Nikon 1 J5: Crop Factor, NPF Rule & Hyperfocal Chart

Name: Nikon 1 J5
Brand: Nikon

The Nikon 1 J5 uses the Nikon CX mount with a 2.73× crop factor (about 13.2 × 8.8 mm sensor). Below: equivalent focal lengths, maximum shutter speeds for sharp stars, a hyperfocal distance chart, compatible lenses and how to check the shutter count.

Mount

Nikon CX

Crop factor

2.73×

Sensor (approx.)

13.2 × 8.8 mm

Circle of confusion

0.011 mm

Equivalent focal length & field of view

Lens focal length	Full-frame equivalent	Diagonal FOV	Horizontal FOV
8 mm	22 mm	89.5°	79.0°
10 mm	27 mm	76.8°	66.8°
12 mm	33 mm	66.9°	57.6°
14 mm	38 mm	59.1°	50.5°
16 mm	44 mm	52.7°	44.8°
18 mm	49 mm	47.6°	40.3°
20 mm	55 mm	43.3°	36.5°
24 mm	65 mm	36.6°	30.8°
28 mm	76 mm	31.6°	26.5°
35 mm	95 mm	25.5°	21.4°
50 mm	136 mm	18.0°	15.0°
85 mm	232 mm	10.7°	8.9°
135 mm	368 mm	6.7°	5.6°
200 mm	545 mm	4.5°	3.8°
300 mm	818 mm	3.0°	2.5°

Multiply by the 2.73× crop factor for the full-frame equivalent field of view.

Milky Way exposure: NPF and 500 rule

Focal length	NPF @ f/1.8	NPF @ f/2.8	Strict NPF @ f/2.8	500 rule
8 mm	16.9 s	21.2 s	11.6 s	22.9 s
10 mm	13.5 s	17.0 s	9.3 s	18.3 s
12 mm	11.2 s	14.2 s	7.7 s	15.3 s
14 mm	9.6 s	12.1 s	6.7 s	13.1 s
16 mm	8.4 s	10.6 s	5.8 s	11.5 s
18 mm	7.5 s	9.4 s	5.2 s	10.2 s
20 mm	6.8 s	8.5 s	4.7 s	9.2 s
24 mm	5.6 s	7.1 s	3.9 s	7.6 s

NPF = (35 × f-number + 30 × pixel pitch) ÷ focal length, with a pixel pitch of 2.4 µm (typical for this format — exact resolution not in our database). The strict version (Michaud's detailed NPF for the galactic core) gives pin-point stars at 100% view; the 500 rule is a loose rule of thumb that shows trailing on modern sensors.

Hyperfocal distance chart

Focal length	f/2.8	f/5.6	f/8	f/11	f/16
10 mm	3.3 m	1.6 m	1.1 m	0.8 m	0.6 m
14 mm	6.4 m	3.2 m	2.2 m	1.6 m	1.1 m
16 mm	8.3 m	4.2 m	2.9 m	2.1 m	1.5 m
18 mm	11 m	5.3 m	3.7 m	2.7 m	1.9 m
20 mm	13 m	6.5 m	4.6 m	3.3 m	2.3 m
24 mm	19 m	9.4 m	6.6 m	4.8 m	3.3 m
28 mm	25 m	13 m	8.9 m	6.5 m	4.5 m

Focus at the hyperfocal distance and everything from half that distance to infinity is acceptably sharp (circle of confusion 0.011 mm). Use the hyperfocal calculator for other settings.

Compatible lenses (342 in our database)

