Manufacturer: Optolong
Product number: L-eXtreme2

EUR 329,00


incl. 19 % VAT (DE)  
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rating: 4.5 of 5
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Optolong L-eXtreme Dualband Nebula Filter for Color Cameras
The spread of cities and the associated light pollution is a growing problem for astrophotographers. A possible solution is the use of MONO/SW cameras and narrow-band nebula filters. This is expensive and costs valuable exposure time, which is often not available.

Optolong L-eXtreme filters allow the use of color cameras such as SLR or single-shot astro cameras and thus save time and money. The filters are dual bandpass filters that have been specially developed for color cameras. The important areas where important nebulae glow, such as H-alpha and oxygen (O-III), are allowed to pass almost unhindered. The rest is blocked. The filter thus represents a real alternative to narrow-band nebula photography with MONO cameras.

Optolong L-eXtreme filters offer even more contrast than the L-eNhance. The transmission is even narrower and only H-alpha and O-III are transmitted. The result is a harder contrast for maximum detail recognition.
Filter size:2" mounted
Height of the cell:5 mm without external thread, 7 mm with M48 external thread
Substrate:high quality optical glass (Schott)
Surface:Fine-optically polished
Coating:Multiple coating
Filter type:Dual bandpass filter
Filter thickness:2 mm
Optolong filter
Plastic transport and storage 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 NGC6992/NGC6995/IC1340 with this filter:

Object: Eastern Veil Nebula (NGC6992/NGC6995/IC1340)

Photographer: Bert Moyaers
Date: 09.10.2021
Telescope: TS Photon 150 f/5 (TPM6F5)
Motor focuser: ZWO 5V EAF Advanced
Coma corrector: TS-Optics TSGPU
Filter: Optolong L-eXtreme2
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: 63x300" (5h 15´)

Congratulations on this colourful astro image!


Photography by Francois Breard
Our customer Francois Breard from Roscoff (France) (www.instagram.com/_bilko29_/, www.facebook.com/breard.fanch) has photographed the Rosette Nebula with this filter and got a nice result. The image can be enlarged by clicking on it:

Object: Rosette Nebula NGC 2237

Photographer: Francois Breard
Telescope: TS-Optics 121 mm f/5.6 Quintuplet Flatfield Apo
Filter: Optolong L-eXtreme filter
Imaging camera: ZWO ASI6200MC Pro
Off Axis Guider
Guiding camera: ZWO ASI120MM Mini
Mount: Skywatcher AZ-EQ6GT

We congratulate also this customer on the fascinating result!


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Reviews

Written by Winfried Brehler
on 2023-11-03

Top-Filter!

Written by Peter Thelen
on 2023-06-06

"Gute Verarbeitung. "

Written by Harald Becker
on 2023-03-21

"Konnte es leider noch nicht testen . Bin aber zuversichtlich, dass es funktioniert wie es soll ."

Written by IAN SKOPAN
on 2023-01-04

"Hello. I did not have enough car sky time to enjoy fully. ***"

Written by Bogdan Vladu
on 2022-08-16

"Der Filter ist sehr gut für Halfa Regionen geeignet, auch wenn viel Lichtverschmüzung vorhandet ist. Ich habe es bei der Vollmond benutzt und im Halfa Kanal könnte ich keine Gradienten festellen. Und wie immer die Lieferung war sehr schnell. "

Written by Hartmut Scholz
on 2022-07-28

"Für die Astrofotography aus Stadträte Sehr gut.Nur zu empfehlen!"

Written by Andreas Meyer
on 2022-07-15

"Ein gewaltiger Sprung für geplagte in der Stadt."

Written by Laszlo Nagyhazi
on 2022-07-10

"Filter von sehr guter Qualität, perfekt für die Nebelfotografie. Für alle Astrofotografen, die bisher noch keine Optolong-Filter verwendet haben."

Written by Franz Grapke
on 2021-09-18

"Für Nebelaufnahmen zu empfehlen. "

Written by wim engels
on 2021-09-14

"I received the filter properly, but the rest have to be tested!"