Image sensors / pixels

What is a image sensor

An image sensor is a device that converts an optical image to an electric signal

The sensor builds a image out of dots called pixels , the more pixels your sensor has will affect the image quality of your prints depending on how big your final image will be

The importance of sensor size

I like how he explained the advantages of a full frame sensor and

the advantages of a cropped sensor



^ less pixels ^ less detail ^                          ^ more pixels ^more detail ^



The more pixels the more detail in the picture , as pixels decrease the less detail

1st image is 72-ppi                        2nd is at 300 -ppi

There are two different kinds of digital sensor the CCD sensor and the CMOS complementary metal oxide semiconductor sensor which is the never version . both produce great images



CMOS SENSOR

                                                                       
CCD sensor

Relationship Between the Number of Pixels on the Sensor and in the Digital Image

Normally each pixel in the digital image is based on the measurement in one square pixel so a 10 megapixal image is based on a 10 pixel measurements




How a pixel gets its colour



some canon cameras use  that use a aps-c sized sensor which is smaller than full-frame.  when you put a lens on the camera, the smaller sensor can only see a cropped portion of the entire picture. mathematically, the crop factor on most canon cameras is 1.6x.   

My canon 450 d has a 1.6x sensor

Because the sensor is smaller than a full frame sensor
A 100mm lens would show a area of view that a 160mm lens would show on a full frame sensor
Multiply a lens focal lenght by 1.6 to get the focal lenght of a lens you use

I have noticed the disavanges of a croped sensors praticly with landscape photography and articurral lanscapes

With my macro and sports photography it has been a advanging  in getting even closer to the subject so i have been able to get closer then a full frame sensor with same lens  .
 The crop sensor's photo would be more magnified than the image captured by the full frame camera but the quality of a full sensor performer better in low light
  A larger image sensor will produce a better image than a crop sensor because the pixels will be larger .
so if you have the budget a full frame sensor will produce a betetr quaity of image .

conclusion

A sensor is the one of the most important parts of a camera
 The better the sensor, the more faithful the reproduction of the scene you want to capture

Theme 1 Products draft

 Unit 306 / Products

I wanted to take some shots just using a can of pop
I tyred different ways of shooting the can from in a light tent to under water

Equiment

canon 450d
lens 60mm macro
2 x AC Studio flash 336v
2x 208W AC Slave Flash Wide Angle
Light Tent


Fish tank

Canon 450d

Lens 60mm

Shutter speed 1/250

Aperture f/20

ISO 100

Metering Evaluative

Canon 450d

Lens 60mm

Shutter speed 1/320

Aperture f/22

ISO 100

Metering Evaluative

Canon 450d

Lens 60mm

Shutter speed 1/320

Aperture f/22

ISO 100

Metering Evaluative

Canon 450d

Lens 60mm

Shutter speed 1/250

Aperture f/22

ISO 100

Metering Evaluative

Canon 450d

Lens 60mm

Shutter speed 1/320

Aperture f/22

ISO 100

Metering Evaluative

Canon 450d

Lens 60mm

Shutter speed 1/320

Aperture f/22

ISO 100

Metering Evaluative

Canon 450d

Lens 60mm

Shutter speed 1/320

Aperture f/22

ISO 100

Metering Evaluative

Canon 450d

Lens 60mm

Shutter speed 1/320

Aperture f/22

ISO 100

Metering Evaluative

Canon 450d

Lens 60mm

Shutter speed 1/320

Aperture f/22

ISO 100

Metering Evaluative

Canon 450d

Lens 60mm

Shutter speed 1/320

Aperture f/22

ISO 100

Metering Evaluative

Canon 450d

Lens 60mm

Shutter speed 1/320

Aperture f/22

ISO 100

Metering Evaluative

Canon 450d

Lens 60mm

Shutter speed 1/320

Aperture f/22

ISO 100

Metering Evaluative

Canon 450d

Lens 60mm

Shutter speed 1/320

Aperture f/22

ISO 100

Metering Evaluative

Canon 450d

Lens 60mm

Shutter speed 1/320

Aperture f/22

ISO 100

Metering Evaluative

Canon 450d

Lens 60mm

Shutter speed 1/320

Aperture f/22

ISO 100

Metering Evaluative

Canon 450d

Lens 60mm

Shutter speed 1/320

Aperture f/22

ISO 100

Metering Evaluative

Unit 306 Theme 1 Products , Equipment and assignment ideas

               Assignment ideas

I like to take photos of advertising for products i hope to get 10 good images

I intend to use water somehow in the photos

I will use a fish tank and dyes

maybe some close ups


                                                 My equipment for Products Studio

I have my camera a canon 450d

The EOS 450D blends an uncompromising performance with ease of use in a lightweight, ergonomic body. Capture your world with a 12.2 mega pixel CMOS sensor and the very latest Canon technologies. The 12.2 megapixel CMOS sensor gives you plenty of detail for poster-size prints and extra flexibility when cropping. Sensitive in low light and virtually noise-free, Canon's CMOS sensors are also remarkably power-efficient. The EOS 450D captures up to 3.5 frames per second for a continuous burst of up to 53 large JPEG images. The 9 AF points are spread out across the frame to better accommodate off-center subjects. The central AF

