visual filters for astronomical lens:
1. High transmittance; Entire blocking annoying wavelength;
2,scratch-resistant;OEM manu
Port: KUNMING
Minimum Order Quantity: 500 Piece/Pieces
Supply Ability: 10000 Piece/Pieces per Month
Payment Terms: T/T
Contact Supplier
Packaging Detail: plastic box+white foam+with logo cells
Delivery Detail: 7days
| Introduction | visual filters for telescopes are designed to improve the visibility of a variety of Deep-Sky objects by blocking out the common Mercury vapor, Sodium, and some other emission lines from man-made or natural sources which contribute to light pollution, while letting through a broad range of other more useful wavelengths. Deep-Sky Filter. |
| Substrate | B270 or Other Glass |
| Round type size | Φ25~ Φ 78 mm |
| Thickness | 1~ 4 mm |
| Surface Quality | 40/20,60/40 |
| Wavelenth | Transmission |
| 400~450nm | Tave<1% |
| 470~510nm | Tave>90% |
| 550~610nm | Taverage <1% |
| 650~700nm | T>90% |
Model No.:
Features: MC-UV Protective Glass used to reduce reflection and enhance transmission.It's idea for digital camera use.
Model No.: BG3
Features: optical purple glass
1.Clear surface
2.Short lead time
3.Required size
Model No.:
Features: MC UV lens:
Both sides Multi-coatings
Accept clients' Design.
Model No.: TY16
Features: 1.gradual color filter
2.full color filter
3.available size:25-82mm dslr lenses
Model No.: optical filter
Features: Optical Filter
1,Brand: HENGXIANG
2,Material:Optical materials
3,Surface quality: 40/20
4,Precision:N=2;N=0.5;B=40/20;C=0.01
Model No.:
Features: silicon mirror
Laser grade
Model No.:
Features: molybdenum mirror
Laser grade
Model No.: custom-made
Features: IPL filters are widely used in aesthetics.
Ours IPL filters can be with or without coating.
Model No.: varied
Features: 1) various polarizers, process according to customer's requirement.
2) guarantee good quality
Model No.: customization
Features: 1)kinds of golden glass including JB400 JB420 JB450 JB470 JB490 JB510
2)guarantee good quality
Model No.: customization
Features: 1)kinds of select absorbing glass, process according to customer's requirement
2)guarantee good quality of the product
Model No.:
Features: Molybendum mirror