Rule of thirds from term 3
We Talked about how to photograph small things ..
Wednesday, November 19, 2008
Term 4 Session 5 "Rule of Thirds", Night Photography
(UPDATE Aug 2012 - I have removed images that won't display correctly but will leave the text here as reference)
Rule of thirds from term 3
Rule of thirds from term 3
Wednesday, November 12, 2008
Term 4 Session 4 SLR's and Digicams, "F" numbers, Depth of field, Exposure Compensation
(UPDATE Aug 2012 - I have removed images that won't display correctly but will leave the text here as reference)
Much of my additional information comes
from the internet reference
site called "Wikipedia" which is at http://en.wikipedia.org/wiki/Main_Page
If you like the resource you may think about donating towards the upkeep of this site.
Wikipedia (pronunciation
)is a free,[5]multilingual encyclopedia project supported
by the non-profit Wikimedia Foundation. Its name is a portmanteau of the words wiki
(a technology for creating collaborative websites) and encyclopedia.Wikipedia's
10 million articles have been written collaboratively by volunteers
around the world, and almost all of its articles can be edited by anyone who can access the Wikipedia website.[6]
Launched in 2001 by Jimmy Wales and Larry Sanger,[7]it is currently the largest and most popular[1] general reference work on the Internet.[8][9][10]
Parallax Error
Parallax is an apparent displacement or
difference of orientation of an object
viewed along two different lines of sight, and is measured by the angle
or semi-angle of
inclination between those two lines
Digital single-lens reflex camera.
http://en.wikipedia.org/wiki/Digital_single-lens_reflex_camera
A digital
single-lens reflex camera
(digital SLR or DSLR) is a digital camera that uses
a mechanical mirror system and pentaprism to direct light from the lens to an optical
viewfinder on the back of the camera.
Compact
digital still camera
http://en.wikipedia.org/wiki/Digital_Camera
F-number
http://en.wikipedia.org/wiki/F_stop
In optics, the f-number
(sometimes called focal
ratio, f-ratio, or relative aperture[1]) of an optical system expresses
the diameter of the entrance pupil in terms of the focal length of the lens; in simpler terms,
the f-number is the focal length divided by the "effective" aperture
diameter.
It is a dimensionless
number that is
a quantitative measure of lens speed,
an important concept in photography.
Depth of field
http://en.wikipedia.org/wiki/Depth_of_Field
In optics, particularly as it relates
to film and photography, the depth of field (DOF) is the portion of a scene
that appears sharp
in the image. Although a lens can precisely focus at only one
distance, the decrease in
sharpness is gradual on either side of the focused distance, so that
within the DOF, the
unsharpness is imperceptible under normal viewing conditions.
NB.These pictures are also courtesy of Wikipedia
F22 = Very deep field
F2.8 Very shallow field
At f/32,
the background is distracting.
At f/5.6,
the flowers are isolated from the background.
Metering mode
http://en.wikipedia.org/wiki/Metering_mode
In photography,
the metering
mode refers to
the way in which a
camera determines the exposure.
Exposure compensation
http://en.wikipedia.org/wiki/Exposure_compensation
Exposure compensation
is a technique for adjusting the exposure indicated by a photographic
exposure
meter, in
consideration of factors that may cause the indicated exposure to
result in
a less-than-optimal image. Factors considered may include unusual
lighting distribution,
variations within a camera system, filters, non-standard processing,
or intended underexposure or overexposure. Cinematographers may also
apply exposure
compensation for changes in shutter
angle or film speed, among other factors.
Much of my additional information comes
from the internet reference
site called "Wikipedia" which is at http://en.wikipedia.org/wiki/Main_Page
If you like the resource you may think about donating towards the upkeep of this site.
