What I think of the other projects
I loved the one where the theme was to click pictures of people travelling and how most dont interact with each other and are engrossed with their gadgets. Also the one focusing on the amalgamation of western and eastern cultures and how someone exists with both giving each equal importance.
Basic Photography by David Prackel
The reading for this week was more math stuff of photography.
Guide number = aperture x distance
To work out the aperture: measure the distance to the subject (use your lens scale). Divide the guide number by
this distance to get the f-stop. Guide number of 45 (GN) Flash to subject distance is 8m (FD) Aperture is unknown
(f) f = GN/FD 45/8 = f/5.6
To work out the flash distance: divide the guide number by working aperture to get the flash to subject distance.
Guide number of 45 (GN) Flash to subject distance is unknown (FD) Aperture is f/11 (f) FD = GN/f 45/11 = about 4m
This stuff will surely takes me weeks to figure out properly.
A major disadvantage of flasgun photography-
The vampire or ghost look
On-camera flash will produce the familiar ‘red-eye’ effect when the flashgun is close to the lens
axis (which it is with most compact cameras with built-in flash). Light from the flashgun enters
the eye and illuminates the blood in the retina, which is then photographed. ‘Red-eye
reduction’ is offered on most cameras with pop-up flash. This is usually a pre-flash (or flashes)
that closes the subject’s iris, but also tends to make them squint in the picture. On-camera
flash also produces a very flat frontal light, giving little or no modelling effect.
I loved the one where the theme was to click pictures of people travelling and how most dont interact with each other and are engrossed with their gadgets. Also the one focusing on the amalgamation of western and eastern cultures and how someone exists with both giving each equal importance.
Basic Photography by David Prackel
The reading for this week was more math stuff of photography.
Guide number = aperture x distance
To work out the aperture: measure the distance to the subject (use your lens scale). Divide the guide number by
this distance to get the f-stop. Guide number of 45 (GN) Flash to subject distance is 8m (FD) Aperture is unknown
(f) f = GN/FD 45/8 = f/5.6
To work out the flash distance: divide the guide number by working aperture to get the flash to subject distance.
Guide number of 45 (GN) Flash to subject distance is unknown (FD) Aperture is f/11 (f) FD = GN/f 45/11 = about 4m
This stuff will surely takes me weeks to figure out properly.
A major disadvantage of flasgun photography-
The vampire or ghost look
On-camera flash will produce the familiar ‘red-eye’ effect when the flashgun is close to the lens
axis (which it is with most compact cameras with built-in flash). Light from the flashgun enters
the eye and illuminates the blood in the retina, which is then photographed. ‘Red-eye
reduction’ is offered on most cameras with pop-up flash. This is usually a pre-flash (or flashes)
that closes the subject’s iris, but also tends to make them squint in the picture. On-camera
flash also produces a very flat frontal light, giving little or no modelling effect.
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