelatin and
separating the paper base of
the tissue.Etching begins in
sequence in ratio to thickness
of the gelatin coating and the
viscosity of Ferric
Chloride.After it dries, the
gravure is printed on an
etching press.
The Leica 35mm camera was
developed by Oskar Barnack.
The idea behind the camera
was reducing the format of
negatives and enlarging
photos. The camera was
compact and fitted with a high
quality lens allowing
photographers to work in
settings with light. Barnack
turned to a new type of
compact known as rotated
film format. By rotating the
film inside the camera, it
doubled the area making the
24x36mm format. Max Berek
developed the first Elmax
50mm f/3.5 lens as the
optimal focal length for the
24x36mm format .This lens is
still the lns used for Leica
cameras today.

3. Technology Timeline - Description
2010 Drones2000 DSLRS1994 Blogs1950 SLR 35mm Camera
DSLRS cameras combines optics
and the mechanisms of a single-
lens reflex camera with a digital
imaging sensor. In the reflex
design portion, light travels to the
lens then to the mirror that
alternates to send an image to
either viewfinder or the image
sensor. The use of only one lens
presents an image that will not
perceptibly differ from what is
captured on the camera's sensor.
Although used in the
1970s, Drones haven’t
become as important to
photojournalism until
recently in the 2000’s.
Drones are capable of
taking an aerial view of up
to 65,000 feet in the air.
The drone is capable of
carrying a camera in the
air and allowing the pilot of
the drone to capture views
that are almost physically
impossible. Drones have
been an asset to
photojournalist because of
the ability to give a
different perspective of the
photo.
Although developed earlier in
time,the single-lens reflex (SLR)
35mm camera really made a
difference in photojournalism
during the 1950’s. This camera
uses the mirror and prism system
that allows photographers to
view through the lens to see
what is exactly being captured.
When pressing the shutter button
on an SLR camera, the mirror
flips out of light path, allowing
light to pass through to the light
receptor, ultimately allowing the
image to be captured.
Blogs could be said to have
been created by a
Swarthmore College student
named Justin Hall in 1994.
Many blog about different
things such as traditional
news, media, hobbies, or
entertainment. As of 1999,
Jesse James Garrett had
made a list of only 23 blogs
throughout the web. By 2006,
the Technorati’s State of
Blogosphere reported 50
million throughout the
internet. Blogs are a form of
expression for the
photojournalist to voice their
opinion on a certain topic or
to get their work out there.
The viewers are the audience
in which can relate to the
topic being expressed.

4. Technology Timeline - Images
1842 Woodblock Printing
1851 Wet Plate
Collodion Process
1877 Photogravure
1913 Leica 35mm
Camera
Wood Block Printing
Image By : Unknown
Image Source :
http://www.iln.org.uk/iln_years/ye
ar/1842.htm
Wet Plate Collodion Process
Image by : Stephen Berkman
Image Source :
https://www.bhphotovideo.com/
explora/content/alternative-
processes-wet-plate-collodion-
stephen-berkman
Photogravure
Image by : Joseph Lister
Image Source :
http://www.gettyimages.fi/det
ail/news-photo/photogravure-
by-walker-boutall-after-a-
photograph-by-news-
photo/90773100#photogravur
e-by-walker-boutall-after-a-
photograph-by-barrauds-ltd-
picture-id90773100
Leica 35mm Camera
Image by : Oskar Barnack
Image source : http://leica-
oskar-barnack-
preis.de/en/information/oskar-
barnack.html

5. Technology Timeline - Images
2010 Drone2000 DSLRS Camera1994 Blogs
1950 SLR 35mm
Camera
DSLRS camera
Image by : Irina Oreshina
Image Source
:http://www.picturecorrect.co
m/tips/10-things-you-should-
know-about-your-new-dslr-
camera/
Drone
Image by :Jampal
Williamson
Image Source
:http://thecreatorsproject.vi
ce.com/blog/drone-
photographers-capture-
australias-natural-beauty
The single-lens reflex
(SLR) 35mm camera
Image by : Voula
Papaioannou
Image Source :
https://www.pinterest.com/p
in/319474167291125201/
Blogs
Image by: Getty images
Corbis
Image Source
:http://www.politico.com/
magazine/story/2015/10/1
994-year-changed-
everything-hillary-jeb-
mtv-ojsimpson-213297

6. Technology Timeline - Changes
1842 Woodblock Printing
1851 Wet Plate Collodion
Process
1877 Photogravure
1913 Leica 35mm
Camera
Although the beginning of this
timeline, woodblock printing saw
a change in techniques and was
the building block of illustration
printing. The sketch would go to a
magazine press and later on be
printed. This would be the
foundation for many
photojournalist who were looking
to publish their work.
The change between woodblock
printing and the wet plate
collodion process is unique. The
wet plate collodion process
allows you to print an actual
picture oppose to someone
interpreting what they see.
Although very dangerous with all
the chemicals, the picture will
come out clearly on the plate.
Between the wet plate collodion
process and the photogravure, the
changes between these two are
minimal but indeed a change is
there. The use of chemicals in
getting a clear picture is still
being taken place between these
two. However, the photogravure
is able to printed on a etching
press allowing for a high quantity
of photos.
The change between
photogravure and a Leica
35mm camera is very
distinguished. There is no
longer a use of chemicals to
capture a photo. The Leica
camera was designed so that it
was able to be taken in the
light where the wet plate
collodion was meant to be in a
dark room before being ready.