LENSES

Canon EF 50mm f/1.8 

 The cheapest canon lens you can buy new , I was recommend this lens and I've seen many good reviews so i brought i was not disappointed. I have used for it every part of photography and is my most used lens the nifty fifty it has a great wide aperture of  f/1.8 so is great for depth of filed shots

 

Canon EF 50mm f/1.8 II Specifications
Frame Coverage	35mm
Lens Construction (groups)	5
Lens Construction (elements)	6
No. of Diaphragm Blades	5
Minimum Aperture	22
Closest Focusing Distance	0.45m (17.7")
Maximum Magnifcation	0.15x
Filter Diameter	52mm
Maximum Diameter x Length	68.2mm x 41mm (2.7" x 1.6")
Weight	130g (4.6oz)

TAMRON SP AF60mm F/2.0 Di II MACRO 1:1

My macro lens will be the main lens are use for advertising

 

Focal length	60mm
35mm equivalent focal length	93mm
Diagonal angle of view	27°
Maximum aperture	F2.0
Minimum aperture	F22
Lens Construction	14 elements/ 10 groups
Number of diaphragm blades	7
Minimum focus distance	0.23m
Minimum Working Distance	100mm (3.94in.)
Maximum magnification Ratio	1:1
Image stabilization	No
Filter thread	55mm
Weight	400g (14.1 oz)
Dimensions	73mm diameter x 80mm length (2.9 x 3.15 in)
Compatible Mounts	For Canon, Nikon, Sony

	AC Studio flash 336v
	Compact, lightweight but powerful . Flash power control, full, half or quarter power. Fire by sync lead test button or slave 208W AC Slave Flash Wide Angle A TRIPOD
	A might use my tripod for some shots to help with sharpness
	A FLASH GUN I have the jessops 360 AFD it will help with exposure A SYNC CORD Perhaps the simplest way to get your flash off the camera, a sync cord fits on your camera’s hotshoe at one end, and via a length of coiled cable provides a mount for your flashgun at the other end. Hopefully are be able to capture my 10 macro shots using my equipment .

I also might do some work in the studio using the cameras and lenses there

Studio at college
	I also may use the camera and lenses at college And the studio lighting

Unit 306 Theme 2 Studio portraits equipment and assignment ideas

Unit 307 Theme 2 Studio portraits equipment and assignment ideas

Assignment ideas Portraits

I have enjoyed taking a few outdoor portraits shots of pets and people in the past so will be nice to take some shots of studio portraits

I would like to take fashion , magazine editorial sort of shots

                                         Equipment used for Portraits

  my camera a canon 450d

The EOS 450D blends an uncompromising performance with ease of use in a lightweight, ergonomic body. Capture your world with a 12.2 megapixel CMOS sensor . The 12.2 megapixel CMOS sensor gives you plenty of detail for poster-size prints and extra flexibility when cropping. Sensitive in low light and virtually noise-free, Canon's CMOS sensors are also remarkably power-efficient. The EOS 450D captures up to 3.5 frames per second for a continuous burst of up to 53 large JPEG images. The 9 AF points are spread out across the frame to better accommodate off-center subjects. The central AF point is a high sensitivity cross type sensor for quick, accurate focusing with f/2.8 and faster lenses.

         
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Canon EF 50mm f/1.8  This prime lens is very light and handy i have took allot of good portrait shots with it in past so should be useful   Canon EF 50mm f/1.8 II Specifications Frame Coverage 35mm Lens Construction (groups) 5 Lens Construction (elements) 6 No. of Diaphragm Blades 5 Minimum Aperture 22 Closest Focusing Distance 0.45m (17.7") Maximum Magnification 0.15x Filter Diameter 52mm Maximum Diameter x Length 68.2mm x 41mm (2.7" x 1.6") Weight 130g (4.6oz)
TAMRON SP AF60mm F/2.0 Di II MACRO 1:1 My macro lens also makes a geat portrait lens   Focal length 60mm 35mm equivalent focal length 93mm Diagonal angle of view 27° Maximum aperture F2.0 Minimum aperture F22 Lens Construction 14 elements/ 10 groups Number of diaphragm blades 7 Minimum focus distance 0.23m Minimum Working Distance 100mm (3.94in.) Maximum magnification Ratio 1:1 Image stabilization No Filter thread 55mm Weight 400g (14.1 oz) Dimensions 73mm diameter x 80mm length (2.9 x 3.15 in) Compatible Mounts For Canon, Nikon, Sony Canon 55-250 lens This zoom lens will be handy with its zoom and image stabilizer A TRIPOD A FLASH GUN I have the jessops 360 AFD it will help with exposure A SYNC CORD Perhaps the simplest way to get your flash off the camera, a sync cord fits on your camera’s hotshoe at one end, and via a length of coiled cable provides a mount for your flashgun at the other end. Studio at college I also may use the camera and lenses at college And the studio lighting Bowens light with soft box  knobs to effect power of light  Bowens light with barn doors Bowens Esprit Gemmini GM500 Bowens light Ring Diffisure