Shopping Cart

Your cart is empty.

Your cart is empty.

OPTOLONG 1.25' UV/IR Cut Filter for CCD Digital Astrophotography

Free shipping on orders over $29.99

$44.00

$ 22 .99 $22.99

In Stock

About this item

  • 1. 96% transmission at 486nm (H-beta) 2.95% transmission at 496nm (OIII)
  • 3.92.5% transmission at 501nm (OIII) 4.98% transmission at 656nm (H-alpha)
  • 5. pass from 450 to 520nm and from 620nm 6.Entire Blocking of annoying wavelengths
  • 7.Ideal All-round Deep Sky filter even for small telescopes 8.Not sensitive to humidity or aging
  • 9.Scratch-resistant
  • 10. Excellent carrier material. The optical Leitungs of your telescope is not reduced by the filter in any way
  • 11. Parfocal with other Optolong filters 12.Glass thickness: 1.85mm
  • 13.Completely resistant against high humidity, scratches and aging effects
  • 14.Diffraction limited, the filter will not reduce the optical performance of your telescope
  • 15.Optolong filters are delivered in a high-quality, long lasting, filter box


OPTOLONG Astronomical filters are used worldwide by professionals and advanced amateurs because of their superior quality and our guarantee. Our filters are correctly optimized for naked eye visual observation, each object will be viewed with maximum contrast through your eyepiece. The transmission curves of the filters are designed so that you gain maximum contrast and brightness while retaining the subtlest gradations in each object. Unmatched optical quality and high efficiency hardened multi-coatings result in the sharpest and highest images possible.


Ryan
Reviewed in the United States on September 13, 2024
This filter aided in reducing star and eliminate star bloating which is good since bright star can cause that which ruins the image
George
Reviewed in the United States on July 18, 2023
Just now getting g a chance to use it in conjunction with my solar filter. We'll see how it works out. Moon is next.
Daniel Paulino
Reviewed in the United States on May 30, 2023
Buena calidad
Al-Sama
Reviewed in Mexico on April 10, 2023
Compré este filtro para mi nueva cámara SV405CC y está genial. No esperaba menos de Optolong 👌