PENTAX Ipiece XW-23

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● The best appearance in the series achieves a wide viewing angle with a view of 85 °, and can observe nebula and star clusters. ● Adopt a new lighting system with seven groups of 5 groups that can obtain sharp star images that exceed the conventional XW series up to the field of view ● Adopts a unique multi -coating that can get an excellent transmittance on all lenses ● Realizes a highly contrast field by highly light -blocking technology ● Daily life waterproofing specification that is safe even if it gets wet with night dew Note: JIS Protection Class 4 equivalent, splash type.Cannot be used underwater- Focal Distance 23.0mm lens configuration 7 pieces of 5 groups Inside () is the distance from the rubber 20mm (12mm) Visible 85 ° Coating multi -coating Waterproof performance JIS Protection grade 4 equivalent (anti -defensive type) mounting diameter 50.8mm Length x outer diameter 125mmx76mm mass (weight) 770g Show more