At f/1.8, there is a lack of resolution in the centre of the image and the contrast is clearly too low. At aperture 3.5, the definition is good in the centre of the image and OK at the edges. Although the relative drop in contrast at the edges increases, this is more than compensated for by the increase in contrast in the centre of the image...
Pentax HD FA 31mm f/1.8 Limited
Pentax K, full sizeOnly 1 item in stock at supplier
Product details
The wide-angle lens in this series is very versatile. The large aperture allows for manipulation of depth of field, which can be a valuable creative tool for both landscape and street photography. Additionally, this lens provides sharp imaging performance with natural perspective and high contrast for architectural photography. The HD PENTAX-FA 31mm F1.8 Limited reflects the atmosphere of the current situation with its neutral imaging, making it perfect for capturing snapshots as well.
Sensor compatibility | full size |
Weight | 509 g |
Focus type | Autofocus |
Lens type | Normal Lens |
Bayonet lens mount | Pentax K |
Focal length | 31 mm |
Item number | 15647600 |
Colour | Black |
Minimum focus distance | 0.30 m |
Lens type | Normal Lens |
Bayonet lens mount | Pentax K |
Aperture | 2 |
Min. aperture | 22 |
Min. focal length (exact) | 31 mm |
Max. Focal length (exact) | 31 mm |
Focal length | 31 mm |
Sensor compatibility | full size |
Number of diaphragm blades | 9 x |
Filter thread | 58 mm |
Number of lenses | 9 |
Number of lens groups | 7 |
Lens equipment | Wide angle lens |
Optical zoom | 0.16 x |
Focus type | Autofocus |
Min. aperture opening | f/22 |
Max. aperture | f/1.8 |
Aperture | f/1.8 - 22 |
Max. Focal length (exact) | 0.03 m |
Filter thread | 0.06 m |
Country of origin | Vietnam |
CO₂-Emission | |
Climate contribution |
Scope of delivery | Lens cap o-lw65b,lens mount cap k, lens case p70-140 |
Weight | 509 g |
Length | 69 mm |
Diameter | 65 mm |
Length | 14.50 cm |
Width | 10.70 cm |
Height | 9.10 cm |
Weight | 519 g |
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Reviews & Ratings
Warranty score
How often does a product of this brand in the «Lenses» category have a defect within the first 24 months?
Source: Digitec Galaxus- PentaxNot enough data
- 1.Canon0.3 %
- 2.Nikon0.4 %
- 2.Sony0.4 %
- 4.OM System0.5 %
Warranty case duration
How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: Digitec Galaxus- PentaxNot enough data
- 1.Viltrox2 days
- 2.Sigma3 days
- 2.TTArtisan3 days
- 4.Sony6 days
Return rate
How often is a product of this brand in the «Lenses» category returned?
Source: Digitec Galaxus- PentaxNot enough data
- 1.Olympus4.3 %
- 2.Canon4.9 %
- 3.Fujifilm5 %
- 4.Nikon5.1 %