Compact

Nikon Coolpix P7100

The Nikon Coolpix P7100 is a compact with a 1/1.7" sensor measuring 7.4 × 5.6 mm and 10 megapixels. Its crop factor is 4.65×, so a 50 mm lens frames like 233 mm on full frame. Every number below is calculated for this exact sensor.

1/1.7"4.65× crop10 MP
Nikon Coolpix P7100 camera
Photo: Thomas Bresson, CC BY 3.0, via Wikimedia Commons
4.65×
Crop factor
7.4×5.6 mm
Sensor size
42 mm²
Area · 5% of full frame
10 MP
Resolution
2.04 µm
Pixel pitch
f/3.0
Diffraction-limited aperture

Specifications#

Brand
Nikon
Model
Coolpix P7100
Camera type
Compact
Sensor size
7.4 × 5.6 mm (1/1.7" sensor)
Crop factor
4.65×
Resolution
10 MP (3,648 × 2,736 px)
Fastest shutter
1/4,000 s
Weight
395 g (13.9 oz)
Sensor type
CCD
AF points / area
99 focus points
Dimensions
116 x 77 x 48mm (4.57 x 3.03 x 1.89 inches)
Lens
28-200mm equivalent

Specifications merged from Wikipedia, Wikidata and openMVG. Spot an error? Tell us.

Sensor size compared#

1" (one-inch) sensorNikon Coolpix P71001/2.3" sensor
The Nikon Coolpix P7100 sensor (highlighted) drawn to scale against common formats. Its area is 5% of a full-frame sensor, which collects about 4.4 stops less total light at the same exposure.

Focal length equivalents & field of view#

Multiply any focal length by 4.65 to get the full-frame field of view. For fixed-lens cameras use the real focal length printed on the lens (e.g. “6.1–18.3 mm”), not the 35 mm equivalent.

Lens on this cameraFull-frame equivalentHorizontalVerticalDiagonal
4 mm19 mm85.8°69.8°98.6°
4.5 mm21 mm79.2°63.6°91.9°
5 mm23 mm73.3°58.3°85.8°
6 mm28 mm63.6°49.9°75.6°
8 mm37 mm49.9°38.5°60.3°
10 mm47 mm40.8°31.2°49.9°
12 mm56 mm34.4°26.2°42.4°
15 mm70 mm27.9°21.1°34.4°
20 mm93 mm21.1°15.9°26.2°
25 mm116 mm16.9°12.7°21.1°
30 mm140 mm14.1°10.6°17.6°
40 mm186 mm10.6°8.0°13.3°
50 mm233 mm8.5°6.4°10.6°
70 mm326 mm6.1°4.6°7.6°
100 mm465 mm4.3°3.2°5.3°
150 mm698 mm2.8°2.1°3.6°

Depth of field table#

Total depth of field at each subject distance, using a circle of confusion of 6.4 µm (the 0.030 mm full-frame standard scaled by the crop factor).

FocalAperture50.0 cm1.00 m2.00 m3.00 m5.00 m10.0 mHyperfocal
4 mmf/247.6 cm4.52 m∞∞∞∞1.24 m
4 mmf/2.881.5 cm∞∞∞∞∞89.0 cm
4 mmf/42.22 m∞∞∞∞∞62.4 cm
4 mmf/8∞∞∞∞∞∞31.4 cm
9 mmf/27.9 cm32.4 cm1.41 m3.70 m21.6 m∞6.29 m
9 mmf/2.811.1 cm46.4 cm2.21 m7.20 m∞∞4.50 m
9 mmf/416.0 cm70.1 cm4.24 m61.6 m∞∞3.15 m
9 mmf/834.7 cm2.10 m∞∞∞∞1.58 m
15 mmf/22.8 cm11.3 cm46.1 cm1.06 m3.11 m17.0 m17.5 m
15 mmf/2.83.9 cm15.9 cm65.4 cm1.52 m4.76 m44.8 m12.5 m
15 mmf/45.6 cm22.9 cm96.0 cm2.33 m8.49 m∞8.74 m
15 mmf/811.3 cm47.6 cm2.30 m7.72 m∞∞4.38 m
25 mmf/21.0 cm4.0 cm16.3 cm37.0 cm1.04 m4.30 m48.5 m
25 mmf/2.81.4 cm5.6 cm22.9 cm52.0 cm1.47 m6.29 m34.6 m
25 mmf/42.0 cm8.1 cm32.8 cm74.8 cm2.14 m9.91 m24.3 m
25 mmf/83.9 cm16.2 cm67.0 cm1.57 m4.94 m51.1 m12.1 m

Equivalent aperture#

Exposure is identical at the same f-number on any format; equivalence only describes depth of field and total light.

