2021 NEW ITEMS SHO-3nm Narrowband Filters are available
NEW ITEMS SHO-3nm Narrowband Filters will officially shipped out on 25th.Dec.2021
Pre-order of Optolong new filters - SHO3nm narrowband filters has begin.
Here is the item's description and testimonial: http://optolong.com/cms/document/detail/id/161.html
There are 2" mounted and 36mm unmounted available.
Delivery for the first shipment is 25th. December.
Kindly contact your dealers for more options.