Astronomik H-Alpha MFR 12nm XT Clip-in Filter (Full Frame Mirrorless)

Astronomik H-Alpha MFR 12nm XT Clip-In Filter

• Presented in an XL clip format for Mirrorless cameras, this Astronomik H-Alpha 12 nm Filter is optimally suited for astrophotography
• Simple no-tool attachment can be accomplished using only a finger while a small hook is included to help with removal
• Made with regards to the highest quality standards in order to provide the optical performance required for deep sky imaging with Mirrorless cameras
• Allows H-Alpha light emissions to pass while blocking almost the entire remainder of the visual spectrum plus IR

• FWHM bandwidth of roughly 12 nm

• Works great for planetary nebulae and supernova remnant imaging

• Delivered with a durable filter container of excellent quality

• Made in Germany, a country noted for producing superior optics!

More About the Astronomik H-Alpha 12nm Clip-In Filter

For deep sky astrophotography with full-frame mirrorless camera models under light-polluted skies, the Astronomik H-Alpha 12 nm XL Clip Filter is ideal. Its 12 nm FWHM is optimal for all compatible cameras, enabling the use of very fast optics. F/number application range spans from 1:1.4 to 1:15. Transmission losses and chromatic distortions, something that can be a nuisance with other filters, only happen when super bright aperture ratios of 1:2 and more are used. Using this filter guarantees 90% transmission or more at H-Alpha (656nm). This filter is made to Astronomik's exacting standards. While transmission ratings may vary between each filter, you are guaranteed a transmission rating greater than 90%, with a typical transmission rating of around 96% for the 12 nm Ha. The specific T-Max will be listed on the filter case. You can rest easy knowing that every unit is thoroughly tested and guaranteed to meet Astronomik's stellar benchmark of performance!. Another asset of this 12 nm filter is the easy availability of guide stars for cameras with an incorporated autoguider.

Astronomik's H-Alpha 12 nm Filter enhances the contrast between objects, in this case between targeted objects with H-Alpha emission lines and the skyglow background. This filter also provides total suppression of emission lines from artificial sources such as mercury and sodium-vapor from street lamps, making it an excellent light pollution filter! Because of the high optical quality of the Astronomik H-Alpha 12 nm substrate, you won't be able to tell the difference between the razor-sharp stars seen with a camera or with your regular telescope.

Like all Astronomik filters, H-Alpha 12 nm filters are parfocal with all other Astronomik filters, and are delivered in a high-quality, long-lasting plastic storage case. This filter completely blocks out all unwanted wavelengths in the visible and IR parts of the spectrum. Diffraction-limited, your telescope's optical performance will not be compromised. Furthermore, this filter features a very thin substrate and is highly resistant to the effects of scratching, aging, and high humidity.

Astronomik XL Clip-In Filter System

Installation may be performed without tools using only one finger, while a small hook is included for initial help with filter removal. As soon as the filter is out far enough to grasp, you can use your fingers to take it out and place it back in its case. Imaging can begin once this filter is rested flush into place and the camera lens has been reinstalled.

Compatible Camera Bodies

• Canon EOS R
• Canon EOS R5 Mk I and II
• Canon EOS R6 Mk I, II and III
• Canon EOS R7
• Canon EOS R8
• Canon EOS RP
• Canon EOS Ra
• Nikon Z5 and Z5 Mk II
• Nikon Z6 Mk I, II and III
• Nikon Z7 Mk I and II
• Nikon Z8
• Nikon Z9
• Sony A7 Mk I, II, III, and IV
• Sony A7R Mk I, II, III, IV and V
• Sony A7S Mk I, II, and III

In most cases Clip-in Filters for cameras not listed above can be special ordered. Please email for availability and pricing.

**Please note this filter must NEVER be used for solar observing or imaging. Doing so will cause permanent damage to your camera and eyes.

***No returns are accepted if the original Astronomik package seal is broken or damaged.

***Coupon codes will not be accepted with the purchase of any Astronomik brand Clip-In Filters***

****Clip-in filters are not compatible wth the Canon RF 14mm f:1.4 RF lens unless the gel filter bracket is removed from the rear fo the lens.

Please email with any questions: info@spencerscamera.com