Amazon.com : 58mm Variable Neutral Density NDX Filter for Canon EF-S 55-250mm f/4-5.6 is STM, : Electronics
Amazon.com : High Definition 67mm 10-Stop NDX Neutral Density Variable Filter for Canon EF 70–200mm USM Lens, Canon EF 70−300mm USM Lens, Canon EF 35mm f/2 is USM Lens & Canon EF