DSLR · 2005

Olympus E-300

The Olympus E-300 is a DSLR from 2005 with a Four Thirds / Micro Four Thirds sensor measuring 17.3 × 13.0 mm and 8 megapixels. Its crop factor is 2.00×, so a 50 mm lens frames like 100 mm on full frame. Every number below is calculated for this exact sensor.

Four Thirds / Micro Four Thirds2.00× crop8 MPFour Thirds
Olympus E-300 camera
Photo: Daiju Azuma, CC BY-SA 2.5, via Wikimedia Commons
2.00×
Crop factor
17.3×13.0 mm
Sensor size
225 mm²
Area · 26% of full frame
8 MP
Resolution
5.30 µm
Pixel pitch
f/7.9
Diffraction-limited aperture
2005
Release year

Specifications#

Brand
Olympus
Model
E-300
Camera type
DSLR
Released
2005-01-01
Lens mount
Four Thirds
Sensor size
17.3 × 13.0 mm (Four Thirds / Micro Four Thirds)
Crop factor
2.00×
Resolution
8 MP (3,264 × 2,448 px)
Continuous shooting
2.5 fps
Weight
624 g (22.0 oz)
Sensor
Kodak KAF-8300CE Four Thirds System FFT-CCD
Storage
CompactFlash (Type I or Type II)
Viewfinder
Optical TTL with Porro mirror
AF points / area
3 Points
Metering
ESP, Center-Weighted, Spot
Exposure modes
Manual, Shutter Priority, Aperture Priority, Program
Shutter
Unrated
Flash
Built In and Hot Shoe
Battery
Li-ion 7.2v Rechargeable
Lens
Interchangeable (Four Thirds mount); uses Four Thirds lenses from various makers, ranges from Olympus 8mm f/3.5 fisheye to Sigma 50-500mm f/4-6.3
Drive
2.5 frame/s

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

Sensor size compared#

Full frame (35 mm)APS-COlympus E-3001" (one-inch) sensor1/2.3" sensor
The Olympus E-300 sensor (highlighted) drawn to scale against common formats. Its area is 26% of a full-frame sensor, which collects about 1.9 stops less total light at the same exposure.

Focal length equivalents & field of view#

Multiply any focal length by 2.00 to get the full-frame field of view. Angles are for a rectilinear lens focused at infinity.

Lens on this cameraFull-frame equivalentHorizontalVerticalDiagonal
8 mm16 mm94.5°78.1°107.0°
10 mm20 mm81.7°66.0°94.5°
12 mm24 mm71.6°56.8°84.1°
14 mm28 mm63.4°49.8°75.4°
16 mm32 mm56.8°44.2°68.1°
18 mm36 mm51.3°39.7°62.0°
20 mm40 mm46.8°36.0°56.8°
24 mm48 mm39.6°30.3°48.5°
28 mm56 mm34.3°26.1°42.2°
35 mm70 mm27.8°21.0°34.3°
40 mm80 mm24.4°18.4°30.3°
50 mm100 mm19.6°14.8°24.4°
56 mm112 mm17.6°13.2°21.9°
70 mm140 mm14.1°10.6°17.6°
85 mm170 mm11.6°8.7°14.5°
100 mm200 mm9.9°7.4°12.3°
135 mm270 mm7.3°5.5°9.2°
200 mm400 mm5.0°3.7°6.2°
300 mm600 mm3.3°2.5°4.1°
400 mm800 mm2.5°1.9°3.1°
600 mm1200 mm1.7°1.2°2.1°

Depth of field table#

Total depth of field at each subject distance, using a circle of confusion of 15.0 µm (the 0.030 mm full-frame standard scaled by the crop factor). Detailed tables: 24 mm f/1.8, 24 mm f/2.8, 35 mm f/1.8, 35 mm f/2.8, 50 mm f/1.8, 50 mm f/2.8.