Lens	Focal length	Max aperture	Mount
Nikon Nikkor AI-S 6mm f/2.8 Fisheye	6 mm	f/2.8	Nikon F AI-S
Nikon Nikkor AF-S 10-24mm f/3.5-4.5G DX ED	10–24 mm	f/3.5	Nikon F AF
Nikon Nikkor AF-P 10-20mm f/4.5-5.6G DX VR	10–20 mm	f/4.5	Nikon F AF
Nikon 1 Nikkor VR 10-30mm f/3.5-5.6	10–30 mm	f/3.5	Nikon CX
Nikon 1 Nikkor VR 10-30mm f/3.5-5.6 PD-ZOOM	10–30 mm	f/3.5	Nikon CX
Nikon 1 Nikkor 10mm f/2.8	10 mm	f/2.8	Nikon CX
Nikon 1 Nikkor AW 10mm f/2.8	10 mm	f/2.8	Nikon CX
Nikon Nikkor AF 10.5mm f/2.8G DX ED Fisheye	10 mm	f/10.5	Nikon F AF
Nikon 1 Nikkor AW 11-27.5mm f/3.5-5.6	11–28 mm	f/3.5	Nikon CX
Nikon Nikkor AF-S 12-24mm f/4G DX IF-ED	12–24 mm	f/4	Nikon F AF
Nikon Nikkor AF 14mm f/2.8D ED	14 mm	f/14	Nikon F AF
Nikon Nikkor AF-S 14-24mm f/2.8G ED	14–24 mm	f/2.8	Nikon F AF
Nikon Nikkor AI 15mm f/3.5	15 mm	f/3.5	Nikon F AI
Nikon Nikkor AF-S 16-35mm f/4G ED VR	16–35 mm	f/4	Nikon F AF
Nikon Nikkor AF-S 16-80mm f/2.8-4E DX ED VR	16–80 mm	f/2.8	Nikon F AF
Nikon Nikkor AF-S 16-85mm f/3.5-5.6G DX ED VR	16–85 mm	f/3.5	Nikon F AF
Nikon Nikkor AF-S 17-35mm f/2.8D IF-ED	17–35 mm	f/2.8	Nikon F AF
Nikon Nikkor AF-S 17-55mm f/2.8G DX IF-ED	17–55 mm	f/2.8	Nikon F AF
Nikon Nikkor AF 18-35mm f/3.5-4.5D IF-ED	18–35 mm	f/18	Nikon F AF
Nikon Nikkor AF-S 18-55mm f/3.5-5.6G DX ED	18–55 mm	f/3.5	Nikon F AF
Nikon Nikkor AF-S 18-55mm f/3.5-5.6G DX VR	18–55 mm	f/3.5	Nikon F AF
Nikon Nikkor AF-S 18-55mm f/3.5-5.6G DX VR II	18–55 mm	f/3.5	Nikon F AF
Nikon Nikkor AF-S 18-70mm f/3.5-4.5G DX IF-ED	18–70 mm	f/3.5	Nikon F AF
Nikon Nikkor AF-S 18-105mm f/3.5-5.6G DX ED VR	18–105 mm	f/3.5	Nikon F AF
Nikon Nikkor AF-S 18-135mm f/3.5-5.6G DX IF-ED	18–135 mm	f/3.5	Nikon F AF
Nikon Nikkor AF-S 18-200mm f/3.5-5.6G DX VR IF-ED	18–200 mm	f/3.5	Nikon F AF
Nikon Nikkor AF-S 18-200mm f/3.5-5.6G DX VR IF-ED II	18–200 mm	f/3.5	Nikon F AF
Nikon Nikkor AF-S 18-140mm f/3.5-5.6G DX ED VR	18–140 mm	f/3.5	Nikon F AF
Nikon Nikkor AF-S 18-300mm f/3.5-6.3G DX ED VR	18–300 mm	f/3.5	Nikon F AF
Nikon Nikkor AF-S 18-300mm f/3.5-5.6G DX ED VR	18–300 mm	f/3.5	Nikon F AF
Nikon Nikkor AF-P 18-55mm f/3.5-5.6G DX VR	18–55 mm	f/3.5	Nikon F AF
Nikon Nikkor AF-S 18-35mm f/3.5-4.5G ED	18–35 mm	f/3.5	Nikon F AF
Nikon 1 Nikkor 18.5mm f/1.8	18 mm	f/1.8	Nikon CX
Nikon Nikkor AI-S 20mm f/2.8	20 mm	f/2.8	Nikon F AI-S
Nikon Nikkor AF-S 20mm f/1.8G ED	20 mm	f/1.8	Nikon F AF
Nikon Nikkor AF 20mm f/2.8D	20 mm	f/20	Nikon F AF
Nikon Nikkor AF 20-35mm f/2.8D IF	20–35 mm	f/20	Nikon F AF
Nikon Nikkor AI 20mm f/3.5	20 mm	f/3.5	Nikon F AI
Nikon Nikkor AI-S 24mm f/2.8	24 mm	f/2.8	Nikon F AI-S
Nikon Nikkor AI-S 24mm f/2	24 mm	f/2	Nikon F AI-S

Native and adapter-free compatible lenses from the Lensfun database. Third-party and adapted lenses may also work.

How to check the Nikon 1 J5 shutter count

Nikon writes the shutter count into the MakerNotes of every JPEG and NEF. Upload a fresh, unedited file to an EXIF viewer or run `exiftool -ShutterCount image.nef`.

ExifTool tag: ShutterCount. Always test an original, unedited file straight from the card.

Where to buy

Compare new and used prices at these retailers:

B&H Photo Amazon KEH (used)MPB (used)

Other Nikon CX cameras

FAQ

What is the crop factor of the Nikon 1 J5?

2.73×. A 24 mm lens frames like a 65 mm lens on full frame.

What shutter speed should I use for the Milky Way with the Nikon 1 J5?

With a 8 mm lens at f/2.8, about 21 seconds keeps stars sharp (NPF rule).

How do I check the shutter count on the Nikon 1 J5?

Nikon writes the shutter count into the MakerNotes of every JPEG and NEF. Upload a fresh, unedited file to an EXIF viewer or run `exiftool -ShutterCount image.nef`.

Which lenses fit the Nikon 1 J5?

Lenses for the Nikon CX mount and compatible mounts (Nikon F, Nikon F AF, Nikon F AI) — 342 are listed above.