OPTICSLAB
JAENESDEFRPT
Premier Plan Net
1.27 m
Dernier Plan Net
4.73 m
Profondeur de Champ
3.46 m
21% avant / 79% arrière
Distance Hyperfocale
5.98 m

Simulation des Rayons Optiques

GM FE 2.8/18 GM Zone de Netteté: 1.27m - 4.73m Disque de Bokeh 00.51.01.52.02.53.0 Distance m

Matrice Ouverture & Distance

Ouverture 1.42.02.84.05.68.01116
Premier Plan 1.55 m1.42 m1.27 m1.10 m0.93 m0.76 m0.61 m0.47 m
Dernier Plan 2.81 m3.40 m4.73 m11.37 m∞∞∞∞
PdC Totale 1.26 m1.99 m3.46 m10.28 m∞∞∞∞
Hyperfocale 11.96 m8.37 m5.98 m4.19 m2.99 m2.09 m1.52 m1.05 m

Comparateur de Bokeh & Équivalence 24×36

Système A: Ricoh GR III 18.3mm f/2.8
35mm Equiv 28.0mm f/4.28 / DoF 3.46 m
Système B: Leica Q3 28mm f/1.7
35mm Equiv 28.0mm f/1.70 / DoF 0.95 m
Metric Système A Système B
Dimensions Capteur 23.5 × 15.6 mm / 1.53× 36 × 24 mm / 1.00×
Cercle de Confusion 0.020 mm 0.030 mm
Focale Équivalente 24×36 28.0 mm 28.0 mm
Ouverture Équivalente 24×36 f/4.28 f/1.70
Pupille d’Entrée 6.54 mm 16.47 mm
Disque de Flou 0.060 mm 0.234 mm

Angle de Champ & Dimensions du Cadre

Angle Horizontal
65.4°
Largeur @ 2.0 m: 2.57 m
Angle Vertical
46.2°
Hauteur @ 2.0 m: 1.70 m
Angle Diagonal
75.2°
Diagonale @ 2.0 m: 3.08 m

Dimensions de Tirage & Analyse DPI

Définition Native: 6038 × 4008 px / 24.2 MP

Dimensions Maximales de Tirage par DPI

DPI Effectif par Format de Papier

Matériel Optique Associé Publicité — En tant que Partenaire Amazon, nous réalisons un bénéfice sur les achats remplissant les conditions requises
Boîtier Appareil Ricoh GR III 24.2 MP APS-C
Amazon ↗ Boutique
Optique & Ouverture Ricoh GR III 18mm f/2.8 18 mm f/2.8
Amazon ↗ Boutique
Location & Occasion Ricoh GR III 18mm f/2.8 Tester cette focale sur le terrain
Voir Stock →

