Telescope-Accessories-Astronomik L-2 UV-IR Blocking Filter – Nikon XL Full Frame Clip

Astronomik UV-IR Blocking Luminance Filters

For spectacular results, the Luminance channel is probably the most vital factor for image creation. To gain the greatest amount of signal possible, the filter being employed needs to have a wide spectral bandpass to realize the highest transmission possible. These two aspects combine to enable peak sensitivity and provide maximum photon counts on your pixels. Not all optical instruments, or supplemental optical elements like correctors, flatteners, or reducers have ideal color correction. So although the high transmission level of these new Astronomik Luminance filters is a terrific feature, the larger spectral band pass width of this filter can produce problems such as soft or bloated stars resulting from excess transmission of light that is not completely focused (chromatic aberration). Image processing can be challenging when this occurs. However, this detrimental effect can be reduced or even completely eradicated by having a Luminance filter with a spectral window that is slightly more narrow.

In order to provide users with all the necessary tools to gather the best possible data, Astronomik has bolstered their Luminance filter line. Now you can choose Luminance filter ideally suited for your telescope type to achieve the highest signal and sharpest image for the Luminance channel.

Your telescope’s color correction will determine whether you should use a filter with a wider spectral window for the Luminance channel. The L1 features the widest spectral window, while the L3 has the narrowest. The L2 is roughly the same as the current Astronomik L-Filter.

For optical systems that are totally free of chromatic aberration, the L1 filter is the best option. When working with most optical systems using a corrector, flattener, or reducer in the optical train for common use, the L2 is your choice. Lastly, for users with refractors that feature less than perfect color correction, the L3 filter works best. Also, the L3 can combine with Astronomik’s new Deep-Sky RGB filters to lessen the bluish halo effect around stars.

The transmission curve characteristics and coatings on the new Luminance filters have been designed and engineered in such a way that no halos or reflections will be visible. Even with bright stars in the field of view you will be able to reveal the faintest structures in galaxies or nebulae.

Like all Astronomik Filters, the new Luminance filters are made using an extremely durable and scratch resistant coating, deposited on the finest polished optical substrate, which is free of any striae or internal strains. All substrates are made to exactly the same thickness, so all Astronomik filters are parfocal. Learn more about the Astronomik XL Clip filter for Nikon full frame cameras in the comprehensive video below!

Astronomik Nikon XL Full Frame UV-IR Blocking Filter Highlights

• Fitting securely and comfortably in the camera, this filter can be attached and detached using only your finger, no tools required!

• Cameras using this filter do not need to be modified

• Parfocal with all available Astronomik filters

• Offers total protection from the effects of scratching, aging, and high humidity

• Diffraction limited, this filter will not lessen your telescope’s optical efficiency

• All Astronomik filters are delivered with a long-lasting, superior quality plastic storage case

• Made in Germany, a country known for producing high caliber optics!

Astronomik Nikon XL Full Frame Clip Filter System Compatibility

• The Nikon XL-Clip Filter have been successfully tested with the Nikon D750, D780, D800, D810, and D850. All manual lenses and T-adapters work fine!

• Nikon full frame cameras that are not listed above have not been tested yet.

• The Nikon XL Clip Filter will not work with cameras with APS-C sized sensors or with the new mirrorless models.