Addressing optical wavefront distortion sensitivity needs of super-resolution imaging systems, BrightLine® laser dichroic beamsplitters with λ/10 flatness are offered on 3 mm thick glass to reduce sensitivity to mounting stress in custom optical systems. Products minimize reflected wavefront distortion to maximize signal and SNR. For setups requiring maximum switching speed or minimal beam shift in transmission, 1 mm thick BrightLine® laser dichroic beamsplitters offer λ/2 flatness.