Tuesday, June 18, 2019

Technique Macro Photography

Macro Photography

Definition - A macro photograph is one in which the size of the subject on the negative or image sensor is life size or greater, although most of the time we will end up looking at a large size image of a really small insect or flower.

Image Bank




Technique
- Most camera manufactures sell Macro lens which allow photographers to expand the image to greater than 1:1 . However these lens' are expensive, alternatively learners can use the camera in macro mode if available ( this may not be as effective as a dedicated lens )
- Use point of focus or manual focus
- Use a tripod to frame the object an background, apply compositional tules where possible
- Experiment with depth of field, you will be very close to your subject which results in a sudden drop off on focus, to overcome this you might want to maximise you depth of field therefore shoot at f 16 - f 22. In other circumstances you may like the drop off in focus in which case use lower f stop.
- Work with a low / medium ISO from 100 - 400
- Aply manual exposure and the exposure meter to ensure that the subject is adequately exposed.
- In some case you may choose to use flash light.

Task:
Use the studio and the Nikon camera with macro lens ONLY.  Photograph close up an eye, lips, nose , fill the frame up. Then take up close photos of different flowers.



The first set of photos taken with the Marco lens are all in focus which i really good. I really like how you can see all the different colours in the eye shown. However there is a reflection in the eye from the light used. This effect however i quite like as it shows up even more colours in the eye.



In the next series i wanted to also challenge my focusing skills by using a white flower which means there is next to no contrast making focusing the lens difficult. I believe i managed to keep the flower in focus as well as frame the photo how i wanted it. I really like the out come where all the petals look thin and soft.



In the next series i wanted to see how the lens would act on multiple flowers at slighting different depths of field. I really like how in the photos the ones in the foreground are super sharp and the top of them are starting to blur out. 



In the last series i wanted to see how much detail i could obtain. I like how these photos turned out and i really love the dark veins in the petals that are really sharp making them standout. 

Overall i think i'm likely to use the Macro photography technique in my project. 

Technique Focal Lengths

Focal Length Techniques

A camera lens is composed of multiple lens elements assembled and fitted together in a tube called a lens barrel.





A camera lens may be designed as prime or zoom.


PRIME - has a fixed focal length that does not change. They are also generally higher quality than zoom.

ZOOM - most cameras are supplied with a zoom lens allowing the user to switch from wide angle shots though to telephoto. Zoom lens' are highly flexible, however certain photographers will purchase specific lens for dedicated purposes.

Focal length - its defined as the distance in mm from the optical centre of the lens to the focal point, which is located on the sensor.

The most important factor in any camera lens is its focal length. This determines which type of lens it is, and what subjects it will be able to photograph. Focal lengths range from just a few mm up to over a m , and can be loosely grouped as follows:


Field of view ( FOV ) - determined by the angle of view from the lens out to the scene and can be measured horizontally or vertically. Its associated with focal length, usually based on the 35mm film photography, given popularity of the format over others.
Larger sensors or films have wider FOVs and can capture more of the scene.

In 35mm photography, lenses with a focal length of 50mm are called "normal" because they work without reducing or magnifying and creates images the way we see the scene with our naked eyes (same picture angle of 46°). 

Types of lenses

Zoom lenses - A lens allowing a camera to change smoothly from a long shot to a close-up or vice versa by varying the focal length.

Wide angle lenses - ( short focal length ) capture more because they have a wider picture angle, broader field of view than the human eye. A wide-angle lens deepens space; it makes everything seem further away from the camera. It also deepens or increases depth of fields. 

Telephoto lenses - ( long focal length ) have a narrower picture angle. This is associated with larger magnification of distant objects. They magnify the images by 'pulling' them closer to you. As a result they also magnify vibrations from your trembling hand and when pressing the shutter and this can result in blur or fuzzy pictures. Also is good for blurring backgrounds with a low F Stop.


Typical focal lengths and their 35mm format designations

< 20mm -- Super Wide Angle


24mm - 35mm -- Wide Angle


50mm -- Normal Lens


80mm - 300mm -- Tele


> 300mm -- Super Tele



Focal length experiment

Need an outdoor location, using the zoom lens, ensure that there is a foreground, mid ground and background.

How to do the experiment
1. Using a tripod photograph the same scene at the different telephoto settings on your lens
2. Record these settings
3. Make sure to observe whether there is any distortion at smaller focal lengths ( 18 mm ) compared to long focal length ( 55 mm )

Example


Outdoor landscape changes
- standing in one place and using the zoom on the camera.

Camera Settings
ISO - 200
F stop 8
Shutter Speed 1 / 125


55 mm 


45 mm


35 mm


24 mm


18 mm
Facial distortion photos
- moving to frame the photo the same every time.

Camera Settings
ISO - 200
F stop 5.6
Shutter Speed 1 /125


55 mm


45 mm


35 mm


24 mm


18 mm

Analysis
For where i stood still and used the zoom lens to zoom out of the photo. The technique worked really well there is a obvious change in the landscape allowing more to be seen. The Tripod i used stopped camera shake and there is no movement other than the different change in stages.
In the series where i moved to keep the frame the same the distortion worked well. There is a clear difference in the shape of the face shown between the 55mm and the 18mm. In the background of the 55mm it is also blurred which is as expected and its not distorted. Where as in the 18mm the background is in focus but there is distortion in the face making it rounder. 

