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Optolong L-Pro Broadband Light Pollution Filter Nikon Full Frame

Optolong L-Pro Broadband Light Pollution Filter Nikon Full Frame
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Price:  £199.00
List Price:  £209.00
Saving Of:  £10.00
(Inc. 20% VAT)Earn 199 Loyalty Points
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Model:  OLPRONFF
Brand:  Optolong

Availability:  

  

Generally In Stock, Please Confirm Before Ordering

2 Year Warranty On All New Items



The Optolong L-Pro (L-Professional) filter is designed to provide maximum luminosity of the spectrum other than those areas caused by light pollution...Designed for slightly light polluted, suburban and rural areas where there is light pollution, but not severe.

It improves the visibility of various deepsky objects by selectively reducing the transmission of wavelengths of light pollutants, specifically those produced by artificial lightings including mercury vapor lamps, both high & low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow). As this filter is highly transparent in main nebula emission lines at OIII (496nm and 500nm), H-beta (486nm), NII (654nm and 658nm), H-alpha (656nm) as well as SII (672nm), the filter is suitable for enhancing the contrast and details for both visual and photograghic purpose at sub-rural area with heavy light pollution.
Unlike other light pollution filter UHC and CLS, L-Pro is multi-bandpass filter which offers better color balance by maximizing the transmission band. The balanced transmission allows astrophotos to be taken with minimal color cast to broadband emission objects such as galaxies, reflection nebulae and globular star clusters. L-Pro is the best choice for light pollution suppression.

By providing maximum luminosity it reduces exposure time that is an important factor in deep sky imaging.

Compatible with the following FULL FRAME Nikon cameras: D600 / D610 / D700 / D750 / D800 / D800E / D810 / D810A / DF

Main Use and Performance
Suitable for visual observation and astrophotography. The optolong L-Pro filter has a very low transmission reduction rate against continuous spectrum space objects, and thus is quite effective in suppressing light pollution sources when shooting galaxies, reflection nebulae and globular star clusters. The same holds true for visual star observations. The L-Pro filter alone can suppress infrared wavelength, and thus can be used at ease for “L” (luminosity) image shootings with CCD cameras. Please note that light pollution filters do not completely eliminate the effects of light pollution and definitely do not increase the object’s brightness, however they increase the contrast between nebula and night sky by making the background darker.

WARNING:

Optolong filters are not designed for solar observation. DO NOT LOOK AT THE SUN WITH ANY OPTOLONG FILTER as permanent eye damage will be the result.

Technical Data
Schott substrate material
Glass thickness 2.0 mm (1.25”/2”/77mm) and 1.0 mm (Clip series)
Surface Quality: 60/40 (Refer to MIL-O-13830)
Fine-optically polished to ensure accurate 1/4 wavefront and < 30 seconds parallelism over both surfaces
90% transmission of main nebula emission lines (i.e. Ha 656nm, OIII 496nm & 500nm, SII 672nm and H-beta 486nm).
Precision transmission of off-band, specifically the major emission lines of artificial light pollution (i.e. Na 589nm, Hg 435nm and 578nm).

Filter Cell
Ultra-thin filter cell minimise vignetting by maximising possible clear aperture (clear aperture is 26mm for 1.25” size and 45mm for 2” size)
Aerometal Material
Precise CNC Machining
Sand Blasting Process
Black Anodized Finish
Extinction Treatment to Prevent Reflection
Laser Engraving No Fading

Available Sizes
Standard 1.25” & 2”
Round 77mm Unmounted
EOS APS-C
EOS Full Frame
Nikon Full Frame

Compatibility
This filter is compatible with the following FULL FRAME Nikon cameras: D600 / D610 / D700 / D750 / D800 / D800E / D810 / D810A / DF

Packaging
Plastic PP Case
Imported High Pressure EVA Case Lining
Silver Cardboard Box
High Density Sponge Carton Lining

Optical Coating
Multi-layer anti-reflection coating
Non-cementing optical substrate coating
Electron-beam gun evaporation with Ion-assisted deposition coating technology for durability and resistance to scratching, as well as stability on CWL (central wavelength) no deviation affected by temperature change.
Planetary rotation system offers precision and homogeneity of coatings ensuring high value on transmission of pass-band and Optical density of off-band. (Please note, "planetary rotation system" is a type of optical coating process and does not refer to the astronomical system describing the motion of the planets in our solar system.)

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Some items that are showing as in stock are in stock at our holding warehouses, not at the shop. To double check the stock levels at the shop, please contact us on 01909774369 or sales@rothervalleyoptics.co.uk.

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Please note that if you are wanting to take advantage of our Saturday and Sunday timed services or next day pre 12 or pre 10:30 services, you MUST check that the stock is here at the shop before placing orders. Also, orders using the Saturday and Sunday services must be placed before 2pm the previous working day. Also, please remember to check that the stock is here at the shop before placing orders. If the stock is not at the shop, we won't be able to ship on any of the timed services. 

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Even if you collect most of your items from our shop, you can still order via the website and select the "shop collection" delivery option. Then you can come to our shop, collect your item and still get your points!

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So happy shopping and if you have any questions about the scheme or any other queries, please get in touch.

Rother Valley Optics

01909774369
sales@rothervalleyoptics.co.uk

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Please get in touch with us today to find out if you're applicable.

You must be over 18 years to apply, live in the UK, have a valid UK bank account and not be bankrupt. Your credit file will be searched on application to see if you are eligible.

Rother Valley Optics Ltd is registered in England and Wales 04762707. Registered Office: 21 Station Road, Kiveton Park, Rotherham, S26 6QP. Rother Valley Optics Ltd acts as a credit broker only. Rother Valley Optics Ltd are authorised and regulated by the Financial Conducts Authority. Credit provided subject to age and status..

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- - - Rother Valley Optics Ltd

01909 774 369
sales@rothervalleyoptics.co.uk