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Binoculars
What is the technique for hanging two binoculars with straps
from the same binnacle? [1 pt] Name the two most characteristics to look for when shopping for binoculars? [1 point each] |
Binoculars
Name the two most characteristics to look for when shopping
for binoculars? [1 point each] Watch everyone get this wrong. RB 35s5 NY |
Binoculars
Capt. Rob wrote: Name the two most characteristics to look for when shopping for binoculars? [1 point each] The NAVY issue stamp, and quaility optics. Joe Watch everyone get this wrong. RB 35s5 NY |
Binoculars
"Capt. Rob" wrote in message oups.com... Name the two most characteristics to look for when shopping for binoculars? [1 point each] Watch everyone get this wrong. Oh... you mean like some people might choose magnification and field of view over lens diameter and depth of field? Personally.... I believe quality and suitability are my primary guiding factors. Then again... what do I know? CM- |
Binoculars
Actually, and Bart will probably have to change his POV on this as I'm 100% correct, the most important factor for choosing ANY binocular set is inter-ocular distances. This will determine if you can use them AT ALL. No other aspect of a given optical design matters if you cannot use both eyes. Steiner has several units that are not compatible with all users. RB 35s5 NY |
Binoculars
"Bart" wrote in message ups.com... What is the technique for hanging two binoculars with straps from the same binnacle? [1 pt] Name the two most characteristics to look for when shopping for binoculars? [1 point each] 'On Sale' and free shipping. Scotty |
Binoculars
Bart wrote:
What is the technique for hanging two binoculars with straps from the same binnacle? [1 pt] Use the Straps? Name the two most characteristics to look for when shopping for binoculars? [1 point each] This is going to depend on your intendended use. But the first thing is probably to check if they have adequately sized prisms, chances are if the manufacturer skimped on these the rest of the build quality will be poor. You can check prism size by holding the binoculars up in front of your eyes at nearly arms length and look through the objective lens at a a faily bright uniform source (like the sky or a a white wall, NOT THE SUN). If you see what appears a bright square in a darker circle in each objective the prisms are too small, the circle should be uniform if the prisms are adequately sized. Cheers Marty |
Binoculars
"Capt. Rob" wrote in message oups.com... Actually, and Bart will probably have to change his POV on this as I'm 100% correct, the most important factor for choosing ANY binocular set is inter-ocular distances. This will determine if you can use them AT ALL. No other aspect of a given optical design matters if you cannot use both eyes. Steiner has several units that are not compatible with all users. That's because you have an ape-like skull and your eyes are set close together with a large protruding brow. |
Binoculars
"Joe" wrote in message ups.com... Capt. Rob wrote: Name the two most characteristics to look for when shopping for binoculars? [1 point each] The NAVY issue stamp, and quaility optics. Joe The Navy had good binoculars. |
Binoculars
"Bart" wrote in message ups.com... What is the technique for hanging two binoculars with straps from the same binnacle? [1 pt] Hang them from the navigator's balls. (Quadrantial spheres for the uniniated). Name the two most characteristics to look for when shopping for binoculars? [1 point each] Lens diameter and power. Too powerful you can't hold them steady. Lens diameter indicates light gathering capability. Binoculars are most essential in low light conditions. During the day they are mere sight seeing gimmicks. The distance to the horizon is so short in sailboats and, in general, the visibility from the cockpit is so impeded by those big white sails that day use of binoculars is silly. Low light conditions are where binoculars become useful. You aren't going to hit something a mile away in a sailboat, it takes a good part of an hour to get that far. However in dark conditions the binoculars gather much more light than the eye. Sailboats, thankfully are slow otherwise they would be a real hazard to navigation. |
Binoculars
"Capt. Rob" wrote in message oups.com... Actually, and Bart will probably have to change his POV on this as I'm 100% correct, the most important factor for choosing ANY binocular set is inter-ocular distances. This will determine if you can use them AT ALL. No other aspect of a given optical design matters if you cannot use both eyes. Steiner has several units that are not compatible with all users. What if the distance is adjustable... like on most binoculars. I think they invented that about the same time they came up with adjustable dioptres. CM- |
Binoculars
"Gilligan" wrote in message . .. visibility from the cockpit is so impeded by those big white sails that day use of binoculars is silly. And those ''big white sails'' become transparent at night? Scotty |
Binoculars
"Capt. Rob" wrote:
Actually, and Bart will probably have to change his POV on this as I'm 100% correct, the most important factor for choosing ANY binocular set is inter-ocular distances. This will determine if you can use them AT ALL. Especially important when your eyes are spaced as widely apart as those found on a mule, or an ass. Cheers Marty |
Binoculars
"Dave" wrote in message ... On 19 Oct 2006 22:11:51 -0700, "Bart" said: I'm surprised no one has mentioned light gathering capability. Only someone who actually used binoculars under varied and adverse conditions would mention this. Most here are daytime fair weather sailors, why are you surprised? |
Binoculars
