Mirrorless · 2023

Canon EOS R100

The Canon EOS R100 is a mirrorless from 2023 with a APS-C (Canon) sensor measuring 22.3 × 14.9 mm and 24.1 megapixels. Its crop factor is 1.61×, so a 50 mm lens frames like 81 mm on full frame. Every number below is calculated for this exact sensor.

APS-C (Canon)1.61× crop24.1 MPCanon RF
Canon EOS R100 camera
Photo: Henry Söderlund, CC BY 2.0, via Wikimedia Commons
1.61×
Crop factor
22.3×14.9 mm
Sensor size
332 mm²
Area · 38% of full frame
24.1 MP
Resolution
3.72 µm
Pixel pitch
f/5.5
Diffraction-limited aperture
2023
Release year

Specifications#

Brand
Canon
Model
EOS R100
Camera type
Mirrorless
Released
2023-06-22
Lens mount
Canon RF
Sensor size
22.3 × 14.9 mm (APS-C (Canon))
Crop factor
1.61×
Resolution
24.1 MP (6,000 × 4,000 px)
ISO range
100 – 12,800
Fastest shutter
1/4,000 s
Continuous shooting
6.5 fps
Max video resolution
4K
Weight
356 g (12.6 oz)
Sensor type
CMOS
Shutter
Electronic first curtain; Electronic
Flash
Hot shoe, built-in
Battery
LP-E17
Dimensions
116 × 86 × 69 mm
Lens
Interchangeable lens
Predecessor
Canon EOS 2000D (DSLR); Canon EOS M200 (EF-M mirrorless)
Made in
China / Japan
Launch price
US$480 (body only); US$600 (with RF-S 18-45mm f/4.5-6.3 IS STM); US$830 (with RF-S 55-210mm f/5-7.1 IS STM)
Video
4K resolution (23.98 fps)

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

Sensor size compared#

Full frame (35 mm)APS-CCanon EOS R100Four Thirds / Micro Four Thirds1" (one-inch) sensor
The Canon EOS R100 sensor (highlighted) drawn to scale against common formats. Its area is 38% of a full-frame sensor, which collects about 1.4 stops less total light at the same exposure.

Focal length equivalents & field of view#

Multiply any focal length by 1.61 to get the full-frame field of view. Angles are for a rectilinear lens focused at infinity.

Lens on this cameraFull-frame equivalentHorizontalVerticalDiagonal
8 mm13 mm108.7°85.9°118.4°
10 mm16 mm96.2°73.4°106.6°
12 mm19 mm85.8°63.7°96.4°
14 mm23 mm77.1°56.0°87.5°
16 mm26 mm69.7°49.9°79.9°
18 mm29 mm63.6°45.0°73.4°
20 mm32 mm58.3°40.9°67.7°
24 mm39 mm49.8°34.5°58.4°
28 mm45 mm43.4°29.8°51.2°
35 mm56 mm35.3°24.0°41.9°
40 mm65 mm31.2°21.1°37.1°
50 mm81 mm25.1°16.9°30.0°
56 mm90 mm22.5°15.2°26.9°
70 mm113 mm18.1°12.2°21.7°
85 mm137 mm14.9°10.0°17.9°
100 mm161 mm12.7°8.5°15.3°
135 mm218 mm9.4°6.3°11.3°
200 mm323 mm6.4°4.3°7.7°
300 mm484 mm4.3°2.8°5.1°
400 mm645 mm3.2°2.1°3.8°
600 mm968 mm2.1°1.4°2.6°
800 mm1291 mm1.6°1.1°1.9°

