The Optolong L-Extreme 2" Filter is a broadband light pollution dual band filter designed for nebula imaging using one-shot-color astroimaging cameras and DSLRs.
Features
Accepts wavelengths at OIII (496nm & 500nm) and H-alpha (656nm)
90% light transmission
Drastically reduces light pollution
Built-in UV/IR cut filter
7nm bandpass
2mm thick glass
Please note that the L-Extreme Filter only works with telescopes slower than F4. It will not be compatible with telescopes faster than F4 such as RASAs or Hyperstars.
The Optolong L-Extreme accepts narrow wavelengths between H-Alpha (red) and OIII (green-blue) narrow band filters, and eliminates light pollution in urban skies. Compared to the L-Enhance filter, the L-Extreme does not accept wavelengths of H-beta, which drastically reduces light pollution even further. Crafted with premium quality materials, the Optolong L-Extreme features high quality Schott monolithic optical substrate glass built into a CNC-machined filter cell.
Wavelength Spectrum
Warning: Optolong L-Extreme Filters are not suitable for solar viewing. Do not use it to view the Sun.
Recommended Accessories
ZWO 7 Position 2-inch Electronic Filter Wheel
Automate your filter swapping with an electronic filter wheel. This filter wheel accepts 7 2" filters.
ZWO Filter Drawer for T2 Connection
Swap out your 2" filter with ease with a ZWO Filter Drawer for T2 Connection. Suitable for APS-C and smaller cameras.
ZWO M54 Filter Drawer
Swap out your 2" filter with ease with a ZWO M54 Filter Drawer. Suitable for Full Frame cameras.
About Optolong
Optolong Optics is a specialist manufacturer of astronomy and astrophotography filters that are adored by astrophotographers worldwide since it was established in 1999. Particularly famous for their bandpass narrowband filters, “L-Pro” , "L-eXtreme" and "L-eNhance” which enables high quality imaging from simple one shot colour cameras, it’s hard to find a serious astrophotographer that has not longed for an Optolong filter in their tool kit.
Product Code: OPT-14802
To Australian retailers that are authorised by the Brand to sell that specific brand and product. That is, we do not price match to parallel/grey importers.
If the Competitor has that item in stock and displays it on their website
If you have a written quote from the Competitor indicating the price and availability if that information is not readily available on their website.
WE CANNOT PRICE MATCH:
Items that are not in stock at the Competitor or the price and availability is not clearly indicated
Special bulk or discount bundles, clearance products, second-hand, refurbished or display stock or exclusive member deals offered by the Competitor
Online auction and marketplaces such as eBay, Amazon Australia, or Bunnings Marketplace
International dealers or unauthorised distributors that are selling international goods direct to Australian consumers
Obvious pricing error that is significantly lower than the market average.
Please note that price matching will also include the competitor’s shipping costs to you. This means, if they charge free shipping on that approved price match, we will too!
30 Days Returns Policy
At OpticsCentral, we want you to be happy with your purchase! If you have any problems with your order within 30 days of purchase, we are happy to help you out with an Exchange or Refund.
No problem! If you would like to return an item to us for an Exchange or Refund, we are happy to do so within 30 days of purchase as long as the item is in its original condition with all of the original packaging. Simply contact our Customer Service team via the Contact Us page or call us on 1300 884 763 and we will issue you with a Return Authority for your product.
Please note that return shipping is at the expense of the customer and Refunds will exclude the original shipping fees.
*Unfortunately, we are unable to accept Change of Mind returns on Telescopes unless the packaging has not been opened.
It’s unfortunate, but sometimes products may have a manufacturing fault or get damaged in transit. Sometimes packaging errors can occur - we are human afterall! If you have any issues with your order, please contact our Customer Service team via the Contact Us page or call us on 1300 884 763 within 30 days of receiving your order and we will issue you with a Return Authority for your product.
Once assessed by our team and the item is found faulty or we have made a mistake, we are certainly happy to provide you with an Exchange or Refund.
Return shipping for Faulty or Incorrect products is FREE, and we will send out the replacement at no additional cost to you.
Please allow 4-6 weeks for your item to be returned to us and assessed. Refunds will be made or exchanges finalised during this time.
The Optolong L-Extreme 2" Filter is a broadband light pollution dual band filter designed for nebula imaging using one-shot-color astroimaging cameras and DSLRs.
Features
Accepts wavelengths at OIII (496nm & 500nm) and H-alpha (656nm)
90% light transmission
Drastically reduces light pollution
Built-in UV/IR cut filter
7nm bandpass
2mm thick glass
Please note that the L-Extreme Filter only works with telescopes slower than F4. It will not be compatible with telescopes faster than F4 such as RASAs or Hyperstars.
The Optolong L-Extreme accepts narrow wavelengths between H-Alpha (red) and OIII (green-blue) narrow band filters, and eliminates light pollution in urban skies. Compared to the L-Enhance filter, the L-Extreme does not accept wavelengths of H-beta, which drastically reduces light pollution even further. Crafted with premium quality materials, the Optolong L-Extreme features high quality Schott monolithic optical substrate glass built into a CNC-machined filter cell.
Wavelength Spectrum
Warning: Optolong L-Extreme Filters are not suitable for solar viewing. Do not use it to view the Sun.
Recommended Accessories
ZWO 7 Position 2-inch Electronic Filter Wheel
Automate your filter swapping with an electronic filter wheel. This filter wheel accepts 7 2" filters.
ZWO Filter Drawer for T2 Connection
Swap out your 2" filter with ease with a ZWO Filter Drawer for T2 Connection. Suitable for APS-C and smaller cameras.
ZWO M54 Filter Drawer
Swap out your 2" filter with ease with a ZWO M54 Filter Drawer. Suitable for Full Frame cameras.
About Optolong
Optolong Optics is a specialist manufacturer of astronomy and astrophotography filters that are adored by astrophotographers worldwide since it was established in 1999. Particularly famous for their bandpass narrowband filters, “L-Pro” , "L-eXtreme" and "L-eNhance” which enables high quality imaging from simple one shot colour cameras, it’s hard to find a serious astrophotographer that has not longed for an Optolong filter in their tool kit.
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