Friday, March 28, 2014

Assignment 5

Lenses 




Wide-angle- this lens has a very wide angle of view, which allows you to work very close to your subject and still include it all in the frame.



Zoom- has a range of focal lengths. Eg. 18-55mm 

Long focus- makes distance objects look larger for magnifying  
Telephoto-  this has a very narrow angle of view.

 Retro-focus- A wide angle lens with the front element is negative rather then positive which is found in most wide angle lenses.
 Quasi fish-eye- full frame, this creates a rectangle photo.
 True fish-eye- Creates images with a slightly curved or bowed appearance, and a field of view that covers up to 180 degrees.

 Catadioptric- it uses refraction and reflection to reduce the physical length of the lens.

 Macro- highly magnifies subjects and has the ability to achieve sharp close up focus.   
Teleconverter- it is connected between the lens and the camera body and it magnifies the effect of the lens that you are using. 
Supplementary- used to increase the magnification, it’s a cheap way to start Marco photography.  

PC or tiltshift- changes the lens imaging circle in relation to the sensor, it gives the photographer control over the perspective of the image.   

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