1.Each weights about 0.76-0.8g, no extra load on gimbal. Stable use for a long time flight.2.Using high quality optical glass lenses, with stable optical properties and high optical homogeneity.3.Multi-layer coating films and high transmittance.Features:1- MCUV (Ultraviolet) Filter Reduce haze and improve contrast to your video and digital images by minimizing the amount of ultraviolet (UV) light.Especially useful in areas of high altitude,snow, or beach, eliminating the undesirable blue cast.Imported optical glass, top level of transmittance.2-ND stands for Neutral Density Filter Which acts like sunglasses for you drone camera. They will darken what the camera sees so you can use a lower shutter speed so your footage looks smoother and more cinematic. They are rated by how strong (how dark) they are, the higher the number the stronger or darker they are.-The ND4 filter allows 1/4 of incoming light through, equal to a 2-stop filter,For a minor reduction in brightness to adjust shutter speed.-The ND8 filter allows 1/8 of incoming light through, equal to a 3-stop filter,For partly to mostly cloudy days or approaching sunset or after sunrise.-The ND16 filter allows 1/16 of incoming light through, equal to a 4-stop filter,For partly cloudy days or early to mid-morning, medium light.-The ND32 filter allows 1/32 of incoming light through, equal to a 5-stop filter Best for very bright, full sun days.3-PL stands for Polarizing Filter,This type of filter reduces glare and brings out better saturation and clarity in your photos and videos, especially when filming around water.4-ND+PL Filters have both in one filter,You will get the nice saturation and clarity from the PL and you will be able to control the shutter speed and exposure with the ND.Packing list:(Optional):Bundle A:MCVU Lens FilterBundle B:CPL Lens FilterBundle C:ND SET(ND8+ND16+CPL)Bundle D:ND-PL SET(ND4PL+ND8PL+ND16PL+ND32PL)Bundle E: UV-ND-CPL SET(MCUV+CPL+ND4+ND8)Bundle F: UV-ND-CPL SET(MCUV+CPL+ND4+ND8+ND16+ND32)Note:The drone not include