Photographing Your Sewing Your...آ  your camera? Higher ISO creates more noise in your photo Aperture

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  • Photographing Your Sewing Project

    Kent Messamore

    47 St. Andrews Drive

    Bedford, NH 03110

    k.messamore@comcast.net

    KMessamore.com Enhanced-Images.biz KR-Training.biz

    2/16/2013

    KMessamore.com Enhanced-Images.biz Enhanced-Images.biz Enhanced-Images.biz KR-Training.biz KR-Training.biz KR-Training.biz

  • What we will cover today

     Exposure  ISO

     Aperture

     Shutter Speed

     Flash

     Examples  Background

     Reflective Subjects

     Camera Operation  Auto

     Program

     Scene Modes

     Aperture Priority

     Shutter Priority

     Manual

     Exposure Compensation

     Metadata

     Depth of Field

     Camera Shake & Tripods

     Examples

     Tripod Auto Flash vs Manual

     Don’t Forget Detail

    JKM 2/16/2013 Enhanced Images 2

  • Types of Cameras

     Cell Phone

     Compact (Point & Shoot)

     Midrange

    (Bridge)

     Single Lens Reflex (SLR)

    JKM 2/16/2013 3 Enhanced Images

  • Exposure

    The amount of light that hits the sensor (Exposure) is controlled by:

    - Size of the Aperture

    - How long shutter is open (shutter speed)

    - Sensitivity of Sensor (ISO)

    JKM 2/16/2013 4 Enhanced Images

  • JKM 2/16/2013 Enhanced Images 5

    Quantity of Light

     Quantity of light is an absolute. It can be measured by your camera very accurately

     Quantity of light is called Exposure

     Exposure can be controlled either Automatically in your camera or Manually.

     Accurate Exposure makes the difference between a good photograph and a bad photograph

  • JKM 2/16/2013 Enhanced Images 6

    Exposure

     Quantity of Light or Exposure is controlled by three factors:

    How wide is the lens

    opening in your camera?

    How sensitive to light is the

    sensor in your camera?

    How fast does the shutter

    in your camera open and

    close Shutter Speed

    Aperture or f/stop

    ISO

    Quantity

    of Light

    Accurate Exposure can be achieved by

    more than one selection of these three controls

  • Aperture Value

    JKM 2/16/2013 Enhanced Images 7

     These are standard f/stop numbers – 1.4, 2, 2.8, etc.

     Some cameras allow for half stops; some allow for

    third stops. You probably don’t need to know these.

     Why should you care?

     Aperture is a major control of Depth of Field

     Aperture allows for blurring background

    1/3 1/2

    Stop Stop

    f/14 f/13

    f/13

    f/10 f/9.5

    f/9.0

    f/7.1 f/6.7

    f/6.3

    f/5.0 f/4.5

    f/4.5

    f/3.5 f/3.5

    f/3.2

    f/2.6 f/2.5

    f/2.2

    f/1.8 f/1.7

    f/1.6

    One

    Stop

    f/5.6

    300mm

    1/2000

    ISO400

    f/3.5

    100mm

    1/2000

    ISO640

  • Shutter Speed

     Measured in Seconds or fractions of

    seconds – 1/60, 1/125, 1/250, 1/500

     1/125 is half the light of 1/60; 1/250 is

    half the light of 1/125, etc.

     Why should you care?

     Slow shutter speeds cause blur in

    your photos, e.g. blurring a

    waterfall so that water appears to be

    flowing rather than still

     Fast shutter speeds can stop action,

    i.e., hummingbird in flight

    JKM 2/16/2013 Enhanced Images 8

    1/8000 sec

    f/3.2

    ISO 1000

    1/5 sec

    f/22

    ISO 400

  • ISO – Sensor Sensitivity

     ISO is the sensitivity of your camera

    sensor to light

     Higher Values are more sensitive,

    i.e. 100, 200, 400, 800, 1600

     Why should you care?

     High ISO lets you take photos in

    low light situations

     Because of interaction between

    sensor pixels, more sensitivity

    generates noise

     Noise shows up at high magnifications

    typically in the shadow areas of your

    image

    JKM 2/8/2013 Spring Semester 9

    f/2.8

    57 mm

    1/125

    ISO1600

    f/5.6

    400 mm

    1/250

    ISO1600

    f/2.8

    24 mm

    1/100

    ISO1600

  • JKM 2/16/2013 Enhanced Images 10

    Exposure  Quantity of Light or

    Exposure is controlled by three factors:

     ISO - How sensitive to light is the sensor in your camera? Higher ISO creates more noise in your photo

     Aperture or f/stop - How wide is the lens opening in your camera? Higher f/stops yield increased Depth of Field

     Shutter Speed - How fast does the shutter in your camera open and close. Slow Shutter Speeds cause movement blur in your photos. Fast shutter speed stops action.

