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In order for Align Of Sight™ to calculate the DOF for a particular setup, 4 variables need to be factored. The result (5) displays the near and far limits of sharpness.

1. FOCAL LENGTH

2. T-STOP

3. FOCUS DISTANCE

4. CIRCLE OF CONFUSION

5. DISPLAYS THE RESULT

 

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To obtain the CoC value for input into the App's Global Settings panel, simply select your camera from the pulldown list and copy the Circle Of Confusion number below and enter it into your COC field. (Item #4 above.) For your convenience, we've included an online DOF Calculator which is similar to the calculator built into the Align Of Sight App.
Select Camera, Film Format or CoC Value:


Lens: Focal Length (mm)
T-Stop
Focus: Subject distance


Subject Distance (Focus) 10 ft
 
Depth Of Field
Near limit  7.69 ft
Far limit  14.3 ft
Total  6.61 ft
 
In front of subject  2.31 ft (35%)
Behind subject  4.3 ft (65%)
 
Hyperfocal Distance  32.8 ft
CIRCLE OF CONFUSION 0.019 mm
Focus at the subject distance, 10 ft
Near Total Far
7.69 ft 6.61 ft 14.3 ft
Focus at the hyperfocal distance, 32.8 ft
Depth of field extends from 16.4 ft to infinity