Monday, September 21, 2020

Advanced Camera workshop

 In todays media lesson we attended an advanced camera workshop where we mainly learned about the different lens types but also we covered shutter speed or angle and aperture or exposure and positioning of actors. 

Ill quickly explain a recap of the camera and the tripod or the Blackmagic URSA mini 4.6K. When setting up the tripod, always start from the bottom up when so that the camera is stable when filming because all of the legs are locked in place. When changing the height of the tripod, always start with the bottom set of legs first so that if you need to go higher, it's much easier to just lift the camera up rather than trying to extend the bottom legs while holding the camera. You MUST always remember to bubble the tripod and camera after every adjustment so that the camera is level. Cameras let in more or less light depending on whether you are outside or inside. This is called White balance, a higher White balance setting is needed when inside because the lighting is very orange and lower one is needed when outside because the light is blue.


Exposure

Exposure is the amount of light that a camera will receive, the brighter the shot, the more light being received. Exposure also relates to Shutter speed and Aperture which also can be known as depth of field. this image talks about all 3



Shutter speed or angle  relates to how sharp or how blurry an image is when moving in front of a camera also know as motion blur. The Blackmagic URSA Mini 4.6K have 180 as their optimum shutter speed. The lower the shutter speed such as 90 or lower, the sharper and more crisp the moving image is and higher, the more blurry it is and easier to watch. Higher shutter speeds such as 360 or higher are used for mainly fast paced media shoots and sequences from an action film or maybe a fast rap music video.


Aperture is depth of field meaning how far behind the subject in the foreground is in focus in the shot. Having a deep foreground creates a visually spectacular shot sometimes and a one that isn't as deep can create mystery.


For example, this photo of me and the Arcadia Cruise ship has a very deep aperture as you can clearly see me in the foreground and also clearly make out that that is a cruise ship in the background.

Lenses.


Today we looked at new lease types, for example the difference between and prime lens and a zoom lens. A zoom lens can zoom and create a tight shot, however the quality isn't as efficient as a prime lens which is in a fixed position but has a very sharp image.

The lenses that come with the Blackmagic URSA Mini 4.6K are a 

18mm

21mm

25mm

28mm

35mm

50mm

85mm




Like I said, the prime lenses cannot zoom and so they create a still shot which is tighter depending on how large the lens length is, so an 18mm lens is wider than an 85mm which is very zoomed in but creates a quality image. 

You focus a prime lens  by measuring the length from the 'Ø' symbol on the camera to the length of aperture in your shot. If it is 6''3 away from the 'Ø' there you adjust the wheel to 6''3.

And finally we learned about positioning actors and actresses in positions where they would be in shot but also not being covered by a shadow and have a good depth of field.


We looked at the screen for framing assistance  but not while adjusting shutter speed and aperture and exposure, because the camera gives a more precise image.





No comments:

Post a Comment