Pentax DA 50mm f/1.8 50mm
Son ouverture maximale f/1.8 et son poids plume de 122g en font un objectif remarquablement lumineux et portable pour les montures Pentax K APS-C. Le revêtement SP protège la lentille frontale de la poussière et des traces tout en produisant un bokeh doux grâce à son diaphragme à 7 lamelles. Cet objectif convient parfaitement aux photographes amateurs cherchant un portraitiste abordable ou une focale fixe polyvalente pour la faible luminosité.
Aperçu
L'avis des propriétaires
L'évolution de l'avis des propriétaires dans le temps
ExclusivitéD'après la date à laquelle les clients ont rédigé leurs avis - pour voir si l'enthousiasme initial s'est confirmé.
- Q3 201595/100
Buyers praise the lens for excellent sharpness, consistent across the frame, and great value. Some note plastic build but find it robust. Minor issues: color fringing wide open, loud screw-drive AF, and no QuickShift.
- Excellent sharpness, especially from f2.8 to f8, with consistent edge performance.
- Plastic build and mount feel robust but lack premium materials; acceptable at this price.
- Autofocus is accurate but loud due to screw-drive; hunts in low light.
- No QuickShift, aperture ring, or distance markings; some color fringing wide open.
- Q4 201395/100
Buyers praised the lens as excellent value, sharp, and lightweight, ideal for amateurs and portraits. Minor noise and narrow focal length noted.
- Excellent value for money, great image quality and sharpness.
- Lightweight and good build quality, suitable for everyday use.
- 50mm focal length is narrow, better for portraits than general use.
- Autofocus is a bit loud, but not a dealbreaker.
D'après 56 avis clients datés, regroupés par trimestre civil. L'analyse par période est en anglais.
Les preuves
Performance
Specifications
Full Specifications
Optics
| Type | Prime |
| Focal Length Min | 50 |
| Focal Length Max | 50 |
| Elements | 6 |
| Groups | 5 |
| Coating | SP Coating |
Aperture
| Max Aperture | f/22 |
| Min Aperture | f/1.8 |
| Constant | Yes |
| Diaphragm Blades | 7 |
Build
| Mount | Pentax K |
| Format | APS-C |
| Weather Sealed | No |
| Weight | 0.1 kg / 0.3 lbs |
| Filter Thread | 52 |
AF & Stabilization
| AF Type | Autofocus |
| Stabilization | No |
Focus
| Min Focus Distance | 451 |
| Max Magnification | 1:6.67 |
vs Competition
| Spec | Pentax DA 50mm f/1.8 50mm | Sigma Contemporary 18-50mm f/2.8 DC DN | Tamron Di III 17-70mm f/2.8 Di III-A VC RXD | Nikon NIKKOR Z 17-28mm f/2.8 | Sony E PZ 16-50mm f/3.5-5.6 OSS | Panasonic LUMIX S S-R28200 |
|---|---|---|---|---|---|---|
| Focal Length | 50mm | 18-50mm | 17-70mm | 17-28mm | 16-50mm | 28-200mm |
| Max Aperture | f/22 | f/2.8 | f/2.8 | f/2.8 | f/3.5 | f/4 |
| Mount | Pentax K | Sony E | Sony E | Nikon Z | Sony E | L-Mount |
| Stabilization | false | false | true | false | true | true |
| Weather Sealed | false | true | true | true | true | true |
| Weight (g) | 122 | 290 | 544 | 450 | 107 | 413 |
| AF Type | Autofocus | stepping motor | RXD | Stepping Motor | Autofocus | Autofocus |
| Lens Type | prime | zoom | zoom | zoom | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Produit | AF | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | Preuve sociale | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Pentax DA 50mm f/1.8 50mm | 53.7 | 13.2 | 95 | 59.8 | 39.1 | 20.1 | 90.8 | 33.6 | 86 | 36.7 |
| Sigma Contemporary 18-50mm f/2.8 DC DN Compare | 87.6 | 80.4 | 86.5 | 90.8 | 82.5 | 82.8 | 80.5 | 78.5 | 90.1 | 36.7 |
| Tamron Di III 17-70mm f/2.8 Di III-A VC RXD Compare | 53.7 | 85.7 | 69.8 | 84.9 | 91 | 82.8 | 63.5 | 89.4 | 86 | 82.4 |
| Nikon NIKKOR Z 17-28mm f/2.8 Compare | 87.6 | 85.7 | 76 | 84.9 | 88.4 | 82.8 | 90.8 | 68 | 71.4 | 36.7 |
| Sony E PZ 16-50mm f/3.5-5.6 OSS Compare | 53.7 | 73.7 | 98.6 | 43.2 | 69 | 75.9 | 63.5 | 83.1 | 82 | 93.5 |
| Panasonic LUMIX S S-R28200 Compare | 53.7 | 76.4 | 78.3 | 73.9 | 92 | 64.6 | 22.3 | 95.4 | 77.1 | 99.5 |
