LOREO 3D Lens in a Cap 9005The 3D Lens in a Cap 9005 is a sports and portrait 3D lens. The lens has a focal length of 40mm and a stereo base of (interoaxial distance) of 90mm. This is a the version for APS-C format subframe digital 4:3 and Micro 4:3 format subframe digital SLR cameras. It works for Olympus and Panasonic 4:3 mirrorless. For full frame mirrorless we recommend our 4Depth Stereo Attachment.
Parallax Compensation3D photographers will be familiar with trying to take closeup photographs with wide image pitch 3D devices. The 3D effect depends on the parallax between left and right images, but too much parallax makes for unnatural 3D, which is difficult to fuse. A 3D lens with a 50mm stereo base is very good for 3D photographs in which the subject is 1.5 - 3 meters away (around 4.5 to 9.5 feet). At the same distance, a 90mm stereo base 3D lens would produce image pairs with excessive parallax, where left and right images are too wide apart to fuse. The 50mm stereo base lens however would not be capable of producing spectacular 3D at 5 meters or more away.
The 3D Lens in a Cap 9005 has a focus coupled Parallax Compensation system. When the lens is focused on a subject at a given distance, the image pitch is automatically adjusted within the unit itself to suit the object distance. This works from 1.5m to infinity. The adjustment of the relative positions of the image pair can be viewed in the viewfinder, or with Live View in modern digital SLR cameras. Once a user learns how to use the lens, focusing can actually be done by parallax compensation alone. When the subject appears in the same relative position in both the left and right image in the viewfinder, it will automatically be in focus.
AccessoriesThe 9005 is also equipped with a pair of 58mm filter threads in the front, which can be used for attaching converters, filters and hoods. Lightweight accessories are strongly recommended. Wide angle and tele converters should be selected with care, preferably matched to the 3D lens at purchase. Avoid using converters with too small an optical diameter at the back, as this may cause vignetting.
4:3 and Micro 4:3 subframe formatOn Olympus and Panasonic Four Thirds and Micro Four Thirds digital SLR cameras, the 2:1 FOV crop factor brings the effective focal length to 80mm on the vertical side of the image frame, making the 9005 a telephoto 3D lens.
With a pair of 1.45x converters, the effective focal length on 4:3 format units becomes 116mm. The wide image pitch (90mm) allows for excellent 3D photographs to be taken from 5 meters or more away.
LOREO 3D Lens in a Cap 9005 - 4:3 and Micro 4:3 - Specifications
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