Advanced Digital Photography

Session 2

Agenda

• Side door unlock until 6:30• Review photos• Continue discussion of lighting

– Histogram– White balance

• Practice• Composition Tips• Assignment

Exposure Review 4 factors

• Amount of light• ISO• Shutter speed• F-stop

Adjustments to compensate underexposed (- to 0)

• Add additional light• Make camera more sensitive to light (increase

ISO)• Let light into the camera for longer period of

time (decrease shutter speed)• Let more light into the lens by widening the

aperture (decrease the f-stop)

Adjustments to compensate overexposed (+ to 0)

• Find a darker area• Make camera less sensitive to light (decrease

ISO)• Let light into the camera for shorter period of

time (increase shutter speed)• Let less light into the lens by widening the

aperture (increase the f-stop)

Camera Modes

• Automatic – camera sets everything, average exposure

• Manual – control of all the settings everything• Shutter Priority – select the speed, the camera

sets the aperture based on 0 exposure• Aperture Priority – select the aperture,

camera sets the speed based on 0 exposure

Histogram

A graph that displays where all of the brightness levels contained in the scene are found from darkest (left) to brightest (right)

0 +1 +2-1-2

Blinking – Overexposed

For Nikon D40 users, view an image in your LCD screen, then press the up and down buttons near the 'Ok' to scroll to the histogram

Canon 400D SLR camera, view a photograph in your LCD screen, then press the DISP button twice, on the top left near the LCD screen. You should then see the histogram.

Use of a Grey Card

Can help with metering to identify 0

White Balance

Incandescent light with Auto WB Incandescent light no WB

Incandescent light set to cool white florescent

SOURCE DEGREES KMatch Flame 1700Candle Flame 185040 Watt Incandescent Tungsten Lamp 2650

75 Watt Incandescent Tungsten Lamp 2820

100 Watt Incandescent Tungsten Lamp 2865

500 Watt Incandescent Tungsten Lamp 2960

Professional Tungsten Photo Lamp 3200

Daylight (Sunlight is the light of the sun only. Daylight combines sunlight and skylight. )Sunlight: Sunrise or sunset 2000

Sunlight: One Hour After Sunrise 3500

Sunlight: Early Morning or Late Afternoon 4300

Average Summer Sunlight at:Noon in the Mid-Latitudes 5400Direct Mid-Summer Sunlight 5800

Overcast Sky 6000Daylight Fluorescent Lamp 6300Late summer shade 7100Average Summer Shade 8000Summer Sky (Varies) 9500-30,000

For Nikon users, 1. press the menu button on the back near

the LCD screen, 2. 'Shooting Menu'. From there, 3. choose 'White Balance'.

For Canon users1. white balance setting can

be found on the back panel

2. Look for WB

Setting When to use…

Daylight This is a good setting for direct sunlight. For example, a beach landscape mid morning where you're not shooting into shade

Shade Use shade white balance in shady area's or sunset shots. It will help give a warmer color to your shots.

Cloudy This is a good setting for cloudy days. It's also quite effective for shady area's as well. I've found there is a fine line between shade and cloudy white balance settings.

Tungsten This is one of the most extreme balance settings of them all and should only be used with tungsten light bulbs. Or at times where you purposefully want a blue tinge to your images.

Fluorescent This setting will help make inside fluorescent house lighting, look a bit better than the yellowy orange color you usually see.

Flash Flash white balance is used mostly for studio work.

Let’s Go Play