(L5) Detailed L-mount converters specs leaked

1.4x converter
Lens configuration: 7 in 4 groups (including 2 UHR lenses)
Dustproof, dripproof, -10 degrees low temperature resistance
Correspondence lens: LUMIX S PRO 70-200mm F4 O.I., 70-200mm F 2.8 (scheduled release in 2019)

2.0x converter
Lens configuration: 8 in 4 groups (including 2 UHR lenses)
Dustproof, dripproof, -10 degrees low temperature resistance
Correspondence lens: LUMIX S PRO 70-200mm F4 O.I., 70-200mm F 2.8 (scheduled release in 2019)

via Nokishita