- Focal length: 4.0mm
- FOV: 78°
- F: F2.0
- Mount: M12 x 0.5
- Matching Chip: 1/3"
- Nearest Distance: 0.1
- Replacement 4mm Camera Board Lens for CCTV board camera
- This Camera Board Lens will provide standard field of view which is ideally suit for most installations
- Bring you closer to the action than a wide angle lens
- This Wide Angle Board Lens is easy to install, replacement lens easily threads in after removal of the previous lens
- Most people will be amazed by this 4mm Camera Board Lens and fall in love with it at their first sight
- This CCTV Camera Board Lens features 4.0mm focal length. Wide wide angle design brings you a broad field of vision
- This Wide Angle Board Lens provides an excellent quality replacement that will match the lens on your board camera
- The Wide Angle Board Lens is an excellent choice for most applications. It is easy for you to install this board camera lens in place of the original lens of most cameras
- The camera's angle of view multiply the camcorder, digital/video camera by 0.5 times, which more than doubles the angle of view of the camera
What is a wide-angle conversion lens?
- A wide-angle conversion lens is a lens that you can attach to your housing to widen your camera's field of view, increasing the amount of the scene in front of you that you can capture in a single photo. A wide-angle conversion lens gives you a wider field of view than a digital camera's built-in wide-angle setting.
Wide-angle conversion lens used experience:
- If you've looked at wide-angle photos in diving magazines, they're an impressive example of the capabilities of wide-angle: a deep sense of scale with sweeping underwater vistas. Professional photographers usually take these shots using a single-lens reflex camera with a super wide-angle lens attached. You don't need expensive equipment, though, to achieve some of the same results: a wide-angle conversion lens on your compact digital camera housing can give you a fisheye-lens-like effect with an expanded sense of scale.
Capture a Wider Area from the Same Distance
- When you come across large subjects or expansive seascapes, you want to fit as much as possible of what you see into the frame of your picture. That's when a wide-angle lens comes into its own. Not only does it pack more subject matter into your frame, but its expanded depth of field captures every inch in razor-sharp focus for more impact in your photos.
- If you find yourself looking at a wide undersea panorama but you can't move backward to fit it all in your camera's frame, then it's time for a wide-angle conversion lens. Once you add it to your housing, you can fit much more of the scene into your picture even if you're forced to shoot from the same location.
Get as Close as Possible to Shoot
- To photograph a wide area, can't you just move back further from the scene to fit it all in? That works on land. As you get further away, your distance from the subject (called the working distance) increases, effectively shrinking the subject so that it fits into the angle of view of your lens. There's a problem, though, when you're shooting underwater: the further you are from your subject, the more water you're shooting through. More water absorbs light and makes your subject hazier with poor contrast that obscures color and details. In water with low visibility (stirred up sediment or lots of plankton), getting too far back from your subject completely obscures your subject. And if you're using a strobe and you move too far back from your subject, the light from the strobe won't reach the subject.
- The solution? Get as close to your subject as possible when you're shooting with a wide-angle conversion lens. The lens lets you get closer to your subject and still fit the subject into the frame. This reduces water filtering, lets your strobe light the subject, and brings out color and details for an image that really pops. Getting close also emphasizes the foreground in your picture and adds a dramatic sense of perspective.