1. Wavelength range: 350-1100nm
2. Cut-off wavelength: 670nm
3. Light barrier: OD2 @ 400-660nm
4. Peak transmittance: 670nm @ T equal to 50% 673-1100nm @ T over 95
5. Surface quality: 60/40
6. Parallelism: 30 inch
7. Material: aviation aluminum 6061T6, B260
8. Thread: M28.5 x 0.6
9. Substrate thickness: 1.1mm
10. Through hole diameter: 26mm
11. Net weight: about 8g
Features:
1. Sufficiently reduce the viewing effect and enhance the contrast, can be well used for daylight infrared imaging, when used for lunar and planetary imaging, it can reduce the viewing effect and enhance the contrast
2. Multi-layer coating, scratch-resistant, center wavelength stability
3. Made of lightweight and sturdy metal and CNC machined, sandblasted, black anodized and then laser engraved
4. Filter darkens the twilight sky background for photographing the moon and planets at dawn or dusk
5. In addition to astronomical use, it can also be used for nature photography in the near infrared (requires the use of a camera sensitive to infrared above 670nm, e.g. as a modified DSLR or webcam)
6. Please note that the filters are not designed for observation purposes and do not apply to vision
ATTENTION: The availability of every product is referred in it and is analyzed below:
In stock: for the products that have at least one item in stock.
On Order: Refers to Products that aren't in stock and will be included in the next scheduled import if you proceed to your order. Shipping time of your order 7-15 working days. This time does not include the shipping time of the shipping method you have selected.
(Imports are being done every 7-15 business days).
If you want your order to come to your place directly, please choose products that are in stock and quantity lower or equal to the available one.
For orders above 80.00 € (value species VAT) we ship your order for free.
Offer applies only to shipments to Greece, does not cover expenses on delivery and not valid for Saturday shipments.
If your order is over two Kilograms (kg) then for every extra Kilogram there is a charge 1,00