-
Welcome to BirdForum, the internet's largest birding community with thousands of members from all over the world. The forums are dedicated to wild birds, birding, binoculars and equipment and all that goes with it.
Please register for an account to take part in the discussions in the forum, post your pictures in the gallery and more.
porro vs reverse porro (1 Viewer)
- Thread starter SPARTACVS
- Start date
Ah, didn't expect that but it's logical.
BobinKy
Well-known member
On the other hand, the reverse porro is great for following an insect with an erratic flight, such as a butterfly or moth. Following these with a regular porro or roof, can easily give you a headache.
...Bob
Kentucky
Pinewood
New York correspondent
Hello Spartacus,
The prismatic binocular's first advantage is that it allows for a greater FOV than a galilean field glass; the second is that folds the light path, making for shorter telescopes. Zeiss received its original patent for placing the objectives farther apart than the eyepieces, providing a stereo effect. However, in the 1920's Leitz and Zeiss both put out reverse Porro binoculars of low power. Unlike opera glasses they provided a wide field of view and were supposed to make viewing theatre with painted backdrops more realistic.
Happy bird watching,
Arthur Pinewood
jaymoynihan
Corvus brachyrhynchos watcher
Among my binoculars i have 2 reverse porroprism ones, both for me are special purpose ones.
Bausch & Lomb Audubon Custom 7x26 (now called the Bushnell Elite 7x26).
Arguably (and in independent reviews) the best compact around, optically.
Pentax Papilio 8.5x21.
Use these for insects, primarily ants. focus to 18 inches. At closest focus they actually hit 10x. Outstanding (well, unique, no competition yet) binocular field magnifier. Very poor at normal viewing distances, in my experience.
Like both.
Bausch & Lomb Audubon Custom 7x26 (now called the Bushnell Elite 7x26).
Arguably (and in independent reviews) the best compact around, optically.
Pentax Papilio 8.5x21.
Use these for insects, primarily ants. focus to 18 inches. At closest focus they actually hit 10x. Outstanding (well, unique, no competition yet) binocular field magnifier. Very poor at normal viewing distances, in my experience.
Like both.
