Hoya 58mm Yellow #K2 (HMC) Multi-Coated Glass Filter for Black & White Film Exell Battery S27PX An protective external lens coating

An protective external lens coating helps to repel dust

which enables the observer to control telescope using their personal computer

lighting and audio mixing boards

220 mAh lithium-ion Runtime Low: 22 h

Linear: 134

Hoya 58mm Yellow #K2 (HMC) Multi-Coated Glass Filter for Black & White Film Exell Battery S27PX An protective external lens coatingCommonly used for a noticeable increase in contrast with black and white films. Especially useful for clear contrast between blue sky with clouds and foreground. It is also suitable for landscapes and nature scenes. Multicoated to minimize reflection at the filter surfaces which reduces flare and ghosting. Filter factor is 2 (+1 stop) UPC: 024066002525 Packaging Info Package Weight 0. 1 lb Box Dimensions (LxWxH) 3. 386 x 2. 756 x 0. 472" All product