Configurations Optiques

122
Camera Lens Sensor Focal / Stop Focus Depth of Field Hyperfocal
Sony α7 IV FE 50mm F1.4 GM Full Frame 50 mmf/1.4 3.0 m
0.53 m
59.5 m Open →
Sony α7R V FE 85mm F1.4 GM II Full Frame 85 mmf/1.4 3.2 m
0.21 m
172.0 m Open →
Sony α9 III FE 300mm F2.8 GM OSS Full Frame 300 mmf/2.8 12.0 m
0.46 m
1071.4 m Open →
Canon EOS R5 II RF 85mm F1.2L USM Full Frame 85 mmf/1.2 3.0 m
0.15 m
200.7 m Open →
Canon EOS R5 II RF 50mm F1.2L USM Full Frame 50 mmf/1.2 2.8 m
0.39 m
69.4 m Open →
Nikon Z8 NIKKOR Z 85mm f/1.2 S Full Frame 85 mmf/1.2 3.0 m
0.15 m
200.7 m Open →
Nikon Zf NIKKOR Z 40mm f/2 Full Frame 40 mmf/2.0 2.5 m
0.83 m
26.7 m Open →
Fujifilm X100VI Fujinon 23mm f/2 II APS-C 23 mmf/2.0 2.2 m
1.38 m
13.2 m Open →
Fujifilm GFX 100 II GF 55mm f/1.7 R WR Medium Format 55 mmf/1.7 2.5 m
0.46 m
46.8 m Open →
Leica Q3 Summilux 28mm f/1.7 ASPH. Full Frame 28 mmf/1.7 2.0 m
0.95 m
15.4 m Open →
Ricoh GR III GR Lens 18.3mm f/2.8 APS-C 18.3 mmf/2.8 2.0 m
3.46 m
6.0 m Open →
Hasselblad X2D 100C XCD 2,5/90V Medium Format 90 mmf/2.5 3.0 m
0.37 m
85.3 m Open →
Sony α7 IV FE 35mm F1.4 GM Full Frame 35 mmf/1.4 2.5 m
0.76 m
29.2 m Open →
Sony α7 IV FE 85mm F1.4 GM II Full Frame 85 mmf/1.4 3.5 m
0.25 m
172.0 m Open →
Sony α7 IV FE 24mm F1.4 GM Full Frame 24 mmf/1.4 2.5 m
1.74 m
13.7 m Open →
Sony α7 IV FE 24-70mm F2.8 GM II @ 50mm Full Frame 50 mmf/2.8 3.0 m
1.08 m
29.8 m Open →
Sony α7 IV FE 70-200mm F2.8 GM OSS II @ 135mm Full Frame 135 mmf/2.8 5.0 m
0.40 m
217.0 m Open →
Sony α7R V FE 50mm F1.2 GM Full Frame 50 mmf/1.2 2.8 m
0.39 m
69.4 m Open →
Sony α7R V FE 135mm F1.8 GM Full Frame 135 mmf/1.8 4.5 m
0.21 m
337.5 m Open →
Sony α7R V FE 16-35mm F2.8 GM II @ 24mm Full Frame 24 mmf/8.0 5.0 m
∞
2.4 m Open →
Sony α7R V FE 35mm F1.4 GM Full Frame 35 mmf/1.4 2.5 m
0.76 m
29.2 m Open →
Sony α7C II FE 40mm F2.5 G Full Frame 40 mmf/2.5 2.5 m
1.05 m
21.3 m Open →
Sony α7C II FE 24mm F2.8 G Full Frame 24 mmf/2.8 2.0 m
2.69 m
6.9 m Open →
Sony α7C II FE 35mm F1.8 Full Frame 35 mmf/1.8 2.5 m
0.99 m
22.7 m Open →
Sony α7C II FE 50mm F1.8 Full Frame 50 mmf/1.8 3.0 m
0.68 m
46.3 m Open →
Sony α7CR FE 35mm F1.4 GM Full Frame 35 mmf/1.4 2.5 m
0.76 m
29.2 m Open →
Sony α7CR FE 50mm F2.5 G Full Frame 50 mmf/2.5 3.0 m
0.95 m
33.3 m Open →
Sony α7S III FE 24mm F1.4 GM Full Frame 24 mmf/1.4 2.0 m
1.07 m
13.7 m Open →
Sony α7S III FE 35mm F1.4 GM Full Frame 35 mmf/1.4 2.2 m
0.58 m
29.2 m Open →
Sony α9 III FE 85mm F1.4 GM II Full Frame 85 mmf/1.4 3.5 m
0.25 m
172.0 m Open →
Sony α1 FE 50mm F1.2 GM Full Frame 50 mmf/1.2 3.0 m
0.45 m
69.4 m Open →
Sony α1 FE 135mm F1.8 GM Full Frame 135 mmf/1.8 4.5 m
