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Optolong L-Pro Filter 2" Nebula Filter for Astrophotography

Name: Optolong L-Pro Filter 2" Nebula Filter for Astrophotography
Brand: Optolong
SKU: OPL-LPRO2
Price: 179 EUR
Rating: 5 (1 reviews)

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

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

in 2" filter cell

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

Manufacturer: Optolong

Product number: OPL-LPRO2

EUR 179,00

incl. 19 % VAT (DE)

The VAT indicated refers to that applicable in Germany. After logging in, the VAT amount is adjusted to the applicable VAT of the stored delivery country. Therefore, the final price may vary accordingly.

excl. 6.95 € shipping costs (DE)

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rating: 5.0 of 5

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Optolong L-Pro Filter 2" Nebula Filter for Astrophotography

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

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

in 2" filter cell

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

Details..
Technical data..
In the box..
Reviews..

Optolong L-Pro Filter 2"

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 2", black anodized, laser engraved
Clear Aperture:	45 mm
Cell height:	5 mm without external thread, 7 mm with M48 external thread

Filter

Protective Box

Which side of the filter needs to face towards the telescope?

Optolong has a good explanation on their page with a check on unmounted filters. With mounted filters, it´s easy. The side with the external thread must face the camera.

Link to iOptron page: Should Optolong filters be installed in a certain orientation? (external link)
You can download the generated PDF from our own server.

Image from our customer Bert Moyaers

Our customer Bert Moyaers from Kampenhout (Belgium) took a picture of NGC 869/884 with this filter:

Object: Double cluster in Perseus (NGC 869 and NGC884)

Photographer: Bert Moyaers
Date: 11.11.2021
Telescope: TS Photon 150 f/5 (TPM6F5)
Motor fokuser: ZWO 5V EAF Advanced
Coma corrector: TS-Optics TSGPU
Filter: Optolong L-PRO 2" (OPL-LPRO2)
Camera: ZWO ASI533MC Pro
Guiding scope: TS-Optics 50 mm Guiding Scope (TSL501)
Guiding camera: ZWO ASI120MC-S
Mount: Explore Scientific EXOS2-GT with PMC-Eight
Frames: 41x180" (2h 3´)

We congratulate Bert Moyaers for the beautiful astrophoto!

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