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Art 160, Week 1 Notes

by: Peter Rattin

Art 160, Week 1 Notes ART 160

Peter Rattin

GPA 3.9

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About this Document

These notes cover the basics of cameras and file formats. They also include key terminology of photography and notes on manual controls.
Introduction to Digital Photography
Brian John
Class Notes
Art, Photography
25 ?




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This 3 page Class Notes was uploaded by Peter Rattin on Saturday August 27, 2016. The Class Notes belongs to ART 160 at University of Illinois at Chicago taught by Brian John in Fall 2016. Since its upload, it has received 27 views. For similar materials see Introduction to Digital Photography in Art at University of Illinois at Chicago.


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Date Created: 08/27/16
Thursday, August 25, 2016 Photography Camera Basics (Notes on Lynda Video and Lecture) - All cameras have a light-proof box and they all have lens or pinhole that bends the light - SLR-single lens reflex, what many people considered a professional camera, these cameras, lights bounces off a mirror onto a prism into the viewfinder so you see exactly what is in the lens. • Full frame(larger sensor than the film), and cropped sensor (smaller sensor than the film) cameras are the two types of SLR - Dual lens cameras do not produce the same picture as you see in the view finder because the film is below - Large sensors allow for super small depth of field - Light meter-measures the amount of light and determines how to set you shutter speed, aperture, etc and choose the right exposure to make the photo clear • The light meter is determining from a blurred image of your scene the right exposure that evens out to middle grey. • The left side of light meter shows a whole number for the shutter speed but we can assume it is a 1/x seconds. • The number to the right of that number is aperture • The meter should be in the middle if you want the right exposure - If you want a higher aperture you need a slower shutter speed but if it is too slow you can change the ISO to make the sensor more sensitive - In automatic mode it chooses the settings on its own. - -Wider aperture allows for shallow depth of field, and smaller apertures allow for more depth of field - White balance is telling your camera what the white is you are photographing • Measured in degrees Kelvin • Blue has a higher Kelvin and the yellow has a smaller Kelvin 1 Thursday, August 25, 2016 - Shooting raw means using manual white balance, bad white balance can be a very hard thing to fix • Raw is the closest you can get to the unmodified image you are looking at - Quality settings on the camera should allow you to shoot raw Different ways of Shooting 1. Raw (.DNG-Adobe's preferred camera raw files(should probably use this one)), .CR2 (Canon's raw format), .NEF (Nikon's raw format)-is still. compressed but allows you to change the white balance which is very beneficial 2. JPEG (Lossy Compression-every time you save a file as a JPEG you lose some data from your photo) every time you save a photo in JPEG you will keep losing data. 3. Tiff/PSD/PSB (Lossless Compression) their priority is to preserve all your data while still compressing the image to make it more portable. PSB are similar but for very large files. 4. BMP-(Uncompressed) describes each pixel one by one Bit Depth-12 bit/14 bit is the amount of color information in each pixel, you can sometimes change them in the camera, but not always. Adobe Bridge-is a file manager and has tools for importing photos, a button that says get photos from camera. He has two different folders one for the raw images and one for the edits on those photos, when importing have "open adobe bridge" and convert to .DNG and if you want to save it to multiple places you can "save copies to" also checked. You can open a JPEG in camera raw which is the mode that allows. you to tamper with the white balance but it does not have the same benefits. You want to do. white balance and highlight recovery (whites) should be done in camera raw and not photoshop. In camera raw it will save in a separate text file sit alongside the image. You can save the image into a JPEG straight form camera raw. To create a new digital negative to have a separate file next to the image. Photoshop-go to top right of the window and change the drop down box to photography, going to be adding adjustment layers often on the images. 2 Manual controls.... aperture, shutter speed, iso- the three things that control exposure Aperture- means opening of the lens that controls that amount of light that hits the lens -f/2.8, f/28-the smaller the number the larger the aperture, -the larger the hole the more light comes through -smaller aperture=more depth of field -depth of field, F/22 small aperture allows the background to be more crisp - f/2.8 has a large aperture allows for focus on your subject that close to you and blurs the background -standard numbers: F1.4, F2, F2.8, F4, F5.6, F8, F11, F16, F22, F32, etc... -these are all stops and each stop doubles the amount of lights if there are stops between like F5.6 and F8 if there are 3 numbers it would be 1/3 of a stops. -typically the sharpest image is somewhere in the middle with the aperture -if you're shooting something like on a table then use the lens with less depth of field Shutter Speed: -The longer the shutter is open the more light you let in. -Standard numbers is 1s, 1/2, 1/4, 1/8, 1/15, 1/30, 1/60, 1/125, 1/250, 1/500s, 1/1000 -Rule of thumb make sure that the denominator is larger than the lens size like 18mm lens 1/30 should be fine. -Equivalence-Different combinations of aperture and shutter speed can result in the same exposure -Equivalents 1/15 1/30 1/60 1/125 1/250 Ff22 f16 f11 f8 f5.6 ISO-The sensor's sensitivity to light: its volume knob -Higher ISO= more light= more noise -Rough guidelines for consumer cameras -Print: ISO less than or equal to 200-400 (approximately) he said ignore these they are extremely generic -Digital/web: Iso less than or equal to 800-1600 (approximately) aspect ratio, quality, white balance Histogram is an accurate measurement of light White Balance: The camera needs to know what color the light is to balance out the colors -Lower number mean warmer or negative colors Aspect Ratio-the camera shoots 3:2


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