Infrared filters, sometimes called IR filters or heat-absorbing filters, are designed to allow IR mid-infrared wavelengths while block visible light. They are often used in devices with bright incandescent light bulbs (such as slide and overhead projectors) to prevent unwanted heating.
There are also filters which are used in solid state (CCD or CMOS) video cameras to allow IR due to the high sensitivity of many camera sensors to near-infrared light. These filters typically have a blue hue to them as they also sometimes block some of the light from the shorter visible light and UV wavelengths.
This IR filter can block all visible light under 680nm, therefore let you experience some different shooting.
In which ways the infrared filter will be used?
1.Archaeology,Military,Police,Medical science,and detective work. Infrared filter allow normally invisible stains and modified items visible. 2.Plant vegetation & Landscape photography. It looks dramatically different when photographed in Infrared. 3.Photographic special effects. Infrared filters give the still and video photographer expressive and unusual effects.
In what suitable light source should I use the infrared filters?
680nm for indoor and weak Shadows use. 720nm for indoor and weak light use. 760nm for cloudy outdoor at nightfall and brightness indoor. 850nm for indoor and weak cloudy outdoor light. 950nm for outdoor and strong light,such as summer time. 1000nm for low latitudes and strong reflective light ,such as on the beach by noon time.
Package including:
77mm 680nm infrared filter x 1
We are happy to accept orders from Worldwide. Parcel will be shipped to you by Regular Airmail that generally takes 7-21 working days to deliver on your hands. Sometimes,It may take a longer time to reach Chile,France,Greece,Spain,Italy,Indian,Brazil,Argentina,South Africa,if you are buyer in these 9 countries,please aware of the long shipping time before you purchase this item. Please allow up to 48 hours preparation for shipping, although usually item send within 24 hours after payment confirmed. We will not be responsible for item loss because of wrong or undeliverable address.
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We offers a No-hassle exchange within 30days only if your goods are found to be defective by manufacturer. The faulty item will be exchanged for the same model once the return guidelines are followed: *We might ask buyer to test the item in order to eliminate improper use, buyer has responsibility to cooperate and follow the test correctly. *The item must be returned in NEW condition and with all the original manufacturers packaging, including cartons, parts and instructions manual etc. *Customer's response of cost of return shipping, while we will cover all expense of send out replacement. *Any returning must enquire us first, to send back without return ID (given by our customer service) will not be accepted. *Shipping and insurance charges are not refundable. *We does not has responsibility to response on item lost during returning. *Items found not to be defective will be returned at buyer's expense.
