El filtro L-Pro Astrophotography CCD es un filtro para mejorar el contraste de los objetos de cielo profundo y para amortiguar el fondo del cielo.
- Bloques UV e IR (700 - 1100 nm)
- transmisión alta en banda de paso
- mejora del balance de color para las cámaras DSLR y las cámaras Astro de color de un disparo, p. ej. Cámaras de color ASI refrigeradas o no refrigeradas por ZWO.
- alta calidad óptica
- El filtro de nebulosa L-Pro permite aproximadamente 3 veces más tiempos de exposición que sin un filtro y, por lo tanto, mejora significativamente el contraste.
These filters allow for astrophotography close to a city and deliver optimal results. Optolong L-Pro nebula filters cause a significant contrast enhancement and therefore enable longer exposure times with DSLRs, color and mono astro cameras.
The exposure time can be multiplied by a factor of 3. This means, that you are able to expose three times as long than without a filter, before the sky background becomes visible. On the contrary, the light which the nebula emits passes unhindered. This results in a significant contrast enhancement and makes nebula photography possible, where it otherwise would not, even close to cities. Galaxy and cluster photography also greatly benefits from the L-Pro.
| Substrate: | High-quality optical glass |
| Thickness: | 1.85 mm |
| Surface Treatment: | Fine-optically polished |
| Surface Polish Quality: | 60/40 (Refer to MIL-O-13830) |
| Surface Quality: | 1/4 wavefront |
| Transmission: | approx. 95% at passband |
| Cell: | Filter cell 1.25", black anodized, laser engraved |
| Clear Aperture: | 26 mm |