In my project i will use the knowledge of the technique in my work to stop distortion if i wanted to. As well as this i may use the telephoto lens in order to blur a background if i wanted to.

Technique Wide-Angle

Wide - Angle

Definition - Is an approach taken when using wide angle lens e.g. 18 mm - 24 mm and shooting the main foreground subject close up. This approach will render interesting outcomes as the lens distorts the foreground subject.

Wide - angle lenses can be employed when shooting close - ups for a unique approach to working with foreground elements, unusual perspectives and extended depth of field. These combinations can create some of your most dynamic landscape images.

The technique can be used in commercial, for example in extreme close ups in cinematography.

Image Bank




Effects of wide - angle close up
- Distorts the foreground
- Often used to show foreground interest within the context of an environment
- Surreal imagery can be created
- Can be used to shoot nature ( flowers in a landscape )
- Requires that you shoot at a short focal length 
- Use of a tripod is recommended

Settings:
1. Manual settings 
2. Focal Length - 18 mm
3. Apature - F Stop 8
4. Shutter Speed - 1/125
5. ISO - 200

Images that need improvement 

This photo didn't work as the subject, in this case it was the person, moved as i was taking the photo.This resulted in a unwanted blur meaning that the distortion of the face in the photo didn't work. 



In this photo i didn't get close enough to the subject, the flower, in order to make it look unrealistically big.


In this photo there is to much background and i was close enough. This means the photo has distorted and just looks normal. As well as this there is camera shake as i took the photo so i needed to have used a tri-pod for this photo maybe.

Best Photos


In this photo i zoomed right into the face of my subject as a result distorting the fore head and glasses.


The distortion in this photo is in the flower as it is much larger that life a looks extremely big compared to the steam.


In this last photo the foot that is closer to the camera is distorted so it looks like its a lot larger than the other, which makes you feel like you are about to be stepped on. 


Why does the picture distort?
The reason for the distortion seen is because of the amount of information that's put into the image which has to the be condensed down into the specific dimensions of the frame.

Overall i dont think i will use this technique in my project.

Thursday, June 13, 2019

Techniques Animated GIF

Animated GIF

Definition - An animated GIF is an image encoded in graphics interchange format (GIF), which contains a number of images or frames in a single file and is described by its own graphic control extension. The frames are presented in a specific order in order to convey animation. An animated GIF can loop endlessly or stop after a few sequences.

How to achieve this :
1. Tripod
2. Fast shutter speed
3. Manual camera settings ( to fix the exposure )
4. Manual focus
5. No camera shake ( be careful when pressing the button )
6. Direct the shoot ( composition / framing and where the moving elements will move from and to are important )
7. Photo-editing software ( Photoshop )

Image Bank





Contact Sheet



Settings 
1. Manual setting
2. Shutter Speed - 1/125
3. Aperture - F 5.6
4. ISO - 200
5. Burst shoot mode 

How to make an animated GIF:
1. Open photos in photoshop, 
2. Go to image, image size, tick resize, select pixels on everything ( width 900 , height 600 , resolution 72 )
3. Do this to ever picture
4. Are the pictures in order
5. Then , cmd a , cmd c , go to original , cmd v ( repeat with other images )
6. Go to window, click timeline
7. Click create timeline
8. Set end duration to 5 on all pictures, then build the animation.
9. Settings on the video bit and select loop, play.
10. Select file, save for web, colour ( 128 ), looping options ( forever )
11. Save to desktop 

Final product



Analysis of the final product
I final product worked as a GIF. The difference between this GIF and the ones in my image bank is that mine is not a noticeable loop. Instead it shows directional movement. There is a need for improvement in this GIF because there is camera shake. I think this was caused when i was holding the capture button and this caused the shake. Either that or the tri-pod i was using wasn't in a stable position. 

How to improve 
To improve this GIF all i can do is re-take the images however making sure to check the tri-pods stability. As well as this i could have also taken more than one series of images, allowing me more to choose from.

I may uses this technique in my project.

Techniques Sequencing

Sequencing

Definition: By definition, a sequence is a serial arrangement in which things follow in logical order or a recurrent pattern. Photo sequencing is actually stitching multiple images together and it is a form of time-lapse photography. A change in an object's position over time is being displayed and it only works when the object moves across a static background.

How to achieve this:
1. Tripod
2. Fast shutter speed
3. Manual camera settings ( to fix the exposure )
4. Manual focus
5. No camera shake ( be careful when pressing the button )
6. Direct the shoot ( composition / framing and where the moving elements will move from and to are important )
7. Photo-editing software ( Photoshop )

Image Bank




Contact Sheets

Settings 
1. Manual setting
2. Shutter Speed - 1/125
3. Aperture - F 5.6
4. ISO - 200
5. Burst shoot mode 

How to make a sequencing photograph using photoshop?

1. Open photoshop and import the three or four pictures needed to form your image.
2. Then go to the second picture and press cmd A , cmd C. Move to the first picture and press cmd V.
3. After create a mask
4. Next go to the top of photoshop and press edit, fill and choose black.
5. Make your brush white and brush in the area wanted.
6. Repeat with the next picture.

Lastly adjust the image so it looks correct ( e.g. no extra arms or things that lead no where ).


Final Product



Analysing the final product
The final product is all in focus and steady. This means that there is no camera shake that i helped control through the use of my tripod. Within the image i have one person printed in 3 places which is how i wanted them. I also have made sure to have the correct amount of arms and legs within the image.

I am likely not going to use this technique in my project