Wikipedia (pronunciation
)is a free,[5]multilingual encyclopedia project supportedby the non-profit Wikimedia Foundation. Its name is a portmanteau of the words wiki
(a technology for creating collaborative websites) and encyclopedia.Wikipedia's
10 million articles have been written collaboratively by volunteers
around the world, and almost all of its articles can be edited by anyone who can access the Wikipedia website.[6]
Launched in 2001 by Jimmy Wales and Larry Sanger,[7]it is currently the largest and most popular[1] general reference work on the Internet.[8][9][10]
Parallax Error
Parallax is an apparent displacement or
difference of orientation of an object
viewed along two different lines of sight, and is measured by the angle
or semi-angle of
inclination between those two lines
Digital single-lens reflex camera.
http://en.wikipedia.org/wiki/Digital_single-lens_reflex_camera
A digital
single-lens reflex camera
(digital SLR or DSLR) is a digital camera that uses
a mechanical mirror system and pentaprism to direct light from the lens to an optical
viewfinder on the back of the camera.
Compact
digital still camera
http://en.wikipedia.org/wiki/Digital_Camera
F-number
http://en.wikipedia.org/wiki/F_stop
In optics, the f-number
(sometimes called focal
ratio, f-ratio, or relative aperture[1]) of an optical system expresses
the diameter of the entrance pupil in terms of the focal length of the lens; in simpler terms,
the f-number is the focal length divided by the "effective" aperture
diameter.
It is a dimensionless
number that is
a quantitative measure of lens speed,
an important concept in photography.
Depth of field
http://en.wikipedia.org/wiki/Depth_of_Field
In optics, particularly as it relates
to film and photography, the depth of field (DOF) is the portion of a scene
that appears sharp
in the image. Although a lens can precisely focus at only one
distance, the decrease in
sharpness is gradual on either side of the focused distance, so that
within the DOF, the
unsharpness is imperceptible under normal viewing conditions.
NB.These pictures are also courtesy of Wikipedia
F22 = Very deep field
F2.8 Very shallow field
At f/32,
the background is distracting.
At f/5.6,
the flowers are isolated from the background.
Metering mode
http://en.wikipedia.org/wiki/Metering_mode
In photography,
the metering
mode refers to
the way in which a
camera determines the exposure.
Exposure compensation
http://en.wikipedia.org/wiki/Exposure_compensation
Exposure compensation
is a technique for adjusting the exposure indicated by a photographic
exposure
meter, in
consideration of factors that may cause the indicated exposure to
result in
a less-than-optimal image. Factors considered may include unusual
lighting distribution,
variations within a camera system, filters, non-standard processing,
or intended underexposure or overexposure. Cinematographers may also
apply exposure
compensation for changes in shutter
angle or film speed, among other factors.
Wednesday, November 5, 2008
Term 4 Session 3: Factors When Buying a Digital Camera.
(UPDATE Aug 2012 - I have removed images that won't display correctly but will leave the text here as reference)
Remember when your looking at a digital camera it's a lot more than just the megapixels.
Major factors to look at are the lens, processor, software (firmware), build quality, brand reputation. For more factors check out this link to my reference site:
http://home.people.net.au/~james.bell/J01_photoref.html#S03
this has more links about this topic below the mind map.
Please report any links you may find, that don't work, to me so I can fix them.
This article seems worth reading........
Factors to Consider when Choosing a Digital SLR Camera
http://photo.net/equipment/choosing-a-dslr-camera/ <== follow this link for more.
"The newcomer to the world of Digital SLR cameras is presented with a bewildering array of options. It’s hard to keep track of exactly who is currently making DSLRs and how many models each have, but as of summer 2008 there were at least 9 manufacturers (Canon, Fuji, Leica, Nikon, Olympus, Panasonic, Pentax, Samsung and Sony) and between them there were something like 34 different models.
How do you choose which one to buy, and in what ways are they different? With so many different cameras available and new models being announced every few months it’s not really possible to make specific recommendations on which one is "best". The term "best" will depend on many factors unique to the user. However, I will attempt to outline the various factors that you might want to take into account when deciding which one to purchase."
Digital Zoom
This is the DP Review link about Digital Zoom really worth the look
http://www.dpreview.com/learn/?/Glossary/Digital_Imaging/Digital_zoom_01.htm
It's clear from the picture that digital zoom is not helping at all.