0.21 m
337.5 m Open →
Sony α1 II FE 85mm F1.4 GM II Full Frame 85 mmf/1.4 3.2 m
0.21 m
172.0 m Open →
Sony α7 III FE 50mm F1.8 Full Frame 50 mmf/1.8 3.0 m
0.68 m
46.3 m Open →
Sony α6700 Sigma 23mm F1.4 DC DN APS-C 23 mmf/1.4 2.5 m
1.14 m
19.9 m Open →
Sony α6700 Sigma 56mm F1.4 DC DN APS-C 56 mmf/1.4 3.0 m
0.26 m
117.9 m Open →
Sony ZV-E10 II Sigma 16mm F1.4 DC DN APS-C 16 mmf/1.4 1.2 m
0.54 m
9.6 m Open →
Sony FX3 FE 35mm F1.4 GM Full Frame 35 mmf/1.4 2.0 m
0.48 m
29.2 m Open →
Sony RX100 VII Zeiss Vario-Sonnar T* 9.0mm 1-inch 9 mmf/2.8 2.0 m
∞
2.6 m Open →
Canon EOS R5 II RF 35mm F1.4L VCM Full Frame 35 mmf/1.4 2.5 m
0.76 m
29.2 m Open →
Canon EOS R5 II RF 28-70mm F2L USM @ 50mm Full Frame 50 mmf/2.0 3.0 m
0.76 m
41.7 m Open →
Canon EOS R5 II RF 135mm F1.8L IS USM Full Frame 135 mmf/1.8 4.5 m
0.21 m
337.5 m Open →
Canon EOS R5 RF 85mm F1.2L USM Full Frame 85 mmf/1.2 3.2 m
0.18 m
200.7 m Open →
Canon EOS R5 RF 15-35mm F2.8L IS USM @ 24mm Full Frame 24 mmf/8.0 5.0 m
∞
2.4 m Open →
Canon EOS R6 II RF 50mm F1.8 STM Full Frame 50 mmf/1.8 3.0 m
0.68 m
46.3 m Open →
Canon EOS R6 II RF 35mm F1.8 Macro IS STM Full Frame 35 mmf/1.8 2.2 m
0.76 m
22.7 m Open →
Canon EOS R6 II RF 85mm F2 Macro IS STM Full Frame 85 mmf/2.0 3.0 m
0.26 m
120.4 m Open →
Canon EOS R6 II RF 70-200mm F2.8L IS USM @ 135mm Full Frame 135 mmf/2.8 4.5 m
0.32 m
217.0 m Open →
Canon EOS R8 RF 28mm F2.8 STM Pancake Full Frame 28 mmf/2.8 2.5 m
2.94 m
9.3 m Open →
Canon EOS R8 RF 50mm F1.8 STM Full Frame 50 mmf/1.8 2.8 m
0.59 m
46.3 m Open →
Canon EOS R8 RF 35mm F1.8 Macro IS STM Full Frame 35 mmf/1.8 2.5 m
0.99 m
22.7 m Open →
Canon EOS R3 RF 85mm F1.2L USM Full Frame 85 mmf/1.2 3.5 m
0.21 m
200.7 m Open →
Canon EOS R1 RF 100-300mm F2.8L IS USM @ 200mm Full Frame 200 mmf/2.8 8.0 m
0.46 m
476.2 m Open →
Canon EOS R7 Sigma 30mm F1.4 DC DN APS-C Canon 30 mmf/1.4 2.8 m
0.77 m
35.7 m Open →
Canon EOS R7 Sigma 18-50mm F2.8 DC DN @ 35mm APS-C Canon 35 mmf/2.8 3.0 m
1.34 m
24.3 m Open →
Canon EOS R10 RF 24mm F1.8 Macro IS STM APS-C Canon 24 mmf/1.8 2.2 m
0.98 m
17.8 m Open →
Canon EOS R10 RF 50mm F1.8 STM APS-C Canon 50 mmf/1.8 3.0 m
0.40 m
77.2 m Open →
Nikon Z8 NIKKOR Z 50mm f/1.2 S Full Frame 50 mmf/1.2 2.8 m
0.39 m
69.4 m Open →
Nikon Z8 NIKKOR Z 135mm f/1.8 S Plena Full Frame 135 mmf/1.8 4.2 m
0.18 m
337.5 m Open →
Nikon Z8 NIKKOR Z 35mm f/1.4 Full Frame 35 mmf/1.4 2.5 m
0.76 m
29.2 m Open →
Nikon Z8 NIKKOR Z 20mm f/1.8 S Full Frame 20 mmf/1.8 3.0 m
8.19 m
7.4 m Open →
Nikon Z9 NIKKOR Z 85mm f/1.2 S Full Frame 85 mmf/1.2 3.2 m
0.18 m
200.7 m Open →
Nikon Z9 NIKKOR Z 135mm f/1.8 S Plena Full Frame 135 mmf/1.8 4.5 m
