Creative Carole: Photography: Week Five (Flash & Light Room)

Tuesday 12 November 2013

Photography: Week Five (Flash & Light Room)

Flash

Red Eye Reduction
TTL
Fill in Flash

Can be Auto or Forced

Red Eye Reduction

When set - this can reduce the red that sometimes appears in the middle of a subjects eye. It will flash several times before the actual picture is taken. Useful for close up portraits. There is less chance of Red Eye however, when the flash is to the side of the camera as opposed to above (with most DSLR).

Remember: Red eye can also be removed post production using computer software.

TTL - Through The Lens

All DSLR use TTL. The DSLR will automatically calculate how much flash light is needed between the subject and the camera. However, this can be manually tweaked if needed.

Fill in Flash

Where you use the flash to fill in details when shooting towards brightly lit scenes (eg. person in front of window, or in front of sun)
Need to switch on flash on - not automatic

Note: TTL Auto and Fill in Flash are much the same

Note: Increasing your ISO will increase the amount of flash light

Class Exercise:

Work through ISO settings, with flash -

ISO 100

ISO 1600

Picture Types

Two Formats - RAW or JPEG

Raw:
Not Compressed
No Settings
Able to edit everything

Advantages:
uncompressed & unprocessed
collects more data and dynamic range
can be saved again and again with lost of detail
edit exposure, wb, noise - all in post processing without any loss of details
professional finish

Disadvantage:
Massive file - on a 4GB card you would generally get around 800 jpeg files while only 160 raw files
Much longer to process
Specific software to deal with raw file

JPEG:
Advantages:
Usually better image straight from camera
less memory needed due to compression of picture
great for quick print and quick turnaround

Disadvantages:
Once processed - can lack detail compared to RAW file
Compressed image
Not able to post process extensively

NOTE: Camera can save as both or either.

Light Room