1.25" UV/IR Blocking and luminance filter

by Astro-Tech Print

What would you like to print?
(Reviews and Documents/Videos will not be printed)

Basic Product Information
Full Description
Tech Details
Supplied Accessories
Recommended Accessories
Images

Print
More product information
This Astro-Tech 1.25" sharp cutoff UV (ultraviolet) and IR (infrared) filter sharpens long exposure deep space monochrome, one-shot color, and tri-color CCD images, particularly those containing stars that are strong UV and /or IR emitters. It is very economically priced when compared with competitive filters of similar or lesser performance.

The ultraviolet and infrared regions are beyond the normal range of the human eye when the stars are observed visually with the unaided eye or through binoculars or a telescope. However, the extended sensitivity imaging chips of many CCD cameras, webcams, and DSI-type cameras can be overloaded by the stars’ UV and IR output and bloat unnaturally in CCD images. This 1.25” Astro-Tech imaging filter has a 240nm FWHM (Full-Width at Half-Maximum transmission) passband with an extremely sharp cutoff of all UV radiation below 430 nanometers and an equally sharp cutoff of all IR radiation above 670 nanometers. It passes between 92% and 98% of the visible and photographically-important light between these extremes, so that CCD images record the stars essentially as they would appear to the human eye. This makes this Astro-Tech filter an excellent choice as a luminance filter in LRGB imaging. Its sharp IR cutoff likewise makes it very useful with monochrome cameras that do not have a built-in IR filter.

The Astro-Tech filter also works to sharpen surface details in planetary CCD images. It is particularly effective at improving the contrast of Martian features. While the eye can’t see the IR radiation of sun-illuminated planetary surfaces, the sensitive imaging chips of many CCDs and webcams can be overloaded by the planet’s IR glow, blurring surface and cloud detail. This filter sharpens planetary detail by blocking the invisible IR portion of the spectrum before it can overload the imaging chip.

The filter uses high quality multi-layer ion-deposited hard dichroic interference coatings on an optical glass substrate. The filter is mounted in a standard 1.25" threaded cell and will fit any CCD camera or filter wheel that accepts 1.25" filters. The filter comes in a hard plastic protective case.

Color:
Color of the given filter.
0 - Not a color filter
Weight:
The weight of this product.
0.5 oz.
Warranty:
2 years
There are currently no Cloudy Nights reviews associated with this product

User Ratings/Reviews from our Customers (www.astronomics.com)
Overall Product Rating: AstronomicsAstronomicsAstronomicsAstronomicsAstronomics(0.00)   # of Ratings: 0   (Only registered customers can rate)

We haven't recommended any accessories for this product quite yet... check back soon or call one of our experts (1-405-364-0858).
This product does not have supplied accessories... or supplied accessories have not been assigned.
Documents
No documents have been associated with this product.
Videos
No videos have been associated with this product.
There are currently no formulas associated with this product
Astro-Tech - 1.25" UV/IR Blocking and luminance filter

Click icon(s) below & hover image above for zoom

Astro-Tech - 1.25" UV/IR Blocking and luminance filterGraph comparing the light transmission of this Astro-Tech filter compared to the best-known ~$50 imported UV/IR filter.
   · No ratings/reviews   Only registered users can submit ratings - Register Here
Our Product #: ATUVIR1
Price: $39.95  Ground shipping for this item is $8.95 - Click for more info
By adding 1 of these items to your cart your order total will be less than $100, and will ship within the 48 contiguous United States for $8.95. Add $60.05 to your order, however, and you qualify for free ground shipping (heavy items with fixed shipping, such as counterweights, excluded).
Quantity:   

 E-mail this product to a friend E-mail this product to a friend

Your Email:  
Your Friend's Email:  
Confirm Friend's Email:  

Comments:
  200 characters or less
 

An email containing a link to this product has been sent to the email address you provided.

Clear Skies!
Astronomics

 Have a question? Do you have a question about this product?
 Found a better price? Found a lower price? Click to let us know... or call 800-422-7876 before you buy.

If you’ve found a lower delivered price on this product, let us know about it below. We’ll do our best to meet or beat that price and will get back to you within one business day with our best offer. Thanks for giving us the opportunity to give you a better deal.

Your Name:  
Price:  
From Who:  
Context:  Magazine AdOnline
Website Address:  
Cut and paste the web address into the box above
Your Email:  
Confirm Email:  


We’ll do our best to meet or beat that price and will get back to you within one business day with our best offer. Thanks for giving us the opportunity to give you a better deal.

Clear skies,
Astronomics


This economical Astro-Tech 1.25" UV/IR cutoff and luminance filter sharpens CCD images, particularly those containing stars that are strong UV and /or IR emitters . . .





. . . our 34th year