0.21 m
337.5 m Open →
Nikon Z9 NIKKOR Z 400mm f/2.8 TC VR S Full Frame 400 mmf/2.8 15.0 m
0.41 m
1904.8 m Open →
Nikon Z6 III NIKKOR Z 50mm f/1.8 S Full Frame 50 mmf/1.8 3.0 m
0.68 m
46.3 m Open →
Nikon Z6 III NIKKOR Z 35mm f/1.4 Full Frame 35 mmf/1.4 2.5 m
0.76 m
29.2 m Open →
Nikon Z6 III NIKKOR Z 85mm f/1.8 S Full Frame 85 mmf/1.8 3.2 m
0.26 m
133.8 m Open →
Nikon Zf NIKKOR Z 28mm f/2.8 Full Frame 28 mmf/2.8 2.5 m
2.94 m
9.3 m Open →
Nikon Zf NIKKOR Z 50mm f/1.4 Full Frame 50 mmf/1.4 2.8 m
0.46 m
59.5 m Open →
Nikon Zf Voigtländer Nokton 35mm f/1.4 Z Full Frame 35 mmf/1.4 2.4 m
0.70 m
29.2 m Open →
Nikon Zfc NIKKOR Z 28mm f/2.8 APS-C 28 mmf/2.8 2.5 m
1.70 m
14.0 m Open →
Nikon Z50 II NIKKOR Z DX 24mm f/1.7 APS-C 24 mmf/1.7 2.2 m
1.04 m
16.9 m Open →
Nikon Z50 II Sigma 56mm F1.4 DC DN Z APS-C 56 mmf/1.4 3.0 m
0.28 m
112.0 m Open →
Fujifilm X100VI Fujinon 23mm f/2 II @ f/4 APS-C 23 mmf/4.0 2.5 m
5.67 m
6.6 m Open →
Fujifilm X100VI Fujinon 23mm f/2 II @ f/8 Zone Focus APS-C 23 mmf/8.0 3.5 m
∞
3.3 m Open →
Fujifilm X-T5 XF 33mm f/1.4 R LM WR APS-C 33 mmf/1.4 2.8 m
0.71 m
38.9 m Open →
Fujifilm X-T5 XF 23mm f/1.4 R LM WR APS-C 23 mmf/1.4 2.4 m
1.10 m
18.9 m Open →
Fujifilm X-T5 XF 56mm f/1.2 R WR APS-C 56 mmf/1.2 3.0 m
0.24 m
130.7 m Open →
Fujifilm X-T5 XF 18mm f/1.4 R LM WR APS-C 18 mmf/1.4 2.2 m
1.62 m
11.6 m Open →
Fujifilm X-T5 XF 35mm f/1.4 R APS-C 35 mmf/1.4 2.5 m
0.50 m
43.8 m Open →
Fujifilm X-T5 XF 27mm f/2.8 R WR Pancake APS-C 27 mmf/2.8 2.5 m
1.86 m
13.0 m Open →
Fujifilm X-T5 XF 90mm f/2 R LM WR APS-C 90 mmf/2.0 4.0 m
0.27 m
202.5 m Open →
Fujifilm X-S20 XF 23mm f/2 R WR APS-C 23 mmf/2.0 2.5 m
1.82 m
13.2 m Open →
Fujifilm X-S20 XF 35mm f/2 R WR APS-C 35 mmf/2.0 2.8 m
0.91 m
30.6 m Open →
Fujifilm X-H2S XF 50-140mm f/2.8 R LM OIS WR @ 90mm APS-C 90 mmf/2.8 4.5 m
0.48 m
144.6 m Open →
Fujifilm X-M5 XF 27mm f/2.8 R WR Pancake APS-C 27 mmf/2.8 2.5 m
1.86 m
13.0 m Open →
Fujifilm GFX 100 II GF 110mm f/2 R LM WR Medium Format 110 mmf/2.0 3.2 m
0.22 m
159.2 m Open →
Fujifilm GFX 100 II GF 80mm f/1.7 R WR Medium Format 80 mmf/1.7 2.8 m
0.27 m
99.1 m Open →
Fujifilm GFX 100 II GF 45mm f/2.8 R WR Medium Format 45 mmf/2.8 2.8 m
1.52 m
19.0 m Open →
Fujifilm GFX 100 II GF 23mm f/4 R LM WR @ f/8 Landscape Medium Format 23 mmf/8.0 5.0 m
∞
1.7 m Open →
Fujifilm GFX 100S II GF 63mm f/2.8 R WR Medium Format 63 mmf/2.8 3.0 m
0.85 m
37.3 m Open →
Fujifilm GFX 100S II GF 110mm f/2 R LM WR Medium Format 110 mmf/2.0 3.5 m
0.27 m
159.2 m Open →
Fujifilm GFX 100S II GF 32-64mm f/4 R LM WR @ 32mm Medium Format 32 mmf/8.0 5.0 m
∞
3.4 m Open →
