Reflection- Introduction to Photography Week 9

Workshop notes: 

Special Techniques and HDRI 

 

Filters

Polarizing

  • Reduces glare,
  • More contrast and saturation
  • Reduces reflections
  • Works best at 90 degrees to light source
  • Cuts out light by about 1.5 stops (might have to adjust exposure)

 

Neutral density

  • Reduces intensity of light
  • Allows for slower shutter speed and shallower depth of field

 

Graduated ND filters

  • Brings out sky, (HDR timelapses etc.)

 

Ultraviolet

  • Reduces haze from UV light

Infrared

  • Blocks all visible light apart from infrared

Coloured

  • Exaggerate selected colours

Star

  • Adds star/twinkling effect

 

High dynamic range imaging

  • Dynamic range is the difference between the darkest and lightest part of an image
  • HDRi allows for a greater range to be represented than standard display can produce

 

e.g. take 1 shot at f4.4 1/32 sec, f4.4 1/13 sec, then f4.4 1/315 sec

 

Combine exposures using tone mapping in Photoshop

 

Guidelines

Choose subject

Use tripod

Set auto bracketing range

Suitable tone mapping

 

Workshop reflection: 

In this workshop we learnt about special effects in photography and HDR imaging. We were taught the differences between lens filters which was helpful as I now know which filters could be useful when shooting certain subjects. We were then given the task to go out on campus and shoot a range of photographs that we could then use to create a HDR image with. Being shown how to do this in PhotoShop was good as I had never worked with HDR this way before.

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