Description
Visual Narrowband O-III Filter – 1.25″ (BPO3125) and 2″ (BPO32)
The non plus ultra for visual deep-sky observers, especially under extremely light-polluted skies. See planetary nebulae and supernova remnants come alive with the enhanced contrast from these filters.
Among the narrowest transmission band O-III filters on the market, ideally suited for both visual use and for many imaging applications thanks to its unsurpassed contrast. No image degradation is perceptible even at the highest magnifications. Features the same ultra-hard, extremely durable vacuum-deposited dielectric coatings employed on the UHC-S filter.
The Baader Visual O-III Filter effectively blocks the entire visual spectrum with the exception of the two closely paired emission lines from doubly ionized oxygen, eliminating the annoying colored halos surrounding stars that often appear through O-III filters manufactured by means of less sophisticated coating technology. We also offer two additional versions of this filter with extended infra-red blockage for many of today’s IR sensitive CCD chips – in a 2″ mounted and in a 50.8 mm unmounted configuration for the STL series of cameras.
Transmission Curve – PDF document
Extended Transmission Curve
| Size | 1.25", 2" |
|---|
Fast Shipping and Professional Packaging
Due to our longstanding partnership with UPS FedEx DHL as well as other major international carriers, we are able to provide various shipping options. Our warehouse personnel will pack each item according to our strict requirements. Before they are shipped, your goods will be thoroughly examined and secured. Everyday, we send to thousands of clients in different countries. This is a sign of our determination to become the largest online retailer globally. The warehouses and centers for distribution are in Europe, as well as the USA.
Note that orders containing more than one item will be processed according to the specific item.
Before shipping before shipping, we'll inspect thoroughly the items you've purchased. Most orders are delivered within 48 hours. The estimated delivery time is between 3 and 7 days.
Returns
The inventory is always changing and we do not fully manage it because of the fact that many parties are involved, including our warehouse and factory. Therefore, the actual inventory could change at any time. It's possible that your order will be unable to fill when you have placed the order.
Our policy is valid for 30 days. If 30 days have gone without a trace since the purchase and we are unable to offer an exchange or refund.
In order for your item to be returned it must be in its original packaging, unopened and in the same condition as when you received it in. It must also be in its original packaging.
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