Aperture on this cameraFull-frame equivalent (depth of field)Hyperfocal at 9 mm
f/1.2f/5.610.5 m
f/1.4f/6.58.98 m
f/1.8f/8.46.99 m
f/2f/9.36.29 m
f/2.8f/13.04.50 m
f/4f/18.63.15 m
f/5.6f/26.12.25 m
f/8f/37.21.58 m

Diffraction & pixel pitch#

With 2.04 µm pixels, diffraction starts to soften pixel-level detail around f/3.0. For maximum sharpness keep landscapes between f/2.8 and f/3; stopping down further trades detail for depth of field.

ApertureAiry disk diameterSpread overAt 100% view
f/2.83.8 µm1.8 pxsharp
f/45.4 µm2.6 pxslight softening
f/5.67.5 µm3.7 pxvisibly soft
f/810.7 µm5.3 pxvisibly soft
f/1114.8 µm7.2 pxvisibly soft
f/1621.5 µm10.5 pxvisibly soft
f/2229.5 µm14.5 pxvisibly soft

Maximum print sizes#

At 10 MP the Nikon Coolpix P7100 produces 3,648 × 2,736 pixel images. See the 10 megapixel guide or the print size calculator.

ResolutionTypical useInchesCentimetres
300 DPIPhoto-lab quality12.2 × 9.1 in31 × 23 cm
240 DPIFine-art inkjet15.2 × 11.4 in39 × 29 cm
200 DPIWall print18.2 × 13.7 in46 × 35 cm
150 DPIPoster, viewed from 1 m+24.3 × 18.2 in62 × 46 cm

Night-sky exposure limits#

Longest exposure before stars trail. The NPF rule accounts for pixel pitch and is stricter than the classic 500 rule — use it for pin-sharp stars on high-resolution sensors.

Focal length500 ruleNPF f/1.8NPF f/2.8NPF f/4
4 mm (19 mm eq.)26.9 s31.0 s39.8 s50.3 s
5 mm (23 mm eq.)21.5 s24.8 s31.8 s40.2 s
6 mm (28 mm eq.)17.9 s20.7 s26.5 s33.5 s
8 mm (37 mm eq.)13.4 s15.5 s19.9 s25.1 s
11 mm (51 mm eq.)9.8 s11.3 s14.5 s18.3 s

Open the NPF / 500 rule calculator →

Handheld shutter speed guide#

The reciprocal rule uses the equivalent focal length. High-resolution sensors may need one stop faster than this for pixel-sharp results.

Focal lengthNo stabilisation (1/equiv. focal)With 3-stop ISWith 5-stop IBIS
5 mm1/25 s0.3 s1.3 s
11 mm1/50 s1/6 s0.6 s
21 mm1/100 s1/13 s0.3 s
43 mm1/200 s1/25 s1/6 s

Lens#

The Nikon Coolpix P7100 has a built-in, non-interchangeable lens. Use the real focal length of that lens with the tables above; its full-frame equivalent is that number × 4.65.

Frequently asked questions#

What is the crop factor of the Nikon Coolpix P7100?

The Nikon Coolpix P7100 has a crop factor of 4.65× relative to 35 mm full frame (diagonal 9.3 mm vs 43.3 mm).

What size is the Nikon Coolpix P7100 sensor?

7.4 × 5.6 mm (1/1.7"), an area of 42 mm² — 5% of full frame.

Is the Nikon Coolpix P7100 full frame?

No — its sensor is 1/1.7", which is 20.8× smaller in area than full frame.

How many megapixels does the Nikon Coolpix P7100 have?

10 megapixels (3,648 × 2,736 pixels), enough for a 12 × 9 inch print at 300 DPI.

How long can I expose the night sky with the Nikon Coolpix P7100?

With a 5 mm lens (23 mm equivalent) the 500 rule gives 21 s and the stricter NPF rule at f/2.8 gives 32 s.

Sources & licences#

Last updated October 03, 2026 · How we calculate · Sources