7. Technology Timeline - Changes
2010 Drones2000 DSLRS Camera1994 Blogs
1950 SLR 35mm
Camera
SLR 35mm camera was the
building block for the DSLRS
camera. The DSLRS is a
combination of the SLR
camera with its optics and
mechanisms. What really
changed between these two is
the way the light travels to the
mirror allowing the
photographer to alternate the
photo to viewfinder or the
image sensor.
Drones being the most
recent change in
technology has had one of
the biggest changes in
photojournalism. This
change allows for a
different perspective and
an aerial view. It allows the
pilot or photographer to
carry a camera which is
important in this timeline
because without the
advancements of
technology, the capability
to do this would be
impossible.
The change between the
Leica 35mm camera and the
SLR 35mm camera is the
process of the mirror and
prism system. The Leica
camera had helped the
progression of the SLR
camera because of the
readiness and the use of
light. The advancement of
the Leica 35m camera
helped prepare the the SLR
35mm into what it was.
Because of the SLR
35mm camera, bloggers
were able to capture
photos and post it
throughout the internet to
their audience. This new
wave of blogging helped
photographers and
photojournalist get their
work to a larger crowd
which was harder to do
before.

8. Technology Timeline - Impact
1842 Woodblock Printing
1851 Wet Plate
Collodion
1877 Photogravure
1913 Leica 35mm
Camera
Woodblock printing had
affected photojournalist and
photojournalism because it was
the beginning of an artist to
interpret their work and publish
it into a magazine. This
technological advancement
created more work in magazines
and presses. But it also allowed
for more freedom in the photo
of the artist. It was a skill in the
artist to cut the wood and create
lines and shapes within. But
most importantly, this was the
beginning of having illustrations
in magazine.
The wet plate collodion process
had impacted photojournalism
because it created clearer
pictures. This process was more
dangerous with all the chemicals
being added to the plate but it
was rewarding at this time
because the product was
unbelievable to
photojournalist.Photojournalist
were able to capture photos
without having to interpret
them. The photo had to be in a
dark room before being exposed
to light. Photojournalism had
really been impacted by this
process because it allowed for
work to be done in the outside
world.
The photogravure had
impacted photojournalism
because it was a better and
improved version of the wet
plate collodion process and
woodblock printing. Although
chemicals were still used in
photogravure, it was fewer
than the wet plate collodion
process. This technological
advancement was similar to
woodblock printing because it
was a version of printing. This
advancement allowed for
clearer images and with the
printing process, this
advancement allowed for
photojournalist to get their
work a better version of itself
to the public.
The Leica 35mm camera was
the next big step in
photojournalism. Images had
getting clearer but this Leica
35mm camera was special
because of its accessibility. It
allowed for larger photos and
the ability to take photos in
light.This advanced
photojournalism because it
allowed for the camera could
be brought anywhere and
could capture that special
moment the photojournalist
was looking for.

9. Technology Timeline - Impact
2010 Drones2000 DSLRS Camera1994 Blogs
1950 SLR 35mm
Camera
DSLRS Cameras are thankful
of the SLR camera because it
was a progression of the
camera. This camera had an
impact on photojournalism
because it allowed
photojournalist to be on the
move and capture photos
anywhere. What you see
through the lens is the photo
you will be capturing.
Photojournalist will be
grateful for this camera
because you are in control of
what you view through the
lens.
Drones made a unique
advancement in
photojournalism because it
is a different perspective of
something that is
sometimes almost
humanly impossible to
capture. The use of drones
are beneficial to all sorts of
photojournalist, ranging all
the way up to war
photographers. These
photographers are capable
of going to areas that are
too dangerous to go on
foot and let their work
speak for themselves.
Journalism is a news
source and the photo
helps it speak clearly
without words.
The single-lens reflex
(SLR) 35mm camera had
impacted photojournalism
because it was a better
version of the Leica camera.
It created a mirror and
prism system for
photographers. But for
photojournalism, this was
an advancement because the
quality of photos keep
getting better. This allows
for the photojournalist to
publish their work but also
to create the best image it
could be. This camera was
the best of its time allowing
photojournalism to be
sought out anywhere.
Blogs were the start of
something big in
photojournalism.
Photography is important
because in
photojournalism your
news work is
corresponded to a photo.
Blogs really brought in a
larger audience becauses
the work shown by the
photojournalist would
interest a certain group.
That’s why blogs were so
relatable to people and
progressed as well as it
did.

10. Works Cited
1. https://www.youtube.com/watch?v=QZ4JfnPkgcA
2. https://www.youtube.com/watch?v=Gyf8fQOdvDs
3. http://www.pbs.org/wgbh/amex/eastman/sfeature/wetplate_step1.h
tml
4. http://www.photogravure.com/process/process.html
5. http://www.overgaard.dk/leica_history.html
6. https://www.youtube.com/watch?v=5OkSuw1rVh4
7. http://www.webdesignerdepot.com/2011/03/a-brief-history-of-
blogging/
8. https://www.youtube.com/watch?v=OD_zltSFGD0
Sources used throughout the slides.