Q-BAIHE Generic 5x Collimation Lens Focus Lens for Laser Diode music_update_2021 K&F Concept 58mm Variable Neutral

K&F Concept 58mm Variable Neutral Density Filter ND2 to ND400(9 Stop) Fader Adjustable ND Lens Filter

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Q-BAIHE Generic 5x Collimation Lens Focus Lens for Laser Diode music_update_2021 K&F Concept 58mm Variable NeutralQ BAIHE Generic 5x Collimation Lens Focus Lens for Laser Diode Features: Output power: no. Wavelength None Diameter: 5 mm. Package Content: 5 x Lens Product Features Focusing lens 5 mm