Lenses. Lenses define 2 important things: Angle of view (focal length) Aperture.

Slides:

Advertisements

Similar presentations

Types of Camera Lenses Types Of Lenses Zoom Wide Angle Zoom Normal Zoom Telephoto Zoom Single Focal Length Wide Angle Normal Zoom Special Purpose Micro.

Advertisements

Aperture, Exposure and Depth of Field

Selecting the right lens. They come in wide angle, telephoto and zoom. They offer a variety of apertures and handy features. They are also the key to.

Lens  The lens is the most important part of the camera  Lens captures light and focuses the light on the part of the camera that receives the image.

In all cameras, light enters through the lens and hits the recording medium. (In film cameras, the film plane, in digital cameras (for our purposes),

Depth of Field. What the what?? Is Depth of Field.

Nahum D. Solomon Pr. Tim Johnson November 30, 2009 Wentworth Institute of Technology.

Properties of Lenses Dr. Kenneth Hoffman. Focal Length The distance from the optical center of a lens to the film plane (imaging chip) when the lens is.

UFCEKT-20-33D Modelling and Animation 3D Modelling & Animation Cameras.

DIGITAL PHOTOGRAPHY: BACK TO BASICS Source:

Journey Through a Camera

Evaluate. Review: Light Volume Control: 1. f stops are light transmission standards: f 8 transmits the same amount of light for any lens. 2.Lenses can.

Photography Basics. The Process The Exposure - Camera and Lens Developing - Dark Room or PS… Printing – Darkroom or InkJet.

Teacher: Kenji Tachibana Digital Photography I. Art 115 – DOF 8 Slides Copyright © 2003 – 2009 Kenji Tachibana.

Chapter 4: Cameras and Photography Depth of Field –Circle of Confusion –Effect of aperture Apertures –F-stop –Area –Depth of field Exposure –Shutter speed.

   This is the most important skill of all! Master this, and you're well on your way to becoming an expert photographer. Your job as a photographer.

Digital Single-Lens Reflex Camera Peter Hsieh Writing 2E.

LIGHT, LENSES, AND OPTICS. What is colour? A sensation caused by light in our eyes.

Joel Willis. Photography = Capturing Light Best Light Sources and Directions Basics: Aperture, Shutter Speed, ISO, Focal Length, White Balance Intro to.

How does a camera work? Ksenia Bykova. Types of film cameras  SLR cameras (Single Lens Reflex)  SLR cameras (Single Lens Reflex) – you see the actual.

Extreme Macro Photography Greater than 1:1 by Meyer Franklin.

Camera Lenses There are many types of camera lenses available for SLR cameras. What lens you decide to use depends on what is available to, what you are.

Lenses By: Amit Chawla.

Camera Lenses, Shots & Angles Unit 1 A Photographic Introduction.

Lenses Why so many lenses and which one is right for me?

DIGITAL ZOOM. STEP ONE: Turn off the digital zoom feature. STEP TWO: Don’t ever turn it on again. Works by, cropping the image and then scaling that cropped.

Cinematography The manipulations of the film strip by the camera in the shooting phase and by the laboratory in the developing phase. What is involved?

Lenses Are classified by their Focal Length. The distance from the optical center of a lens to the front surface of the imaging device.

Photography Lesson 2 Pinhole Camera Lenses. The Pinhole Camera.

Lenses. 3 camera obscura / pinhole camera 3 Focal length is the distance between the lens and the point where the light rays converge. It controls.

Introduction to Film Studies: Forms course website: l A page containing all Film Studies course descriptions and full syllabi will be linked to the following.

Macro and Close-up Photography Digital Photography DeCal 2010 Nathan Yan Kellen Freeman Some slides adapted from Zexi Eric Yan Photo by Daniel Schwen.

DEPTH OF FIELD IN PHOTOGRAPHY POSTED BY FREDRIK SILVERGLIMTH IN PHOTOGRAPHY TUTORIALSFREDRIK SILVERGLIMTH IN PHOTOGRAPHY TUTORIALS.

Lenses and Perspective. Reading a Lens Maximum F or T # Focal Length: power to bend light from subject Distance scale Focus Index DOF Scale Hyperfocal.

1. Is 90mm a wide angle lens or a telephoto lens? 2. If I’m taking a picture of a building, why would my perspective change if I switch from a wide angle.

Basic Photography. The 6 Things To Know Know your camera Hold the camera still Take a few more than you need Take photos from different angles Tell a.

1. Is 90mm a wide angle lens or a telephoto lens? 2. If I’m taking a picture of a building, why would my perspective change if I switch from a wide angle.

Film/Sensor Where the light is recorded Lens Bends the light Trajectory of light Subject Source of light Focusing A look at the overall camera system.

LENSES The specs: focal length maximum aperture “long lenses, short lenses fast lenses, slow lenses” Fixed focal length (prime) or zoom.

1. You’re in a dark room taking pictures with flash. When you change your aperture and ISO sensitivity, the exposure changes. However, no matter what you.

Math in Photography © UNT in partnership with TEA

Unit 57 – Photography Lenses. Lenses of different focal lengths allow photographers to have more creative control 1.Standard lens 2.Wide-angle lens 3.Telephoto.

TYPES OF LENS/LENSES. What is a Lens? Lens or Lenses are used in conjunction with a camera body and mechanism(tool) to make images of objects either on.

Lenses Contain both convex and concave lenses. Lenses Many concave and convex lenses, called elements are grouped together to produce a specific magnification.

Commercial Photography

Lenses Lenses define 2 important things: Angle of view (focal length) Aperture.

