Optolong L-Pro Filter 2" Nebula Filter for Astrophotography

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.

Astrophotographic results obtained with this filter on Astrobin

Here you can find some astrophotographs taken with this filter: Link to Astrobin

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!

Safety informations: PDF Download