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Home > Filters > Altair Astro Planet-Killer 685nm Premium IR Pass Filter with AR Coating

Altair Astro Planet-Killer 685nm Premium IR Pass Filter with AR Coating

Altair Astro Planet-Killer 685nm Premium IR Pass Filter with AR Coating
Altair Planet Killer Filter Test Image Moon by Robin Glover Altair Astro Planet-Killer 685nm Premium IR Pass Filter Altair Astro Planet-Killer 685nm Premium IR Pass Filter Moon WITH Altair 685nm IR Pass Planet Killer Filter Moon WITHOUT Altair 685nm IR Pass Planet Killer Filter
 
 
Price: £45.00
Incl. VAT 20% ( £7.50 )
Product code: F125IRP685CCD
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The Altair Astro Planet-Killer 685nm Premium IR Pass Filter is designed to deliver sharper lunar and planetary images with Monochrome CCD or CMOS cameras.
 
It works by reducing image distortion caused by the atmosphere by passing 685nm and longer IR wavelengths which are less affected by air currents.
 
This reduces the blurring effects of  “bad seeing” for noticeably sharper lunar, planetary or guide star images, even near the horizon. Especially good for CMOS cameras with high infra-red sensitivity.* 
 
When used as a luminance filter with planetary RGB filter sets, extremely fine detail is revealed. When imaged in the daytime lunar and planetary objects appear against a dark background. For monochrome imaging of the moon, day or night, the Planet Killer Filter is all you need! 
 
Another possible application is for auto guiding at long focal lengths, to reduce the effects of air movement on the guide star. This would theoretically produce better information tracking performance because the guide camera would no longer be "chasing" the seeing instead of the mount movements.
 
Advanced AR coatings reduce halo effects and internal reflections. 
 
Premium filter features:
• Batch-tested for consistency.
• High quality dichroic/dielectric coatings. 
• Anti-Reflection coating to reduce star-halos - stackable.
• UV/IR block for imaging.
• Ultra-flat glass by Schott Germany. 
• Precision CNC machined filter cell for strain-free mounting and freedom from tilt.
 
* such as the AR0130 sensor found in the Altair GPCAM.

Altair Astro Product Discussion ForumQuestions about Altair products?
 
Where to buy Altair Astro products:
 
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Products can be ordered online from Altair with tracked insured shipping to anywhere in the world. For large items shipping price may need to be re-quoted.

Russia orders: Please contact.

Availability: If product shows as out of stock, please click on the "Notify me when in stock" button to receive instant notification of availability. Altair Astro and iOptron reserve the right to change the product price and specification without notice. 


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