alycin2
DoF calculation pt 1 (f/4.5)
I used the lens provided in the kit for the Nikon D3400, which is the ultra-compact AF-P DX NIKKOR 18-55mm f/3.5-5.6G VR lens.
C = 0.020 mm --> according to Google
N = 4.5 (taken from f/4.5)
U = 457.2 mm
f = 35 mm
Using the DoF equation: (2CNU^2)/f^2
DoF = ( 2 * 0.020 * 4.5 * (457.2)^2 ) / (35)^2
= 26.924 mm
The ruler is also at a 45 degree angle, so that must be accounted for:
DoF = sqrt(2) * 26.924 ≅ 38.07mm
Looking at the photo, I’d say that it is fully focused around about the 9cm to 13cm mark, which would be a range of 40mm, which is pretty close to the calculated 38.07mm!
DoF calculation pt 1 (f/4.5)
I used the lens provided in the kit for the Nikon D3400, which is the ultra-compact AF-P DX NIKKOR 18-55mm f/3.5-5.6G VR lens.
C = 0.020 mm --> according to Google
N = 4.5 (taken from f/4.5)
U = 457.2 mm
f = 35 mm
Using the DoF equation: (2CNU^2)/f^2
DoF = ( 2 * 0.020 * 4.5 * (457.2)^2 ) / (35)^2
= 26.924 mm
The ruler is also at a 45 degree angle, so that must be accounted for:
DoF = sqrt(2) * 26.924 ≅ 38.07mm
Looking at the photo, I’d say that it is fully focused around about the 9cm to 13cm mark, which would be a range of 40mm, which is pretty close to the calculated 38.07mm!