Casio Exilim EX-Z3 Specs, Sensor Size & Crop Factor

Q: What is the crop factor of the Casio Exilim EX-Z3?

The Casio Exilim EX-Z3 has a crop factor of 6.05× relative to 35 mm full frame (diagonal 7.1 mm vs 43.3 mm).

6.05×

Crop factor

5.7×4.3 mm

Sensor size

24 mm²

Area · 3% of full frame

2003

Release year

Specifications#

Brand: Casio
Model: Exilim EX-Z3
Also known as: EX-Z3
Camera type: Compact
Released: 2003-01-01
Sensor size: 5.7 × 4.3 mm (1/2.5" sensor)
Crop factor: 6.05×

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

Sensor size compared#

The Casio Exilim EX-Z3 sensor (highlighted) drawn to scale against common formats. Its area is 3% of a full-frame sensor, which collects about 5.1 stops less total light at the same exposure.

Focal length equivalents & field of view#

Multiply any focal length by 6.05 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 camera	Full-frame equivalent	Horizontal	Vertical	Diagonal
4 mm	24 mm	71.3°	56.1°	83.6°
4.5 mm	27 mm	65.1°	50.7°	76.9°
5 mm	30 mm	59.7°	46.1°	71.1°
6 mm	36 mm	51.1°	39.1°	61.6°
8 mm	48 mm	39.5°	29.8°	48.1°
10 mm	61 mm	32.0°	24.0°	39.3°
12 mm	73 mm	26.9°	20.1°	33.2°
15 mm	91 mm	21.7°	16.2°	26.8°
20 mm	121 mm	16.3°	12.2°	20.3°
25 mm	151 mm	13.1°	9.7°	16.3°
30 mm	182 mm	10.9°	8.1°	13.6°
40 mm	242 mm	8.2°	6.1°	10.2°
50 mm	303 mm	6.6°	4.9°	8.2°
70 mm	424 mm	4.7°	3.5°	5.8°
100 mm	605 mm	3.3°	2.4°	4.1°
150 mm	908 mm	2.2°	1.6°	2.7°

Depth of field table#

Total depth of field at each subject distance, using a circle of confusion of 5.0 µm (the 0.030 mm full-frame standard scaled by the crop factor).

Focal	Aperture	50.0 cm	1.00 m	2.00 m	3.00 m	5.00 m	10.0 m	Hyperfocal
4 mm	f/2	33.9 cm	1.99 m	∞	∞	∞	∞	1.62 m
4 mm	f/2.8	52.8 cm	6.81 m	∞	∞	∞	∞	1.16 m
4 mm	f/4	98.8 cm	∞	∞	∞	∞	∞	81.1 cm
4 mm	f/8	∞	∞	∞	∞	∞	∞	40.8 cm
7 mm	f/2	10.1 cm	41.9 cm	1.93 m	5.74 m	∞	∞	4.95 m
7 mm	f/2.8	14.2 cm	61.1 cm	3.31 m	18.1 m	∞	∞	3.54 m
7 mm	f/4	20.8 cm	95.8 cm	9.22 m	∞	∞	∞	2.48 m
7 mm	f/8	47.4 cm	4.54 m	∞	∞	∞	∞	1.24 m
12 mm	f/2	3.4 cm	13.7 cm	55.8 cm	1.29 m	3.89 m	26.1 m	14.5 m
12 mm	f/2.8	4.7 cm	19.2 cm	79.6 cm	1.88 m	6.25 m	262 m	10.4 m
12 mm	f/4	6.7 cm	27.7 cm	1.18 m	2.97 m	13.0 m	∞	7.28 m
12 mm	f/8	13.7 cm	58.8 cm	3.13 m	15.3 m	∞	∞	3.64 m
20 mm	f/2	1.2 cm	4.9 cm	19.7 cm	44.6 cm	1.25 m	5.27 m	40.4 m
20 mm	f/2.8	1.7 cm	6.8 cm	27.6 cm	62.7 cm	1.78 m	7.87 m	28.8 m
20 mm	f/4	2.4 cm	9.7 cm	39.6 cm	90.6 cm	2.63 m	13.1 m	20.2 m
20 mm	f/8	4.8 cm	19.6 cm	81.7 cm	1.94 m	6.53 m	928 m	10.1 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 camera	Full-frame equivalent (depth of field)	Hyperfocal at 7 mm
f/1.2	f/7.3	8.25 m
f/1.4	f/8.5	7.07 m
f/1.8	f/10.9	5.50 m
f/2	f/12.1	4.95 m
f/2.8	f/16.9	3.54 m
f/4	f/24.2	2.48 m
f/5.6	f/33.9	1.77 m
f/8	f/48.4	1.24 m

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. (NPF needs a known resolution and is omitted here.)

Focal length	500 rule
4 mm (24 mm eq.)	20.7 s
5 mm (30 mm eq.)	16.5 s
6 mm (36 mm eq.)	13.8 s
7 mm (42 mm eq.)	11.8 s
8 mm (48 mm eq.)	10.3 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 length	No stabilisation (1/equiv. focal)	With 3-stop IS	With 5-stop IBIS
4 mm	1/25 s	0.3 s	1.3 s
8 mm	1/50 s	1/6 s	0.6 s
17 mm	1/100 s	1/13 s	0.3 s
33 mm	1/200 s	1/25 s	1/6 s

Lens#

The Casio Exilim EX-Z3 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 × 6.05.

Similar cameras#

Other 1/2.5" cameras from around the same time.

Frequently asked questions#

What is the crop factor of the Casio Exilim EX-Z3?

The Casio Exilim EX-Z3 has a crop factor of 6.05× relative to 35 mm full frame (diagonal 7.1 mm vs 43.3 mm).

What size is the Casio Exilim EX-Z3 sensor?

5.7 × 4.3 mm (1/2.5"), an area of 24 mm² — 3% of full frame.

Is the Casio Exilim EX-Z3 full frame?

No — its sensor is 1/2.5", which is 35.3× smaller in area than full frame.

How long can I expose the night sky with the Casio Exilim EX-Z3?

With a 5 mm lens (30 mm equivalent) the 500 rule gives 17 s.

Casio Exilim EX-Z3