OGMA UV/IR Cut Filter 2-inch Mounted Astronomy Grade

OGMA UV IR Cut filter (3/4 front view) OGMA UV IR Cut filter (3/4 rear view) OGMA UV IR Cut filter (inside plastic box)
Price
$39.00
Description

Get sharper images from full spectrum cameras.

Get one free when you buy a cooled color camera from OGMA.

This filter is a must-have for CMOS and CCD cameras that don't have an infrared (IR) protective window above the image sensor or cameras that have been modified to become full spectrum sensitive. It is also useful as a luminance filter for monochrome cameras.

The state-of-the-art manufacturing process and the final physical characteristics, make the OGMA UV/IR Cut Filter compatible with astronomy applications. Obviously, this is also an excellent filter for general video and photography applications.

Since different wavelengths of light focus at different distances, in order to prevent blurred images while using a full spectrum sensitive camera, you will need to use either a narrow band pass filter or a UV-IR cut filter like this one.

Brand
OGMA
SKU
APFUVIR2
Return Policy
30-days refund or replacement
Categories
Astrophotography
Filters

Specifications

Diameter2 inch
ThreadM48x0.75
Physical thickness1.85mm
UV cut off< 400nm
IR cut off> 700nm
Transmission of visible light> 95%
Transmission off band< 0.1%
Surface quality60/40 (MIL-O-13830)
Surface polished1/4 wavefront
Surface parallelism< 30 seconds

 

OGMA UV/IR Cut Filter Graph

Transmission

Even though each manufactured batch differs slightly; this is a typical transmission curve of our OGMA UV IR Cut filter.

As you can see following emission lines that are important for astrophotography are passing at > 95%.

  • Hydrogen Alpha (H-Alpha): 656nm
  • Sulphur II (SII): 672nm
  • Nitrogen II (NII): 654nm and 658nm

Warranty

OGMA warrants your product to be free from defects in materials and workmanship for one year. OGMA will repair or replace a product or part which, upon inspection by OGMA, is found to be defective during one year following the date that you receive the equipment.

For specific details, read OGMA's limited warranty.