DSLR Photography Workshop – Theory Led.

DSLR Workshop
Theory based
Lecturer: Malcolm Bennett

Camera is Latin for dark room. Italians started developing cameras. They were thinking about camera obscuras.

The shutter exposes light to the film. Fast shutter speed doesn’t expose your images very much. Slow shutter speed exposes light better. Slow shutter speed is not suitable for movement but fast shutter speed is appropriate for movement.

The lens has an aperture where you turn it and it makes the hole bigger or smaller. They are numbered FStops. Different sized lens cast different sized images. For example, the smaller the hole in the lens, the higher the number and vice versa for bigger holes, smaller the number.

SLR – single lens reflex.
Light reflects upwards as there is a mirror and that defects up into the view finder. Bigger film creates more detail and bigger prints – but aren’t as sharp on smaller film.

Compact cameras replaced film cameras of 35mm. You need to have the right camera for prints. Pixels and quality means sharper prints – and more money!!

Photographers who do movement photography – artists such as MJ Lewis – always go for cameras that have a fast shutter speed as a priority to them.
A camera can record a bullet leaving a gun with flash – enables you to see the world differently, as there is so many different shutter speeds that can record half a second or so, capturing things that happen so quickly and freeze them in time.
Slow shutter speed can create ‘ghosts’ when things are moving and become blurred. It is possible to retain another image but not on film, just digital.

Narrow depth of field – in and out of focus.
Wide depth of field – all in focus
FStops – small holes are bigger numbers and bigger holes are smaller numbers
Bigger hole – smaller depth of field
Small hole – bigger depth of field

F62 is an aperture which is the size of a pinhole. Depth of field is focus. Smaller holes need more exposure to light than bigger holes.

On digital SLRs, there is a dial on top of the camera to select different modes.
Mountain symbol – smaller aperture – wide depth of field
Portrait – big aperture – small depth field
Tulip – closeups – narrow depth field – to capture a lot of detail. Good shutter speed and less light.
Running man – fast shutter speed for movement, the mode that events photographers most likely used out of them all.
Backlight – exposed to brighter light

Lens are given a number in millimetres and gives you different views. Bigger the number bigger the focal length.

Fisheye lens tend to be expensive and are only used occasionally. Plus can now edit that effect now in Photoshop so is not really required. Makes the images curved and more distorted.

Telephoto lens flatten the image especially landscapes. You haven’t got that sense of perspective so becomes a flat image.

Zoom lens usually come in kits.

Photograph shutter speed and aperture and ISO – sensitivity of film to light.

P- Programe
AV- Shutter speed priority
TV- shutter speed – works out aperture
M- manual. You set everything.
B- ‘bulb’.

Faster film- more grainy
Slower film- less grainy
Digital noise – grainy effect

Advertisements

Author: lawrenceaaronmaker

Studying a BA Hons in Artist, Designer; Maker at Cardiff Metropolitan University.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s