    Each Step in this diagram represents “One Stop”.

    Most cameras allow for ½ or 1/3 stop increments

  • Pop Up Flash

     Terrible Light

     Flash is a tiny light source.

    Smaller light sources produce

    harsh light

     Slightly above camera lens

    sends light into subjects eye to

    be reflected back into the

    camera producing “Red Eye.”

     Light hits directly on face

    creating “flat” look – no

    texture, shadows, or contrast

     Worst kind of added light you

    could have

     If at all possible, don’t use it

    JKM 2/16/2013 Enhanced Images 11

    Camera

    Eye

    Red Eye

  • Pop Up Flash  If you must use it:

     Use a slow shutter speed to

    capture as much ambient

    light as possible

     Move away from your

    subject to reduce the quantity

    of light from the flash falling

    on the subject.

     Zoom in to get closer

    JKM 2/16/2013 Enhanced Images 12

    Ambient Light

    Flash Light

    Camera Meter

    Light falls off with distance sq

    http://guides.wikinut.com/img/1c130smizn4g713r/Point-and-shoot-camera-with-flash-next-to-lens

  • Pop Up Flash

     If you must use it:

     Use Flash Exposure compensation

    if you have it, to reduce power of

    flash

     Use something over it to diffuse

    light & make it softer

    JKM 2/16/2013 Enhanced Images 13

    http://www.garyfongestore.com/flash-accessories/delta-point-and-shoot-diffuser.html

    http://www.garyfongestore.com/flash-accessories/delta-point-and-shoot-diffuser.html http://www.garyfongestore.com/flash-accessories/delta-point-and-shoot-diffuser.html http://www.garyfongestore.com/flash-accessories/delta-point-and-shoot-diffuser.html http://www.garyfongestore.com/flash-accessories/delta-point-and-shoot-diffuser.html http://www.garyfongestore.com/flash-accessories/delta-point-and-shoot-diffuser.html http://www.garyfongestore.com/flash-accessories/delta-point-and-shoot-diffuser.html http://www.garyfongestore.com/flash-accessories/delta-point-and-shoot-diffuser.html http://www.garyfongestore.com/flash-accessories/delta-point-and-shoot-diffuser.html http://www.garyfongestore.com/flash-accessories/delta-point-and-shoot-diffuser.html http://www.garyfongestore.com/flash-accessories/delta-point-and-shoot-diffuser.html http://www.garyfongestore.com/flash-accessories/delta-point-and-shoot-diffuser.html

  • What Pop Up Flash is good for

     Fill flash

     In outdoor shots with light from behind subject, shadow

    falls on subject’s face

     Pop Up flash can provide fill light to reduce shadows

     Use Flash Exposure Compensation to prevent flash from

    washing out subject. Achieve balance between natural light

    and un-natural light from flash.

     Stopping motion

     Use when some ambient light but subject is in motion.

     Set camera to capture ambient light with slow shutter speed

     Instantaneous burst of light from Flash will freeze motion

    JKM 2/16/2013 Enhanced Images 14

    Flash Indoors

    Fill Flash

    Fill Flash

    Results

  • Examples - Environment

    JKM 2/16/2013 Enhanced Images 15

  • Examples - Background

    JKM 2/16/2013 Enhanced Images 16

  • Examples - Background

    JKM 2/16/2013 Enhanced Images 17

    Auto f/2.8 1/60 Sec ISO200 Flash: on 36 mm

  • Examples - Background

    JKM 2/16/2013 Enhanced Images 18

    Auto f/2.8 1/60 Sec ISO200 Flash: on 36 mm

    Auto f/2.8 1/15 Sec ISO200 Flash: off 36 mm

  • Examples – Fill the Frame; Create Your own Background

    JKM 2/16/2013 Enhanced Images 19

    Auto f/4.0 1/60 Sec ISO250 Flash: on 36 mm

    Auto f/4.0 1/60 Sec ISO100 Flash: on 36 mm

  • Tripod Auto Flash vs Manual

    JKM 2/16/2013 Enhanced Images 20

    Auto f/4.0 1/60 Sec ISO100 Flash: on 36 mm

    Manual on a Tripod f/