Compact · 2004

HP Photosmart M407

The HP Photosmart M407 is a compact from 2004 with a 53.0 × 7.0 mm sensor measuring 53.0 × 7.0 mm and 4.1 megapixels. Its crop factor is 0.81× — wider than full frame, so a 50 mm lens frames like 40 mm. Every number below is calculated for this exact sensor.

53.0 × 7.0 mm0.81× crop4.1 MP
HP Photosmart M407 camera
Photo: Eusebius, CC BY 3.0, via Wikimedia Commons
0.81×
Crop factor
53.0×7.0 mm
Sensor size
371 mm²
Area · 43% of full frame
4.1 MP
Resolution
22.12 µm
Pixel pitch
f/33.0
Diffraction-limited aperture
2004
Release year

Specifications#

Brand
HP
Model
Photosmart M407
Camera type
Compact
Released
2004-08-28
Sensor size
53.0 × 7.0 mm
Crop factor
0.81×
Resolution
4.1 MP (2,396 × 1,766 px)
Fastest shutter
1/2,000 s
Weight
146 g (5.1 oz)
Sensor type
CCD
Storage
16 MB
Viewfinder
Optical
Focus
Autofocus (macro mode)
Metering
100-400 ISO
Exposure modes
Automatic
Shutter
0.9s lag
Flash
Built-in
Battery
2× AA batteries
Dimensions
107 mm × 53 mm × 36 mm
Lens
Fixed lens: 6-18 mm (3× optical zoom, equivalent to 34-95 mm)

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

Sensor size compared#

Medium format 44 × 33 mmFull frame (35 mm)HP Photosmart M407APS-CFour Thirds / Micro Four Thirds1" (one-inch) sensor
The HP Photosmart M407 sensor (highlighted) drawn to scale against common formats. Its area is 43% of a full-frame sensor, which collects about 1.2 stops less total light at the same exposure.

Focal length equivalents & field of view#

Multiply any focal length by 0.81 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
21 mm17 mm103.2°18.9°103.7°
23 mm19 mm98.1°17.3°98.6°
28 mm23 mm86.8°14.3°87.3°
32 mm26 mm79.3°12.5°79.7°
35 mm28 mm74.3°11.4°74.7°
45 mm36 mm61.0°8.9°61.4°
55 mm45 mm51.5°7.3°51.8°
63 mm51 mm45.6°6.4°46.0°
80 mm65 mm36.7°5.0°37.0°
90 mm73 mm32.8°4.5°33.1°
110 mm89 mm27.1°3.6°27.3°
120 mm97 mm24.9°3.3°25.1°
150 mm121 mm20.0°2.7°20.2°
180 mm146 mm16.8°2.2°16.9°
250 mm202 mm12.1°1.6°12.2°
350 mm283 mm8.7°1.1°8.7°

Depth of field table#

Total depth of field at each subject distance, using a circle of confusion of 37.1 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
26 mmf/1.84.7 cm19.4 cm81.0 cm1.93 m6.47 m638 m10.2 m
26 mmf/2.87.3 cm30.6 cm1.33 m3.46 m18.3 m∞6.54 m
26 mmf/410.5 cm44.8 cm2.13 m6.81 m∞∞4.59 m
26 mmf/821.7 cm1.05 m13.8 m∞∞∞2.31 m
53 mmf/1.81.1 cm4.5 cm18.5 cm42.2 cm1.19 m5.00 m42.2 m
53 mmf/2.81.7 cm7.0 cm28.9 cm66.1 cm1.89 m8.50 m27.1 m
53 mmf/42.4 cm10.0 cm41.5 cm95.6 cm2.80 m14.5 m19.0 m
53 mmf/84.7 cm20.2 cm85.8 cm2.07 m7.18 m∞9.53 m
90 mmf/1.80.3 cm1.5 cm6.3 cm14.4 cm40.5 cm1.64 m121 m
90 mmf/2.80.5 cm2.3 cm9.8 cm22.4 cm63.2 cm2.58 m78.1 m
90 mmf/40.8 cm3.3 cm14.0 cm32.1 cm90.6 cm3.75 m54.7 m
90 mmf/81.5 cm6.7 cm28.1 cm64.7 cm1.86 m8.36 m27.4 m
148 mmf/1.80.1 cm0.5 cm2.3 cm5.2 cm14.8 cm60.1 cm328 m
148 mmf/2.80.2 cm0.8 cm3.5 cm8.1 cm23.0 cm93.6 cm211 m
148 mmf/40.2 cm1.2 cm5.0 cm11.6 cm32.9 cm1.34 m148 m
148 mmf/80.5 cm2.3 cm10.0 cm23.2 cm66.0 cm2.72 m74.0 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 53 mm
f/1.2f/1.063.2 m
f/1.4f/1.154.2 m
f/1.8f/1.542.2 m
f/2f/1.637.9 m
f/2.8f/2.327.1 m
f/4f/3.219.0 m
f/5.6f/4.513.6 m
f/8f/6.59.53 m

Diffraction & pixel pitch#

With 22.12 µm pixels, diffraction starts to soften pixel-level detail around f/33.0. For maximum sharpness keep landscapes between f/18.1 and f/33; stopping down further trades detail for depth of field.

ApertureAiry disk diameterSpread overAt 100% view
f/2.83.8 µm0.2 pxsharp
f/45.4 µm0.2 pxsharp
f/5.67.5 µm0.3 pxsharp
f/810.7 µm0.5 pxsharp
f/1114.8 µm0.7 pxsharp
f/1621.5 µm1.0 pxsharp
f/2229.5 µm1.3 pxsharp

Maximum print sizes#

At 4.1 MP the HP Photosmart M407 produces 2,396 × 1,766 pixel images. See the 4 megapixel guide or the print size calculator.

ResolutionTypical useInchesCentimetres
300 DPIPhoto-lab quality8.0 × 5.9 in20 × 15 cm
240 DPIFine-art inkjet10.0 × 7.4 in25 × 19 cm
200 DPIWall print12.0 × 8.8 in30 × 22 cm
150 DPIPoster, viewed from 1 m+16.0 × 11.8 in41 × 30 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
17 mm (14 mm eq.)36.3 s42.7 s44.8 s47.3 s
25 mm (20 mm eq.)24.7 s29.1 s30.5 s32.1 s
30 mm (24 mm eq.)20.6 s24.2 s25.4 s26.8 s
43 mm (35 mm eq.)14.4 s16.9 s17.7 s18.7 s
62 mm (50 mm eq.)10.0 s11.7 s12.3 s13.0 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
30 mm1/25 s0.3 s1.3 s
62 mm1/50 s1/6 s0.6 s
124 mm1/100 s1/13 s0.3 s
247 mm1/200 s1/25 s1/6 s

Lens#

The HP Photosmart M407 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 × 0.81.

Frequently asked questions#

What is the crop factor of the HP Photosmart M407?

The HP Photosmart M407 has a crop factor of 0.81× relative to 35 mm full frame (diagonal 53.5 mm vs 43.3 mm).

What size is the HP Photosmart M407 sensor?

53.0 × 7.0 mm (53.0 × 7.0 mm), an area of 371 mm² — 43% of full frame.

Is the HP Photosmart M407 full frame?

No — its sensor is larger than full frame (medium format).

How many megapixels does the HP Photosmart M407 have?

4.1 megapixels (2,396 × 1,766 pixels), enough for a 8 × 6 inch print at 300 DPI.

How long can I expose the night sky with the HP Photosmart M407?

With a 25 mm lens (20 mm equivalent) the 500 rule gives 25 s and the stricter NPF rule at f/2.8 gives 30 s.

Sources & licences#

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