BIRUGEAR 40.5mm DSLR Digital Camera Snap on Lens Cap with Strap for Sony NEX-5T/5TL NEX-3N/3NL NEX-6/6L a5000 a5100 a6000 a6300 a6500 and E-mount 16-50mm F3.5-5.6 Len

Compatible with 40.5mm filter size Lenses:

Sony E-mount 16-50mm F3.5-5.6 (Such as Models: Sony NEX-5T NEX-5TL NEX-3N NEX-3NL NEX-6 NEX-6L a5000 a5100 a6000 a6300 a6500)

Nikon
1 NIKKOR AW 10mm f/2.8 (Such as models: Nikon 1 AW1)
1 NIKKOR AW 11-27.5mm f/3.5-5.6 (Such as models: Nikon 1 AW1)
1 NIKKOR 18.5mm f/1.8
1 NIKKOR 11-27.5mm f/3.5-5.6 (Such as model: Nikon 1 S2)
1 NIKKOR VR 10-30mm f/3.5-5.6 (Such as models: Nikon 1 J3 J2 J1 V2 V1)
1 NIKKOR VR 30-110mm f/3.8-5.6 (Such as models: Nikon 1 J3 J1 V2 V1 S1 S2)
1 NIKKOR 10mm f/2.8 (Such as models: Nikon 1 J1 V1)

Samsung 20-50mm f/3.5-5.6 ED II NX Lens (Such as Model: Samsung NX2000 NX300 NX1100 NX1000)

or Fit for Digital Camera which use 40.5mm filter size lens.