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Optolong 50mm unmounted L-Pro Filter Nebula Filter for Astrophotography

Name: Optolong 50mm unmounted L-Pro Filter Nebula Filter for Astrophotography
Brand: Optolong
SKU: L-PRO-50
Price: 229 EUR

The L-Pro filter improves the contrast of deep-sky objects and reduces the sky background.

Diameter 50 mm - filter thickness 2 mm

blocks UV and IR (700 - 1100 nm)

high transmission at passband

improved color balance for DSLRs and One-Shot Color Astro Cameras, e.g. ASI Color Cameras cooled or uncooled by ZWO.

high optical quality

The L-Pro Nebula filter permits roughly 3x longer exposure times than without a filter and therefore improves contrast significantly.

Manufacturer: Optolong

Product number: L-PRO-50

EUR 229,00

incl. 19 % VAT (DE)

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excl. 6.95 € shipping costs (DE)

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Optolong 50mm unmounted L-Pro Filter Nebula Filter for Astrophotography

The L-Pro filter improves the contrast of deep-sky objects and reduces the sky background.

Diameter 50 mm - filter thickness 2 mm

blocks UV and IR (700 - 1100 nm)

high transmission at passband

improved color balance for DSLRs and One-Shot Color Astro Cameras, e.g. ASI Color Cameras cooled or uncooled by ZWO.

high optical quality

The L-Pro Nebula filter permits roughly 3x longer exposure times than without a filter and therefore improves contrast significantly.

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Optolong L-Pro Nebular Filter

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.

Filter size:	50 mm diameter - 2 mm thickness
Substrate:	High-quality optical glass
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