The L-enhance Filter is a Tri-band filter, perfect for deep sky nebula photography from the city as it uses tight narrowband limits - blocking out unwanted glow from the city. The relentless spread or urbanization and its associated light pollution have become a big problem for all amateur astro photographers around the world. One solution is to purchase a Mono camera but this can be expensive and might also require the purchase of several types of narrowband filters and a filter wheel.

These filters open up a whole new opportunity for fast newtonian telescopes, double-lens ED refractors or even achromats, allowing for extremely detailed and high class astronomical images even from heavy light polluted cities as it blocks out all artificial light pollution sources as it is a Tri-bandpass filter, only allowing for the wavelengths of O-III, H-Beta & H-Alpha.

L-eNhance provides an economical and practical solution for amateurs using DSLR or color CMOS and monochrome CCD cameras. The convenience and cost-effectiveness of this filter allows amateurs to take detailed astronomical images, even in bright, heavily light-polluted areas thanks to its maximum transmission lines of up to 90%. The narrow bandpass for the wavelengths of O-III, H-Beta and H-Alpha really help control the impact from light polluted skies.

L-eNhance has a multiple anti-reflective coating on the optical substrate which uses a precision coating based on ion deposition coating technology. This ensures durability and scratch resistance as well as stability on the CWL (central wavelength), which is not affected by temperature changes.

IMPORTANT WARNING: These nebula filters are NOT designed for observation of the Sun. Do not use this filter to look at the Sun as serious eye damage, blindness as well as damage to equipment may result.

Features:

• Professional photographic filter for astronomy
• Improves deep sky emission nebula photography
• Best choice for enhanced light pollution suppression
• For taking pictures also from highly light polluted areas
• Tri-band filter with high transmission for O-III, H-Beta and H-Alpha lines
• Does not require very large or extremely expensive telescopes
• Excellent results also with inexpensive newtonian telescopes, double-lens ED refractors or even achromats
• CMOS colour cameras can deliver an image quality that comes close to CCD monochrome cameras
• Balanced colour for a natural image
• Filter diameter: 1.25 inch / 31.7mm
• Connecting thread: M28,5 x 0,6mm (Eyepiece thread 1.25 inch)
• Selected optical glass material
• Spectrum: 300-1000nm
• Off-Band Blocking: > 99%
• Surface Quality: 60/40 (Refer to MIL-O-13830)
• Fine-optically polished to ensure accurate 1/4 wavefront and highest parallelism over the both surfaces
• High transmission at major nebula emission lines (i.e. H-alpha 656nm, OIII 496nm&500nm and H-beta 486nm).

Whats included:

1. L-eNhance filter (1pc)
2. Dust protection box (1pc)

IMPORTANT: Its essential that when placing an order, you include a valid 'Contact Telephone Number' for the delivery address or for the person receiving the item. This is necessary to avoid potential delays or problems with your delivery.

Shipping Disclaimer: All of our parcels are sent via a 3rd party registered courier service to ensure safe and prompt delivery. While we endeavor to ensure that all parcels are delivered within the specified time frame, 'Horizon Astronomy' can not be held responsible for delays due to adverse weather conditions or other courier/technical related issues outside of our control.