Carson don't state what the frame of these TD-042ED's is made from, which is a shame as I do wonder what they used to make them so light.

There's a lot of beautiful things that God created in this world for us to look at and I got an amazing product to do just that! The Carson VP Series 10x42 BAK4 Prism Binocular has a slightly larger ocular power and field of view resulting in a nice, wide 62.BAK4 roof prisms with multi-coated optics and phase coating supply crisp, clear, color-true observing. The next strap that comes with the Carson 3D series binoculars well padded, but possibly not quite as wide as I would have preferred. Not sure why more folks have not keyed in on these up to now, but there have been good reviews in Outside Magazine last couple years, thats how I found out about them. Established in 1990, Carson Optical began life in the basement of the founders mother's house in Long Island, where Richard Cameron imported and exported a wide array of products between the US and Japan.

Independent right diopter adjustment makes it possible to adjust the focus to allow for strength differences in each eye.To attach the adapter to the binocular you just unscrew the small cap on the front of the central pivoting point on the binoculars. They responded the next day and said the best Carson for my needs would be the VP 10x42 for less shake while hand holding. As mentioned earlier, Carson have used some excellent quality optical components and coatings on these 3D Series TD-042ED Binoculars. One star off for the cheapo bag that these binoculars come with, and for the stiff hinges and focusing dials.