The Camera Lens Digital Photography. Lens Image quality is greatly affected by the quality of the lens. Lens types: fixed lenses (prime lenses) which.

Understand your camera  Make, lens mount  Size of digital image sensor (full frame 35mm vs. most DSLRs about 30% smaller)

Camera LENSES, APERTURE AND DEPTH OF FIELD. Camera Lenses Wide angle lenses distort the image so that extreme wide angle can look like its convex such.

selects and directs the light rays entering the camera brings light from the subjects into focus on the film.

Lenses. Lenses define 2 important things: Angle of view (focal length) Aperture.

Chapter 2: The Lens. Focal Length is the distance between the center of a lens and the film plane when focused at infinity.

There are four main functions of the lens…. The first and most obvious is…

Lenses Lenses define 2 important things: Angle of view (focal length) Aperture.

BASICS of the Camera A brief look at the origins and key features of the modern camera.

Evaluate. Review: Light Volume Control: 1. f stops are light transmission standards: f 8 transmits the same amount of light for any lens. 2.Lenses can.

Lenses. 3 camera obscura / pinhole camera 3 Focal length is the distance between the lens and the point where the light rays converge. It controls.

CJ Crime Scene Photography Unit 3 Jonathan Dorriety Adjunct Professor School of Criminal Justice Kaplan University.

Lenses and Perspective

Media Production Richard Trombly Contact :

Aperture, Exposure and Depth of Field

Lenses Are classified by their Focal Length.

Exploring Lenses Photojournalism.

Aperture & Depth of Field

5 Tips for Better Portraits

Depth Of Field.

Digital Camera Terms and Functions

Unit 57 – Photography Depth of field

Aperture, Exposure and Depth of Field

Presentation transcript:

Lenses

Lenses define 2 important things: Angle of view (focal length) Aperture

Angle of view Camera sees a “cone” of vision, measured by the angle of the cone Narrow angles of view see very little, but the subject is big Wide angles of view see a lot, but the subject is small Wide angleNarrow angle

Film/Sensor Where the light is recorded Lens Bends the light Trajectory of light Subject Source of light Focusing A look at the overall camera system

Light converges at sensor Light converges past sensor Light converges before sensor Result: ‘In focus’‘Out of focus’

Translating focal length into angle of view Focal lengthAngle of view (degrees) 12mm121.97° 16mm107.03° 24mm84.06° 28mm75.38° 35mm63.44° 50mm46.79° 85mm28.56° 135mm18.21° 200mm12.35° 300mm8.25° 400mm6.19° 600mm4.13° For 35mm film sensor (diagonal: ~43mm) Focal lengthAngle of view (degrees) 12mm100.48° 16mm84.06° 24mm62.01° 28mm54.50° 35mm44.79° 50mm32.18° 85mm19.26° 135mm12.20° 200mm8.25° 300mm5.50° 400mm4.13° 600mm2.75° For 1.5x APS-C sensor (diagonal: ~29mm)

Translating focal length into angle of view Focal lengthAngle of view - APS-C sensorAngle of view - 5x4 Large format 90mm18.21°84.20° Lenses are always specified by focal length Photographers are concerned with angle of view (Depends on focal length and sensor size) Is 90mm a narrow angle lens, or a wide-angle lens? Problem: We want to talk in angles of view, but are given focal lengths Solution: We convert focal lengths to “35mm equivalent”

Translating focal length into angle of view Angle of viewFocal length - 35mmFocal length - 1.5x APS-CFocal length - 1.6x APS-C °12mm8mm7.5mm °16mm11mm10mm 84.06°24mm16mm15mm 75.38°28mm19mm18mm 63.44°35mm23mm22mm 46.79°50mm33mm32mm 28.56°85mm57mm53mm 18.21°135mm90mm84mm 12.35°200mm133mm125mm 8.25°300mm200mm188mm 6.19°400mm266mm250mm 4.13°600mm400mm375mm Actual focal length35mm equivalent focal length

Translating focal length into angle of view Angle of viewFocal length - 35mmFocal length - 1.5x APS-C mm10mm mm18mm mm28mm mm50mm mm85mm mm135mm mm200mm mm300mm mm400mm Actual focal length35mm equivalent focal length To get the “35mm equivalent” focal length, multiply your actual focal length by the camera’s crop factor When we talk about focal lengths, we’ll assume they are “35mm equivalent”

Focal length ranges Two types of lenses: Zooms (variable focal length) and Primes (fixed focal length) Different focal lengths are useful for different things Standard range Covers most commonly used focal lengths, 28mm/wider, 70mm/longer General purpose photography Standard “kit” lens is a standard range zoom 38mm

Focal length ranges Two types of lenses: Zooms (variable focal length) and Primes (fixed focal length) Different focal lengths are useful for different things Telephoto Gives a very narrow angle, 70mm and beyond Large magnification for faraway subjects Commonly used for sports, wildlife 320mm

Focal length ranges Two types of lenses: Zooms (variable focal length) and Primes (fixed focal length) Different focal lengths are useful for different things Ultrawide Gives a very wide angle, 24mm or wider Can cover extremely large objects in confined spaces Commonly used for landscapes, architecture, journalism 19mm

Tools for the job What focal length would you use for a huge building? What focal length for shooting sports from the sidelines? Covering a protest? Taking a portrait? 24mm 110mm

Tools for the job What focal length would you use for a huge building? What focal length for shooting sports from the sidelines? Covering a protest? Taking a portrait? 310mm70mm

24mm39mm 70mm Tools for the job Angle of view goes hand-in-hand with subject distance Subject distance defines perspective. Perspective affects: -Distortion -Context