Leica Q3 Summilux 28mm f/1.7 @ f/8 Street Zone Full Frame 28 mmf/8.0 3.0 m
∞
3.3 m Open →
Leica Q3 43 APO-Summicron 43mm f/2 ASPH. Full Frame 43 mmf/2.0 2.5 m
0.71 m
30.8 m Open →
Leica Q3 43 APO-Summicron 43mm f/2 @ f/5.6 Full Frame 43 mmf/5.6 3.0 m
3.62 m
11.0 m Open →
Leica M11 Summilux-M 35mm f/1.4 ASPH. FLE II Full Frame 35 mmf/1.4 2.2 m
0.58 m
29.2 m Open →
Leica M11 Summilux-M 50mm f/1.4 ASPH. Full Frame 50 mmf/1.4 2.8 m
0.46 m
59.5 m Open →
Leica M11 Noctilux-M 50mm f/1.2 ASPH. Full Frame 50 mmf/1.2 2.5 m
0.31 m
69.4 m Open →
Leica M11 Summicron-M 28mm f/2 ASPH. Full Frame 28 mmf/2.0 2.5 m
1.85 m
13.1 m Open →
Leica M11 APO-Summicron-M 35mm f/2 ASPH. Full Frame 35 mmf/2.0 2.5 m
1.11 m
20.4 m Open →
Leica SL3 Summilux-SL 50mm f/1.4 ASPH. Full Frame 50 mmf/1.4 3.0 m
0.53 m
59.5 m Open →
Leica SL3 APO-Summicron-SL 90mm f/2 ASPH. Full Frame 90 mmf/2.0 3.5 m
0.31 m
135.0 m Open →
Ricoh GR III GR Lens 18.3mm @ f/8 Snap Focus 2.5m APS-C 18.3 mmf/8.0 2.5 m
∞
2.1 m Open →
Ricoh GR IIIx GR Lens 26.1mm f/2.8 APS-C 26.1 mmf/2.8 2.2 m
1.52 m
12.2 m Open →
Ricoh GR IIIx GR Lens 26.1mm @ f/8 Snap Focus 3.0m APS-C 26.1 mmf/8.0 3.0 m
∞
4.3 m Open →
Hasselblad X2D 100C XCD 2,5/55V Medium Format 55 mmf/2.5 2.5 m
0.69 m
31.8 m Open →
Hasselblad X2D 100C XCD 2,5/38V Medium Format 38 mmf/2.5 2.5 m
1.54 m
15.2 m Open →
Hasselblad X2D 100C XCD 1,9/80 Medium Format 80 mmf/1.9 2.8 m
0.31 m
88.6 m Open →
Hasselblad X2D 100C XCD 4/28P @ f/8 Landscape Medium Format 28 mmf/8.0 5.0 m
∞
2.6 m Open →
Lumix S5 II Lumix S 50mm F1.8 Full Frame 50 mmf/1.8 3.0 m
0.68 m
46.3 m Open →
Lumix S5 II Lumix S 35mm F1.8 Full Frame 35 mmf/1.8 2.5 m
0.99 m
22.7 m Open →
Lumix S5 II Lumix S 85mm F1.8 Full Frame 85 mmf/1.8 3.2 m
0.26 m
133.8 m Open →
Lumix S9 Lumix S 26mm F8 Pancake Full Frame 26 mmf/8.0 3.0 m
∞
2.8 m Open →
Lumix GH7 Leica DG Summilux 25mm f/1.4 II Micro Four Thirds 25 mmf/1.4 2.5 m
0.74 m
29.8 m Open →
Lumix GH7 Leica DG Nocticron 42.5mm f/1.2 Micro Four Thirds 42.5 mmf/1.2 3.0 m
0.31 m
100.3 m Open →
OM-1 Mark II M.Zuiko Digital ED 20mm F1.4 PRO Micro Four Thirds 20 mmf/1.4 2.5 m
1.19 m
19.0 m Open →
OM-1 Mark II M.Zuiko Digital ED 45mm F1.2 PRO Micro Four Thirds 45 mmf/1.2 3.0 m
0.28 m
112.5 m Open →
OM-1 Mark II M.Zuiko 150-400mm F4.5 TC @ 300mm Micro Four Thirds 300 mmf/4.5 15.0 m
0.58 m
1333.3 m Open →
DJI Mavic 3 Pro Hasselblad L2D-20c 12.29mm Micro Four Thirds 12.3 mmf/2.8 10.0 m
∞
3.6 m Open →
DJI Air 3S 1-inch Wide Camera 8.8mm f/1.8 1-inch 8.8 mmf/1.8 10.0 m
∞
3.9 m Open →
iPhone 16 Pro Fusion 6.765mm f/1.78 1/1.28-inch 6.8 mmf/1.8 1.5 m
6.89 m
3.2 m Open →
12 of 122 optical benchmarks

