SVBONY H-Alpha Filter 7nm for EOS-C Clip Narrowband Astronomy Telescope Monocular Photographic CCD Filter for DeepSky F9169D
Because H-Alpha is 656nm mainly through the high permeability of the spectrum, and 656nm spectrum of the color presented by the red-based, 300-1100nm cut-off depth to get the details of the launch nebula richer. Extremely narrow bandwidth allows only the 656nm band to pass through the filter, can effectively cut off the artificial light Na lamp and Hg lamp interference to make the transmission line through, so as to improve the nebula contrast. With CCD is better choice for deep sky photography and wide-field astrophotography.
■Optical high-precision double-sided polishing to ensure that the parallelism is higher than 30 “and high flatness 1 / 4, to ensure that does not affect the image quality of the image.
■Precision double-sided optical coating, non-two-piece glue, effectively improve the transmittance and cut-off depth.
■Electron Gun Evaporation Technology (E-Beam Gun)
■Ion source assisted coating technology (IAD), to improve the density of the film to ensure that the filter wavelength to minimize the impact of temperature caused by the temperature drift.
■High uniformity planetary wheel coating fixture to improve the uniformity of the filter wavelength
■Optical equipment professional fine sandblasting and anode treatment, the box to do extinction treatment to prevent reflection
■Laser engraving LOGO-never fades
■Metal frame, superior aviation aluminum
The SVBONY CLS EOS -C Filter is suitable the Camera Type: 60D/60DA, 7D Mark II, 80D/800D, 77D/70D/760D/750D/700D 650D/600D, 550D/500D, 400D, 100D/1100D/1200D/1300D.
■High cutoff is effective the light damage and other stray light
■Clip filter design reduces internal reflection and color cast shift
■Using Germany imported glass, using double-sided polishing processing
■For the emission line 656nm transmittance of 85% or more
■The narrow-band filter, even in areas where light pollution is heavy, and the full moon (the moon’s largest and brightest) is the same, very narrow bandwidth, which reduces the interference of the external environment, but The weather is when the haze and cloudy not possible arrive it.
■Precision CNC integrated molding
■Multi-layers anti-reflection coating
■Frame with high-quality aluminum alloy material, anodized extinction treatment
■Lined with double-layer EVA damping cotton
■Carton PP environmentally friendly materials, simple and beautiful
this Filter is not for EF-S camera Lens.
1 X SVBNOY EOS-C H-Alpha 7nm Filter
1 X PP Material Plastic Box
This Filter is not for EF-S camera Lens.
Leave a Review
We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.
Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.
Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.
We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.
|Location||*Estimated Shipping Time|
|United States||10-20 Business days|
|Canada, Europe||10-20 Business days|
|Australia, New Zealand||10-30 Business days|
|Central & South America||15-30 Business days|
Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.
For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.
For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.
If you have any other questions, please contact us and we will do our best to help you out.
All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.
Your satisfaction is our #1 priority. Therefore, if you’d like a refund you can request one no matter the reason.
If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
If you received the wrong item you can request a refund or a reshipment.
If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.
*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page
If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.
If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.
Please do not send your purchase back to us unless we authorise you to do so.