FocalAperture50.0 cm1.00 m2.00 m3.00 m5.00 m10.0 mHyperfocal
11 mmf/1.811.0 cm46.4 cm2.21 m7.21 m∞∞4.49 m
11 mmf/2.817.5 cm77.8 cm5.28 m∞∞∞2.89 m
11 mmf/425.8 cm1.29 m145 m∞∞∞2.03 m
11 mmf/863.4 cm51.7 m∞∞∞∞1.02 m
22 mmf/1.82.7 cm10.9 cm44.7 cm1.03 m3.01 m16.1 m17.9 m
22 mmf/2.84.2 cm17.1 cm70.7 cm1.66 m5.31 m69.2 m11.5 m
22 mmf/45.9 cm24.6 cm1.04 m2.56 m9.97 m∞8.09 m
22 mmf/812.0 cm51.5 cm2.58 m9.74 m∞∞4.06 m
37 mmf/1.80.9 cm3.8 cm15.5 cm35.2 cm98.8 cm4.09 m50.7 m
37 mmf/2.81.4 cm5.9 cm24.2 cm55.0 cm1.56 m6.74 m32.6 m
37 mmf/42.0 cm8.5 cm34.7 cm79.3 cm2.28 m10.8 m22.9 m
37 mmf/84.1 cm17.0 cm70.9 cm1.67 m5.37 m73.6 m11.4 m
62 mmf/1.80.3 cm1.3 cm5.4 cm12.4 cm34.7 cm1.40 m142 m
62 mmf/2.80.5 cm2.1 cm8.5 cm19.3 cm54.1 cm2.20 m91.6 m
62 mmf/40.7 cm2.9 cm12.1 cm27.6 cm77.5 cm3.18 m64.1 m
62 mmf/81.4 cm5.9 cm24.3 cm55.5 cm1.58 m6.87 m32.1 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 22 mm
f/1.2f/2.426.9 m
f/1.4f/2.823.1 m
f/1.8f/3.617.9 m
f/2f/4.016.2 m
f/2.8f/5.611.5 m
f/4f/8.08.09 m
f/5.6f/11.25.78 m
f/8f/16.04.06 m

Diffraction & pixel pitch#

With 5.30 µm pixels, diffraction starts to soften pixel-level detail around f/7.9. For maximum sharpness keep landscapes between f/4.3 and f/8; stopping down further trades detail for depth of field.

ApertureAiry disk diameterSpread overAt 100% view
f/2.83.8 µm0.7 pxsharp
f/45.4 µm1.0 pxsharp
f/5.67.5 µm1.4 pxsharp
f/810.7 µm2.0 pxslight softening
f/1114.8 µm2.8 pxslight softening
f/1621.5 µm4.1 pxvisibly soft
f/2229.5 µm5.6 pxvisibly soft

Maximum print sizes#

At 8 MP the Olympus E-300 produces 3,264 × 2,448 pixel images. See the 8 megapixel guide or the print size calculator.

ResolutionTypical useInchesCentimetres
300 DPIPhoto-lab quality10.9 × 8.2 in28 × 21 cm
240 DPIFine-art inkjet13.6 × 10.2 in35 × 26 cm
200 DPIWall print16.3 × 12.2 in41 × 31 cm
150 DPIPoster, viewed from 1 m+21.8 × 16.3 in55 × 41 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
7 mm (14 mm eq.)35.7 s31.7 s36.7 s42.7 s
10 mm (20 mm eq.)25.0 s22.2 s25.7 s29.9 s
12 mm (24 mm eq.)20.8 s18.5 s21.4 s24.9 s
18 mm (36 mm eq.)13.9 s12.3 s14.3 s16.6 s
25 mm (50 mm eq.)10.0 s8.9 s10.3 s12.0 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
12 mm1/25 s0.3 s1.3 s
25 mm1/50 s1/6 s0.6 s
50 mm1/100 s1/13 s0.3 s
100 mm1/200 s1/25 s1/6 s

Frequently asked questions#

What is the crop factor of the Olympus E-300?

The Olympus E-300 has a crop factor of 2.00× relative to 35 mm full frame (diagonal 21.6 mm vs 43.3 mm).

What size is the Olympus E-300 sensor?

17.3 × 13.0 mm (Four Thirds / Micro Four Thirds), an area of 225 mm² — 26% of full frame.

Is the Olympus E-300 full frame?

No — its sensor is Four Thirds / Micro Four Thirds, which is 3.8× smaller in area than full frame.

How many megapixels does the Olympus E-300 have?

8 megapixels (3,264 × 2,448 pixels), enough for a 11 × 8 inch print at 300 DPI.

What lens mount does the Olympus E-300 use?

The Olympus E-300 uses the Four Thirds (flange distance 38.67 mm).

How long can I expose the night sky with the Olympus E-300?

With a 10 mm lens (20 mm equivalent) the 500 rule gives 25 s and the stricter NPF rule at f/2.8 gives 26 s.

Sources & licences#

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

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