84*84*2mm,100*100*2mm,150*150*2mm or customization
2mm or custom
+/-0.02mm to +/-0.1mm
according to your requirements
By popular request, here are a couple more comparisons of astrophotos shot with and without the PNB586 glass.
How it works:
The window is made of a special type of glass called didymium glass. PureNight mounts in front of your camera lens with a standard square filter holder (sold separately).
PureNight greatly reduces transmission of yellow and orange light in the 575nm to 600nm wavelengths, the same wavelength of light that is emitted by high pressure sodium vapor lamps. Sodium vapor lamps are most commonly used on street lights and industrial lighting fixtures and so they are one of the most prevalent sources of light pollution for astrophotography.
Our filter will reduce the effect of light pollution in your astrophotography for truer colors straight out of the camera. Photos made through the PureNight will have improved contrast and reduced haze from light pollution.
Premium Optical Quality:
It is precision ground and polished and features an anti-reflective multi-coating to greatly reduce the effect of internal reflections and ghosting that plague most filters when used at night with bright light sources in the image.
100% Product Guarantee:
If you’re not satisfied with your order for any reason, contact us and we’ll make it better with a free replacement (if stock is available) or return for a refund.
Packaging & Shipping
Question: Are you a factory or trading company ? Answer: We are a factory .
Question: Where is your factory located ? How can i visit there ? Answer: Our factory is located in Haian county,Nantong City ,Jiangsu Province,China ,about 3 hours bus ride from Shanghai . All our clients,from home or abroad ,are warmly welcome to visit us !
Question: What's the material of your products ? Answer: The material is optical glass and plastic .
Question: If i place an order now ,how long would it be before i got delivery ? Answer: It would largely depend on the size of the order and the items you want .
Question:How can i get some samples ? Answer: We are honored to offer you samples .
Welcome to contact us for more details ,most competitive price for you !