Photography Calculators

Optics & depth of field

Depth of Field Calculator: Nikon Z8 + Fujifilm XF 35mm f/1.4 R

This page is pre-filled for the Nikon Z8 + Fujifilm XF 35mm f/1.4 R (Full Frame, 45.7 MP, 35 mm at f/1.4). Change focus distance or aperture if you stop down.

Moderate DoF on the Nikon Z8 + Fujifilm XF 35mm f/1.4 R

At 3 m, 35 mm f/1.4 on Full Frame (CoC 0.03 mm) gives near 2.73 m, far 3.33 m, total 0.60 m. Hyperfocal is 29.2 m. A couple of people at this distance stay in the band; groups still need a smaller aperture.

The Result is indicative and educational. It does not constitute a design, a technical opinion or medical advice and does not replace calculations or verification by a person with the appropriate qualifications and authorisations. Before purchase, installation or use in practice – in particular in electrical installations – the Result should be verified by a qualified specialist. Details: Terms of Service, point 4.

Nikon Z8 + Fujifilm XF 35mm f/1.4 RFull Frame · 45.7 MP · CoC 0.03 mm · 35 mm f/1.4 · Fujifilm X

Inputs

Units
mm

Number on the barrel, not the 35 mm-equivalent printed on a crop body.

f/

f-number you will shoot, not the lens’s maximum.

m

Subject distance from the sensor plane. Imperial shows feet.

mm

≈0.030 mm full frame, ≈0.020 mm APS-C, ≈0.015 mm Micro Four Thirds.

Results

Hyperfocal distance
29.24m

Focus distance from which the far limit is infinity.

Near sharp limit
2.73m

Near CoC limit; anything closer counts as out of focus.

Far sharp limit
3.33m

Far CoC limit, or infinity.

Total depth of field
0.60m

Far minus near when the far limit is finite.

Far limit is infinity
No

Yes when you are focused at or beyond hyperfocal.

The Result is indicative and educational. It does not constitute a design, a technical opinion or medical advice and does not replace calculations or verification by a person with the appropriate qualifications and authorisations. Before purchase, installation or use in practice – in particular in electrical installations – the Result should be verified by a qualified specialist. Details: Terms of Service, point 4.

Example products

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Calculation method

Every distance here is measured from the sensor plane, like the lens distance scale. The thin-lens formulas need the distance from the lens instead, so the focus distance D is first split into lens-to-subject u and lens-to-sensor v, with u + v = D and 1/u + 1/v = 1/f. The hyperfocal distance from the lens is H₀ = f² divided by (f-number times CoC), plus f, with focal length and CoC in metres; the hyperfocal shown adds its own lens-to-sensor distance, so it is measured from the sensor too. The near limit is u times (H₀ minus f) over (H₀ plus u minus 2f), plus v. If you focus at or past the hyperfocal distance, the far side is treated as infinity. Otherwise the far limit is u times (H₀ minus f) over (H₀ minus u), plus v, and total DoF is far minus near.

Exact formula

D = focus distance from the sensor. u = (D + √(D·(D − 4f)))/2, v = D − u. H₀ = f²/(N·c) + f from the lens; shown hyperfocal H = H₀·(1 + N·c/f) = f²/(N·c) + 2f + N·c. Dn = u(H₀−f)/(H₀+u−2f) + v. If D ≥ H, far is infinity. Else Df = u(H₀−f)/(H₀−u) + v, total = Df − Dn. f and c in metres. Invalid if D < 4f. Limits: Thin-lens, no focus breathing, no diffraction; CoC is a viewing convention, not a sensor spec; subject motion and focus-shift on zoom omitted.

Portrait vs landscape

At 50 mm f/1.8 and 3 m on full frame you have centimetres of DoF, not metres. Landscapes usually want hyperfocal or a focus stack. Portraits usually want the eyes in and the background out — do not chase a large total DoF number.

Live view lies

Magnified live view is not the same CoC as an 8×10 print. If the job matters, take a test shot at the taking aperture and check the file.

Frequently asked questions

Is this the distance on the lens scale?

It is distance from the sensor plane, the same reference EXIF uses. Barrel marks on old primes are close; many zooms are not. Tape the subject if the DoF is millimetres.

Why does far jump to infinity?

Once focus is at or beyond hyperfocal, the far plane of the CoC model is infinity. You still have a near limit. Stopping down does not magically sharpen a missed focus.

Which CoC should I use?

0.030 mm is the usual full-frame print convention. Pixel-peeping or a huge print wants a smaller CoC and will show less DoF. Pair this with the circle-of-confusion calculator if you are unsure.

Does crop factor go in here?

Not as a separate field. Use the real focal length and the CoC for that sensor; the smaller CoC is where the crop already lives. Typing a 35 mm-equivalent focal length counts the crop again and understates DoF — by the crop factor with a full-frame CoC, by its square with the APS-C CoC.

Why does this differ from some other DoF calculators?

Many put the focus distance straight into the thin-lens formulas, which expect the distance from the lens. This one takes the distance from the sensor plane, as the lens scale and a tape from the ⦶ mark give it, and splits it into lens-to-subject and lens-to-sensor first. Beyond a few metres the two agree within a few percent; at 1 m with a 50 mm f/1.8 the shortcut overstates DoF by about 12%.

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