Optolong OWB CCD (Original White Balance) Clip Filter for Canon EOS APS-C Cameras

Optolong OWB (Original White Balance) Clip Filter

This Optolong OWB (Original White Balance) Clip Filter has been designed for astro modified dSLR cameras (Canon EOS with APS-C sensor in this case), so that the camera can be used again for daytime photography as well. Astro modification of a dSLR means a removal of the IR-cut-off filter, so the camera becomes very sensitive in the near IR part of the spectrum. It is important for deep sky astro photography, but it also makes the camera unusable for daytime imaging as the images becomes reddish... One could get rid of this in post-processing, but why should one spend time with that if there is a simpler and much less time consuming solution; add a OWB filter and voila, your camera is back to normal.

Compatible with all APS-C sized Canon EOS cameras. Not for full frame cameras.

Image is for demonstration purposes only. Might show a similar product.

WARNING:

Optolong filters are not designed for solar observation. DO NOT LOOK AT THE SUN WITH ANY OPTOLONG FILTER as permanent eye damage will be the result.

Technical Data

• Schott substrate material
• Glass thickness 2.0 mm (1.25”/2”/36mm) and 1.00 mm Clip series
• Surface Quality: 60/40 (Refer to MIL-O-13830)
• Fine-optically polished to ensure accurate 1/4 wavefront and < 30 seconds parallelism over both surfaces

Filter Cell

• Ultra-thin filter cell minimise vignetting by maximising possible clear aperture (clear aperture is 26mm for 1.25” size and 45mm for 2” size)
• Aerometal Material
• Precise CNC Machining
• Sand Blasting Process
• Black Anodized Finish
• Extinction Treatment to Prevent Reflection
• Laser Engraving No Fading

Available Sizes

• Clip filter series (Restricted to Germany!)

Compatibility

Canon 450D Rebel XSi Yes
Canon Digital Rebel XS (digital) Yes
Canon Digital Rebel XSi Yes
Canon EOS 1000D Yes
Canon EOS 450D No
Canon EOS 500D Yes
Canon EOS Kiss F Yes
Canon EOS Kiss X2 Yes
Canon EOS Kiss X3 Yes
Canon EOS Rebel T1i Yes
Canon EOS 6D Yes
Canon EOS 60D + 60Da Yes
Canon EOS 7D Yes
Canon EOS 70D Yes
Canon EOS 50D Yes
Canon EOS 650D Yes
Canon EOS 600D Yes
Canon EOS 550D. Yes
Canon EOS 700D, Yes
Canon EOS 1100D Yes
Canon EOS 1200D Yes
Canon EOS 40D Yes
Canon EOS 30D Yes
Canon EOS 20D Yes
Canon EOS 10D Yes
Canon EOS D60 Yes
Canon EOS D30 Yes

Packaging

• Plastic PP Case
• Imported High Pressure EVA Case Lining
• Silver Cardboard Box
• High Density Sponge Carton Lining

Optical Coating

• Multi-layer anti-reflection coating
• Non-cementing optical substrate coating
• Electron-beam gun evaporation with Ion-assisted deposition coating technology for durability and resistance to scratching, as well as stability on CWL (central wavelength) no deviation affected by temperature change.
• Planetary rotation system offers precision and homogeneity of coatings ensuring high value on transmission of pass-band and Optical density of off-band. (Please note, "planetary rotation system" is a type of optical coating process and does not refer to the astronomical system describing the motion of the planets in our solar system.)