Viewfinder Visualisations

Focus peaking

The focus peaking visualisation is a tool to assist with focusing. Contrasted edges within the viewfinder image are highlighted a bright colour to make it easier for you to determine which part of your scene is in focus. The more highlighted edges you see, the more likely it is that that part of the scene is in focus.



The best way to use focus peaking is to follow the points below:

1. Drag the focus control in a direction that makes the subject become sharp and focused. With focus peaking switched on you should see lots of highlights as the sharpness increases.

2. Continue to drag the control in the same direction until subject become slightly blurry and the highlights reduce. This will give you an opportunity to see the point at which most highlights are visible.

3. Drag the focus control back to the point where the most highlighted edges could be seen. Your subject should now be sharp and focused.



Expanded Focus

The expanded focus visualisation is another tool to assist with focusing. The image within the viewfinder is digitally enlarged by 200% to make is easier to see when your subject matter is sharp and in focus. As with all the MAVIS visualisations, the expanded focus is only applied in the viewfinder. Don't forget to switch it off as you may additionally think you are recording a close up shot! Tapping on the red 'Expanded Focus' notification is a quick way to switch off expanded focus. 





False Colour and False Colour Ranges

The false colour visualisation is a tool to assist with exposure. Raw pixel values are converted into a colour palette that shows their luminance values. In general, blues and purples are underexposed whereas reds and yellows are over exposed. False Colour comes in two modes; standard and ranges. Standard mode is designed to show the entire range of luminance values. False Colour Ranges is designed to show specific bands of luminance values. In general the false colour visualisation is designed to make it easy to see small peaks or troughs in luminance. 




False Colour representation 

The image below shows the colour representation for the standard False Colour mode. 0% luminance is represented with the colour blue, 25% luminance with cyan, 50% luminance with green, 75% luminance with yellow and 100% luminance with red. The colours in between these major points are a blend. 




False Colour Ranges representation

The image below shows the colour representation for False Colour Ranges mode. 0-2.5% luminance is represented with the colour purple, 2.5-4% luminance with blue, 38-42% luminance with green, 52-56% luminance with pink, 97-99% luminance with yellow and 100% luminance with red. The colours in between this major points are a grey scale.  

These bands match up to specific ranges that are important when filmmaking. 0-2.5% is underexposed and clipping has occurred. 2.5-4% is in danger of being underexposed and you may loose details in the darkest parts of the image. 38-42% is equivalent to 18% neutral grey. 52-56% is useful for exposing Caucasian skin tones. 97-99% is in danger of being overexposed and you may loose details in the brightest parts of the image. 99-100% is overexposed and clipping has occurred. 





The zebras visualisation is a tool to assist with exposure. Pixels over a set luminance threshold level are filled with a striped or cross-hatch pattern (commonly known as a zebra pattern) to dramatically highlight the areas that are over the given exposure threshold. The threshold value can be set in the settings menu. You can use a high threshold level to make sure your overall scene is correctly exposed or use a lower threshold (e.g. 70-80%) to view highlights across a range of skin tones.






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