IDAS H-alpha Enhanced UV/IR Blocking Filter for ASI

ITEM #
HU-HEUIBII-Z
  • HEUIB-II) Filter is for ZWO ASI cameras with the M42 interface. 
  • 1.1 mm thickness. (This makes the camera's flange back 17.14 mm +/- 0.5 mm.)
  • ASI cameras have no IR blocker, this is your solution to block IR as well as to minimize background glow. 
  • Moves the IR and UV ends of the spectrum which are usually out of focus in refractive optics.
  • Filter fits onto the M42 interface inside the M48 flange.

 

  • Sale
  • Regular price $199.00

More on the Way in 14 - 28 Business Days

Add to Wishlist
Already have gear? Trade it in for cash or new equipment.

Accessories Added

OPT Telescope Expert

Want Help?

Ask Our Telescope Experts

1.800.483.6287

IDAS H-alpha Enhanced UV/IR Blocking Filter for ASI

The IDAS Hα-enhanced UV/IR blocking (HEUIB-II) Filter for ASI cameras:

This Hα-enhanced UV/IR blocking (HEUIB-II) Filter is for ZWO ASI cameras with the M42 interface. (APS-C or smaller sensors (except for the 2600MC sensor).

This H-alpha Enhanced UV/IR Blocking filter is designed for enhanced spectrum DSLR and one-shop color CCD astronomical cameras.  It moves the IR and UV ends of the spectrum which are usually out of focus in refractive optics. Isolating the common Ha line relative to the surrounding extreme red end of the spectrum makes it easy to bring out the faint H-alpha emission nebulosity of for astronomical imaging while retaining the background color balance of the broader bands.

Below are two comparison shots taken with the enhanced Canon 6DH (standard Canon UV/IR blocking filter vs. HEUIB-II filter) show a clear difference both in background sky color balance and contrast of H-alpha nebulosity in the extremely faint object IC1396. Note the good background color balance as shown in the histograms of the individual color channels of the HEUIB-II filtered image. Click on images to view enlargements.

Body-mounted filters for ASI cameras

  • 1.1 mm thickness
  • The required t-thread male length : 3.9 mm to 4.3 mm
  • Fully made in Japan
  • Fits ASI M42-interface cameras (APS-C or smaller sensor except 2600MCPro)

1) Image from a Canon 6DH with standard Canon UV/IR blocking filter.

2) Image from a Canon 6DH with IDAS HEUIBII filter.

Canon 6DH / std UV/IR blocking filter
Canon 6DH / IDAS HEUIB-II filter

  • 1.1 mm thickness.
  • The required t-thread male length : 3.9 mm to 4.3 mm.
  • Fully made in Japan.
  • Fits ASI M42-interface cameras (APS-C or smaller sensor except 2600MCPro).
  • The set includes 2 spacer rings for the proper spacing adjustment.

IDAS H-alpha Enhanced UV/IR Blocking Filter for ASI-spacer set

 

SPECIFICATIONS

Filter Thickness1.1 mm
Filter TypeUVIR
Size2"