Depth of field table#

Total depth of field at each subject distance, using a circle of confusion of 18.6 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
14 mmf/1.88.4 cm34.7 cm1.53 m4.14 m31.0 m∞5.87 m
14 mmf/2.813.1 cm56.2 cm2.92 m12.8 m∞∞3.78 m
14 mmf/419.1 cm87.0 cm6.98 m∞∞∞2.65 m
14 mmf/842.7 cm3.40 m∞∞∞∞1.33 m
27 mmf/1.82.2 cm9.0 cm36.5 cm83.5 cm2.41 m11.6 m21.8 m
27 mmf/2.83.4 cm14.0 cm57.5 cm1.33 m4.06 m28.9 m14.0 m
27 mmf/44.8 cm20.1 cm83.9 cm2.00 m6.83 m∞9.83 m
27 mmf/89.7 cm41.3 cm1.92 m5.76 m∞∞4.93 m
46 mmf/1.80.7 cm3.0 cm12.4 cm28.1 cm78.9 cm3.23 m63.3 m
46 mmf/2.81.1 cm4.7 cm19.3 cm43.8 cm1.24 m5.21 m40.7 m
46 mmf/41.6 cm6.7 cm27.6 cm63.0 cm1.80 m7.97 m28.5 m
46 mmf/83.2 cm13.5 cm56.0 cm1.30 m3.96 m27.4 m14.3 m
76 mmf/1.80.2 cm1.1 cm4.5 cm10.2 cm28.6 cm1.15 m173 m
76 mmf/2.80.4 cm1.7 cm6.9 cm15.8 cm44.5 cm1.80 m111 m
76 mmf/40.5 cm2.4 cm9.9 cm22.6 cm63.7 cm2.60 m77.7 m
76 mmf/81.1 cm4.8 cm19.9 cm45.4 cm1.29 m5.47 m38.9 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 27 mm
f/1.2f/1.932.7 m
f/1.4f/2.328.0 m
f/1.8f/2.921.8 m
f/2f/3.219.6 m
f/2.8f/4.514.0 m
f/4f/6.59.83 m
f/5.6f/9.07.03 m
f/8f/12.94.93 m

Diffraction & pixel pitch#

With 3.72 µm pixels, diffraction starts to soften pixel-level detail around f/5.5. For maximum sharpness keep landscapes between f/3.0 and f/6; stopping down further trades detail for depth of field.

ApertureAiry disk diameterSpread overAt 100% view
f/2.83.8 µm1.0 pxsharp
f/45.4 µm1.4 pxsharp
f/5.67.5 µm2.0 pxslight softening
f/810.7 µm2.9 pxslight softening
f/1114.8 µm4.0 pxvisibly soft
f/1621.5 µm5.8 pxvisibly soft
f/2229.5 µm7.9 pxvisibly soft

Maximum print sizes#

At 24.1 MP the Canon EOS R100 produces 6,000 × 4,000 pixel images. See the 24 megapixel guide or the print size calculator.

ResolutionTypical useInchesCentimetres
300 DPIPhoto-lab quality20.0 × 13.3 in51 × 34 cm
240 DPIFine-art inkjet25.0 × 16.7 in64 × 42 cm
200 DPIWall print30.0 × 20.0 in76 × 51 cm
150 DPIPoster, viewed from 1 m+40.0 × 26.7 in102 × 68 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
9 mm (15 mm eq.)34.4 s19.4 s23.3 s27.9 s
12 mm (19 mm eq.)25.8 s14.5 s17.5 s21.0 s
15 mm (24 mm eq.)20.7 s11.6 s14.0 s16.8 s
22 mm (35 mm eq.)14.1 s7.9 s9.5 s11.4 s
31 mm (50 mm eq.)10.0 s5.6 s6.8 s8.1 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
15 mm1/25 s0.3 s1.3 s
31 mm1/50 s1/6 s0.6 s
62 mm1/100 s1/13 s0.3 s
124 mm1/200 s1/25 s1/6 s

Frequently asked questions#

What is the crop factor of the Canon EOS R100?

The Canon EOS R100 has a crop factor of 1.61× relative to 35 mm full frame (diagonal 26.8 mm vs 43.3 mm).

What size is the Canon EOS R100 sensor?

22.3 × 14.9 mm (APS-C (Canon)), an area of 332 mm² — 38% of full frame.

Is the Canon EOS R100 full frame?

No — its sensor is APS-C (Canon), which is 2.6× smaller in area than full frame.

How many megapixels does the Canon EOS R100 have?

24.1 megapixels (6,000 × 4,000 pixels), enough for a 20 × 13 inch print at 300 DPI.

What lens mount does the Canon EOS R100 use?

The Canon EOS R100 uses the Canon RF (flange distance 20.00 mm).

How long can I expose the night sky with the Canon EOS R100?

With a 12 mm lens (19 mm equivalent) the 500 rule gives 26 s and the stricter NPF rule at f/2.8 gives 17 s.

Sources & licences#

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