It's no clearer ... just bigger and your computer can do that!
----------------------------------------------------------------------------------------------------------------------------------
White Balance
http://www.dpreview.com/learn/?/Glossary/Digital_Imaging/White_Balance_01.htm
"Most digital cameras also allow you to choose a white balance manually,
typically sunlight, cloudy, fluorescent, incandescent etc. Prosumer and
SLR digital cameras allow you to define your own white balance
reference. Before making the actual shot, you can focus at an area in
the scene which should be white or neutral gray, or at a white or gray
target card. The camera will then use this reference when making the
actual shot."
1..
2..
1)The auto white balance was unable to find a white reference, resulting in dull and artificial colors.
2)The auto white balance got it right this time in a very similar scene
because it could use the clouds as its white reference.
------------------------------------------------------------------------------------------------------------------------------------------
A&R at Charlestown had this one that looked interesting.
------------------------------------------------------------------------------------------------------------------------------
FlexPod
This flex pod may not be quite the quality of a GorillaPod but was only $29 at Myers.
The original GorillaPod is at http://www.joby.com/products/gorillapod/original/
and it only weighs 45 grams.
The original GorillaPod (below)available from NDF is at
http://www.joby.com/products/gorillapod/original/
and it only weighs 45 grams.
Remember when your looking at a digital camera it's a lot more than just the megapixels.
Major factors to look at are the lens, processor, software (firmware), build quality, brand reputation. For more factors check out this link to my reference site:
http://home.people.net.au/~james.bell/J01_photoref.html#S03
this has more links about this topic below the mind map.
Please report any links you may find, that don't work, to me so I can fix them.
This article seems worth reading........
Factors to Consider when Choosing a Digital SLR Camera
http://photo.net/equipment/choosing-a-dslr-camera/ <== follow this link for more.
"The newcomer to the world of Digital SLR cameras is presented with a bewildering array of options. It’s hard to keep track of exactly who is currently making DSLRs and how many models each have, but as of summer 2008 there were at least 9 manufacturers (Canon, Fuji, Leica, Nikon, Olympus, Panasonic, Pentax, Samsung and Sony) and between them there were something like 34 different models.
How do you choose which one to buy, and in what ways are they different? With so many different cameras available and new models being announced every few months it’s not really possible to make specific recommendations on which one is "best". The term "best" will depend on many factors unique to the user. However, I will attempt to outline the various factors that you might want to take into account when deciding which one to purchase."
Digital Zoom
This is the DP Review link about Digital Zoom really worth the look
http://www.dpreview.com/learn/?/Glossary/Digital_Imaging/Digital_zoom_01.htm
It's clear from the picture that digital zoom is not helping at all.
It's no clearer ... just bigger and your computer can do that!
----------------------------------------------------------------------------------------------------------------------------------
White Balance
http://www.dpreview.com/learn/?/Glossary/Digital_Imaging/White_Balance_01.htm
"Most digital cameras also allow you to choose a white balance manually,
typically sunlight, cloudy, fluorescent, incandescent etc. Prosumer and
SLR digital cameras allow you to define your own white balance
reference. Before making the actual shot, you can focus at an area in
the scene which should be white or neutral gray, or at a white or gray
target card. The camera will then use this reference when making the
actual shot."
1..
2..1)The auto white balance was unable to find a white reference, resulting in dull and artificial colors.
2)The auto white balance got it right this time in a very similar scene
because it could use the clouds as its white reference.
------------------------------------------------------------------------------------------------------------------------------------------
A&R at Charlestown had this one that looked interesting.
------------------------------------------------------------------------------------------------------------------------------
FlexPod
This flex pod may not be quite the quality of a GorillaPod but was only $29 at Myers.
The original GorillaPod is at http://www.joby.com/products/gorillapod/original/
and it only weighs 45 grams.
The original GorillaPod (below)available from NDF is at
http://www.joby.com/products/gorillapod/original/
and it only weighs 45 grams.
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