Optolong 2" L-Enhance Dual Narrowband Light Pollution Filter (H-Alpha and H-B...

Description: Optolong 2" L-Enhance Dual Narrowband Light Pollution Filter (H-Alpha and H-Beta/O-III) Product Details Brand: Optolong Material: Plastic Photo Filter Thread Size: 48 Millimeters Photo Filter Effect Type: Enhancing Water Resistance Level: Not Water Resistant Product Dimensions: 2"L x 2"W Package Dimensions: 3.5 x 2.95 x 0.71 inches Item Weight: 1.41 ounces Item model number: L-eNhance2" Date First Available: July 17, 2019 Manufacturer: Optolong Excellent Light Pollution Suppression Image in Urban Areas and Under Moonlight Take One-Shot Color Images with Superior Color Fidelity Narrowband Filtering Passes Hydrogen-Alpha, Hydrogen-Beta and Oxygen-III Can be Used with Filter Wheel, Filter Drawer or Camera Nose Piece The relentless spread of urbanization and its associated light pollution have become a growing problem for all amateurs and astro photographers. The current solutions to the problem can be expensive and might include the purchase of a monochrome camera, several types of narrowband filters and a filter wheel. L-eNhance provides an economical and practical solution for amateurs. It is a dual band-pass narrowband filter which has been designed for DSLR (digital SLR), color CMOS and CCD Astrophotography Cameras. The convenience and cost effectiveness of this filter allows amateurs to image a rich selection of astronomical images, even in bright, heavily light-polluted areas. Optolong believes the design of our L-eNhance filter is a technical innovation among filters. It effectively isolates the H-Alpha, H-Beta, and Oxygen III nebula emission lines and achieves a maximum transmission of up to 90%. The performance of this filter delivers images that superbly control the impact from light polluted skies. According to the characteristics of celestial body emission lines and the light pollution spectrum, Optolong specially designed and optimized dual-band L-eNhance filter in order to retain the prominent color of nebula RGB while blocking out most of light pollution. The Optolong L-eNhance filters have threads on one side - they can be used with filter wheels, filter drawers, focusers with a place to thread focal reducers internally (such as some Moonlite focusers) and camera nose pieces that fit into compression rings but the filter should not be threaded into the imaging train like an adapter ring with threads on both sides. Substrate: B270 Thickness: 1.85mm Tpeak: T>90% Blocking range: 300-1000nm Blocking depth: Light pollution line blocking >99% Surface quality: 60/40 Transmitted Wavefront RMS: /4 Parallelism (arcsec): 30s Payment Back to Top We accept Paypal and All Major Credit Cards. Shipping & Handling Back to Top Item will be shipped FREE standard shipping in 1 business day after payment is received. Express Shipping services are available. Tracking number will be provided. Return Policy Back to Top Items can be returned for exchange or full refund within 30 days from the date you receive your merchandise. Please contact us before starting a return request, so we can resolve any issues and provide free returns if needed. Return shipping is the responsibility of buyer unless the return is a result of our mistake (i.e., your receive the wrong item). Contact Us Back to Top If you have any questions please contact us. We will respond within 1 business day or less.

Price: 278.16 USD

Location: US

End Time: 2024-02-24T22:41:00.000Z

Shipping Cost: 0 USD