One of the most important aspects of human culture is visualisation of emotions, thoughts, ideas, memories and fantasies. Once people realised that dirty hand makes an imprint on the cave wall – art started to be a thing. Much later man realised that whatever is written on the wall might actually influence someone, tell the story or simply point the right way.
Any other way pictures were made in various forms to tell people stories without need of being able to read.
In 21 century, people figured all effective ways to create images and pictures. Let’s discuss the most common ones.
Or any physical interaction with surroundings that leaves a mark starting with painting your name on a park bench with sharpie (not a sponsor) or drawing doodles on a wallpaper of your parents bedroom with crayons to neatly applying layer by later with great dedication a very expensive oil paint to a cotton canvas. Well you got the idea.. Ancient and time consuming thing. Let’s talk about something more interesting.
Photography technically is also a physical interaction but I think of it as a different category because It takes much less effort and knowledge to make a picture and you can literally capture the moment.
Film photography has been around for over 150 years. Greatest minds achieved a chemical process that allows you to create pictures in mere seconds (excluding time of development and printing) It is so successful and the process is so enjoyable that even nowadays in the E era a lot of people use film for selfies. I bet film photography is still going to alive for a while, at least as a fetish.
The technology of Film Photography is that light is captured by a photosensitive film with help of simple mechanism. To make a film picture all you need is unexposed film and a match box (it is actual thing, look up “Obscure Camera” or “Pinhole camera”). But to get more control advanced film cameras have shutter mechanism that allows operator to control for how long film can be exposed. Another addition to the camera mechanism is a lens system which allows user to adjust field of view with different focal length, change amount of light with aperture and change focus distance. All these controls are allowing user to capture images in a variety of cases. On top of this with invention of movie camera and projector whole new world of cinematography has began. Movie cameras were using same basic principals of photography to capture images.
But here are some disadvantages of an entire technology. First and foremost – you are completely reliable on film, it is impossible to review image straight after picture is taken, and there is a need to develop a film (which is already a complex process) and after film is developed it is impossible manipulate image, altho you wold be able to make some changes during developing process, unless you scan and digitalise the film. All the development process is extremely time consuming. But this newer stoped people to film and take picture, we were doing it for decades, we stopped using film cameras in feature film making only around 2010.
Practically process of digital photography is very similar to film photography, with all advantages of dynamic lens system and bringing even more flexibility with digital sensor that is used now instead of photosensitive film. Digital sensors in photo cameras started appearing in late 1970s – early 1980s and started going popularity in 1990s. It brought flexibility to all photographer and filmmakers all together, whole process became cheaper (no need t o buy expensive film and pay for development) and faster, photographers and filmmakers are able to review their shots on the go. Post process became much more accessible, digital is a data that you can modify almost instantly.
There are still thing to improve at this point, it is still capturing of a real world and you cannot control 100% of image production.
This brigs us to CGI which stands for “Computer-generated Imagery”. At this time technology advanced to the level when you can create literally everything you can imagine on a computer. With 3d and 2d software we can do things no photographer or filmmaker is able to achieve. Digital artists are able to draw faster and make more iterations, animate, explode, edit, compose, design, test and create all sorts of thing depending only on imagination skills and computing power.
If you are willing to improve or learn some aspects of CG world in more details please stay tuned.