The B+W 43mm Close-up +2 Lens (NL2) is a close-up diopter lens which allows you to decrease the minimum focus distance on any lens, in turn increasing the effective maximum reproduction ratio of your lens. Additionally, you can combine close-up lenses to increase their strength and to fine tune your close-up settings.
The +2 diopters of this close-up lens focus at a distance of 50cm (1.6') with the lens focused at infinity. For the normal lens it is a stepless extension of its close-up range to approximately 1:4.5. On short to medium telephoto lenses it extends the NL1 close-up range seamlessly (with an 85mm lens to approx. 1:3.5 and with a 135mm lens to approx. 1:2.5).
B+W filters are constructed from high quality Schott glass for increased optical clarity and color fidelity. This filter has a single anti-reflective coating, which helps to improve light transmission to over 98% while preventing internal reflections and ghosting. Additionally, it features a brass filter ring for increased durability as well as jamming prevention.
| Type | Close-up lens/diopter |
| Size | 43 mm |
| Dioptric Strength | +2 |
| Filter Factor | N/A |
| Multi-Coated | Single coated |
| Effect | Decreases minimum focus distance on any lens |
| Construction | Schott glass |
| Front Filter Thread Size | 43 mm |
| Front Lens Cap Size | 43 mm |