Lumicon UHC Ultra High Contrast Filter - 2"
Lumicon 2" UHC (Ultra High Contrast) Filter
The original Lumicon 2" Ultra High Contrast Filter is unbeatable for revealing nebulosity. The Lumicon UHC filter passes three nebula emission lines...the two doubly ionized oxygen lines (496 and 501nm) and the H-beta line (486nm)...while blocking light pollution and sky glow. The result is superb views of the Orion, Lagoon, Swan and other extended nebulae.
To ensure that your Lumicon filter is the best we can make, the strictest quality control standards are employed throughout the production process. Each Lumicon Ultra High Contrast Filter is individually inspected and proudly inscribed with the percentage of light transmittance of the OIII and H-beta emission lines.
Customer Note: Due to the narrowband nature of the Lumicon UHC filter, it is recommended for telescopes 8" and larger in aperture.
Lumicon Product Number: LF3030
Questions & AnswersAsk a Question
is there a ring/external thread to drive into eye piece? From picture I am not sure how to install this filter
This filter has a male 48mm thread that threads into the female thread on a 2" eyepiece or diagonal barrel as well as other types of 2" nosepieces with internal filter threads. This makes the eyepiece/diagonal/accessory barrel approximately 8mm longer an
Hi! Please, can you tell me what's the shipping weight for this item? Thank you very much.
The shipping dimensions and weight are: 38" X 8" X 8" and 8 LBS (97 x 20 x 20 cm and 4 kg).
Does this plate come with safety bolts to prevent the dovetail from accidentally sliding out of the saddle?
The BT Tech dovetails do not include the safety screws, but they do have 1/4" taps at both ends to add safety screws if you want.