This week was A LOT of talking, but in saying that i did learn a lot. Taking Intro to Photography at the same time I find helps, I can bounce things I learn in one subject off the other.
DIGITAL CAPTURE
Colour and Light
- light changes over time of day, and therefore we need to be mindful of the effect it has on our images
- it changes the shades of colour and what might seem like correct colour balance might in face be incorrect
-lights give off different colours - Tungsten (light globe) is yellow, Flash is normally a neutral daylight, fluros can vary from green to red * dependent.
- can use colour filters to adjust light differences
-Digitali's colour can be changed with White Balance, telling the camera what colour the light is
- preset white balances eg. sunny, cloudy
-K value/ Kelvin Degrees is a measure of light colour
-When shooting raw, adjust the white balance after taking the picture, hold up a grey card in the same light conditions ( always 18% grey)
- can use this to represent accurate colour
- Areas of photography where perfect colour is needed, product photography, fine art reproduction
- some images look great without perfect colour, moody images or late photography era.
File Types
- RAW eg NEF, CR2, DNG
- equivalent of a negative, contains raw data such as time date, fstop aperture exposure, lens.
- needs to be converted to jpeg or tiff
- raw converter - Photoshop and Light room "Camera Raw" plugin
-TIFF
- big files, known as bitmap images
- lossless format data info for each pixel
- saved over and over and never loses quality
-used when maximum detail is needed.
- good to keep original image
-keeps lay info
JPEG
-lossy format, cant be saved over and over - pixels clam together ( compression) to save space
- data info discarded, looks like blocks of pixels in colour groups
(TIFF for printing and originals, JPEG, small web designs screen use)
Resolution
- amount of info that makes up and image
- based on image size and ppi (pixels per inch or dots per inch dpi)
-images can be the same size and still have diferent ppi
- for screen, all that matters is the pixel size ppi is irrelevant in web use
- for printing image size and resolution will determine how big and the quality of the printed image
- *My printer is Up to 9600 x 2400-optimized dpi (when printing from a computer on selected HP photo papers and 1200-input dpi) average printer will print at 100-180 ppi.
- get into a habit of work flow, saving work, backing work up, correctly naming files ect. - i like to think im pretty organised like that already :)
Storage
- Cds and Dvds - on the way out, fragile
- USB - good, sturdy, up to 8 gig memory, small easily lost
- *Hard drive - heaps of storage, cant be moved while on. I have a 2tb hardrive, that i back my work onto.
- cloud - Internet storage, costs money, unlimited storage, has equal pros and cons to me.
