Quad Cities Photography Club

Dan Garrett 11/2012

The Numbers Lens Function

MM F Stop

Camera Body Function Shutter Speed ISO

Dan Garrett 11/2012

MM MM is the unit of measure for a lens

focal length. The distance from the lens focal point to the sensor.

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F-Stop How much light is allowed to contact the

sensor. Affects:

Exposure Focus / Depth of Field

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Shutter Speed The length of time the light is allowed to

contact the sensor. Affects

Exposure Motion

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ISO How sensitive the sensor is to light Affects

Exposure Image Quality / Noise100, 200, 400, 800, 1600, 3200, 6400,

12800Most Light Least

Light

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Final Picture

Exposure Motion Depth of Field

Noise Sharpness Composition

ISO ISO

MM MM

Shutter Speed

Shutter Speed

f-stop f-stop f-stop f-stop

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Focus Manual Automatic Continuous Automatic Image Stabilization

Lens Camera

AF Mode Selector Single Point, Dynamic Area, or Auto Area

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Lens Types Prime Zoom Standard Wide Angle Telephoto Macro Tilt Teleconverter

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Common Filters Neutral Density Graduated Neutral Density Circular Polarizer (DSLR) UV, Clear, Skylight Many More

Sized to match lens.

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Changing Lens Protect from contamination Use lens caps Camera pointed down Align Marks

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Lens Hood Blocks side light, glare spots Matched to lens Physical protection

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Lens Cleaning Lens Pen Cloth Cleaner Solution

very sparingly Apply to cloth, not lens

Blower Never use compressed air Hold so dust falls out

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Sensor Size Crop Factor Increases effective MM

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Which lens?

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Which Lens?

Dan Garrett 11/2012

Which Lens?

Dan Garrett 11/2012

More Camera Simulator http://camerasim.com/

Wikipedia http://en.wikipedia.org/wiki/Dslr

Nikon http://www.nikonusa.com/en/index.page

Photo.net http://photo.net/learn/

Nikkor Lens Glossary http://imaging.nikon.com/lineup/lens/glossary.htm#rf

Camera and Lens Reviews http://www.kenrockwell.com/

Dan Garrett 11/2012