Ricoh GR III / GR Lens 18.3mm f/2.8 — 18.3mm f/2.8

Simulation optique pour Ricoh GR III (APS-C 28mm equiv) avec GR Lens 18.3mm f/2.8 à 2m : premier plan net 1.27 m, dernier plan net 4.73 m, PdC totale 3.46 m et hyperfocale 5.98 m.

Formules Optiques

Hyperfocal Distance H = f² / (N × c) + f
Near Focus Limit D_near = s(H − f) / (H + s − 2f)
Far Focus Limit D_far = s(H − f) / (H − s)
Angle of View AoV = 2 × arctan(d / 2f)

Frequently Asked Questions

Quelle est la profondeur de champ du Ricoh GR III en 18.3mm f/2.8 à 2m ?

À 2.00m, la zone de netteté s’étend de 1.27 m à 4.73 m avec une distance hyperfocale de 5.98 m.

Comment calculer la distance hyperfocale en photographie ?

La distance hyperfocale est donnée par H = f² / (N × c) + f. En faisant la mise au point sur H, toute la scène est nette de H/2 jusqu’à l’infini.

Comment comparer le bokeh entre Moyen Format, Plein Format et APS-C ?

En multipliant la focale et l’ouverture par le facteur de conversion, on obtient la focale et la profondeur de champ équivalentes en 24×36.