Set of 4 LRGB 2" filters ZWO

Set of 4 LRGB 2" filters ZWO

Trichromacy is a technique that consists of photographing the same object 3 times with a black and white sensor camera through 3 color calibrated filters and then assembling the individual images to obtain the object in its true colors. The three colors used are Red (Red or R), Green (Green or G) and Blue (Blue or B), abbreviated as RGB. Each color is perfectly calibrated, so only RGB filters can be used for trichromes.

The ZWO LRGB filter set is designed for maximum contrast and extremely high color gradients, thus achieving an impressive color richness. The LRGB filter set divides the spectrum into its red, green, blue and luminance components. The OIII emission is superimposed on the blue and green filters with maximum transmission to enable high efficiency and a natural color image. The gap between the green and red filters serves to block the primary line of sodium light pollution at 589 nm and improves color balance and separation.

The LRGB filters ZWO have the same optical thickness, allowing the filter to be changed without refocusing. They also have an associated anti-IR filter to block infrared emissions.

The new ZWO 2″ LRGB filters offer good color separation, good transmission performance and are manufactured with a high quality coating.

Technical features:

• Set: LRGB (4 filters)
• Size: 2" (50.8 mm)
• Thread: M48 * 0.75
• Filter thickness: 1.85 mm
• Cell thickness: 5 mm + 2.5 mm (thread)
• The RGB color balance of the filters is almost 1: 1: 1: 1.
• Optically polished to guarantee a 1/4" wavefront
• More than 92% transmission in the pass band
• 700-1100nm infrared wavelength cutoff
• Precision locking outside the passband
• Multi-layer anti-reflection coating
• Small spectral "gap" to minimize effect of light pollution
• Increased parafocality - 1.9 +/- 0.03 mm thick

Set of 4 LRGB 2" filters ZWO