"Gilligan" wrote in message . .. "Dave" wrote in message ... On 19 Oct 2006 22:11:51 -0700, "Bart" said: I'm surprised no one has mentioned light gathering capability. Only someone who actually used binoculars under varied and adverse conditions would mention this. Most here are daytime fair weather sailors, why are you surprised? some here don't even own a boat. Shocking! SV |
Binoculars
Gilligan wrote:
"Bart" wrote in message ups.com... What is the technique for hanging two binoculars with straps from the same binnacle? [1 pt] Hang them from the navigator's balls. (Quadrantial spheres for the uniniated). Name the two most characteristics to look for when shopping for binoculars? [1 point each] Lens diameter and power. Too powerful you can't hold them steady. Lens diameter indicates light gathering capability. All that light gathering will do no good if doesn't get transmitted due to undersized prisms. Cheers Marty |
Binoculars
Martin Baxter wrote:
Bart wrote: What is the technique for hanging two binoculars with straps from the same binnacle? [1 pt] Use the Straps? Name the two most characteristics to look for when shopping for binoculars? [1 point each] This is going to depend on your intendended use. But the first thing is probably to check if they have adequately sized prisms, chances are if the manufacturer skimped on these the rest of the build quality will be poor. You can check prism size by holding the binoculars up in front of your eyes at nearly arms length and look through the objective lens at a a faily bright uniform source (like the sky or a a white wall, NOT THE SUN). If you see what appears a bright square in a darker circle in each objective the prisms are too small, the circle should be uniform if the prisms are adequately sized. Cheers Marty Correction: should have said "eypieces" rather than "objective lens" in the previous passage. Cheers Marty ------------ And now a word from our sponsor ------------------ Want to have instant messaging, and chat rooms, and discussion groups for your local users or business, you need dbabble! -- See http://netwinsite.com/sponsor/sponsor_dbabble.htm ---- |
Binoculars
Dave wrote:
On 19 Oct 2006 22:11:51 -0700, "Bart" said: Name the two most characteristics to look for when shopping for binoculars? [1 point each] I'm surprised no one has mentioned light gathering capability. That's the main reason the Navy uses 7X50s (or at least did in my day). They provided the best compromise of magnification and light gathering ability, coupled with a field of view that was adequate on a moving deck. Don't forget the diameter of the exit pupil, (objective dia./mag.), should approximate the size of the pupil in the light conditions for which you intend to use them. The 7X50s with a 7 mm exit diameter are a fair compromise; the human pupil can open to about 9 mm in low light. The typical 7X35 used by bird watchers have and exit pupil of 5 mm. Cheers Marty |
Binoculars
Martin Baxter wrote: "Capt. Rob" wrote: Actually, and Bart will probably have to change his POV on this as I'm 100% correct, the most important factor for choosing ANY binocular set is inter-ocular distances. This will determine if you can use them AT ALL. Especially important when your eyes are spaced as widely apart as those found on a mule, or an ass. Not what I was looking for Martin, but worthy of honorable mention. Predators have their eyes on the front of their heads, while prey, have eyes on the sides so they can be alerted to run away. |
Binoculars
Martin Baxter wrote: Bart wrote: What is the technique for hanging two binoculars with straps from the same binnacle? [1 pt] Use the Straps? There is a trick to this. I bet Jeff or Doug will know it. Hint: It allows you to take off either pair without removing the other. |
Binoculars
Bart wrote:
Martin Baxter wrote: Bart wrote: What is the technique for hanging two binoculars with straps from the same binnacle? [1 pt] Use the Straps? There is a trick to this. I bet Jeff or Doug will know it. Hint: It allows you to take off either pair without removing the other. I think the Trick is more in how you lift the binos of, if want the pair that appear to be "under" just reach through the strap of the other pair and grasp the binos you want, lifting them "out" through the straps of the top pair and the under strap will pull free of the top strap. Cheers marty ------------ And now a word from our sponsor --------------------- For a secure high performance FTP using SSL/TLS encryption upgrade to SurgeFTP ---- See http://netwinsite.com/sponsor/sponsor_surgeftp.htm ---- |
Binoculars
Gilligan wrote: use of binoculars is silly. Low light conditions are where binoculars become useful. You aren't going to hit something a mile away in a sailboat, it takes a good part of an hour to get that far. However in dark conditions the binoculars gather much more light than the eye. Sailboats, thankfully are slow otherwise they would be a real hazard to navigation. In my opinion binoculars are not useful, if you can't see anything. The most important factors being those that help you see what you are looking at better. 1 point to Gilligan. Light gathering is very important. Honorable mention to Joe and CM for pointing out quality as a factor. It's clear that you get what you pay for. |
Binoculars
Bart wrote:
Martin Baxter wrote: Bart wrote: What is the technique for hanging two binoculars with straps from the same binnacle? [1 pt] Use the Straps? There is a trick to this. I bet Jeff or Doug will know it. Hint: It allows you to take off either pair without removing the other. Two separate hooks, one for each? |
Binoculars
Dave wrote: "Bart" said: Name the two most characteristics to look for when shopping for binoculars? [1 point each] I'm surprised no one has mentioned light gathering capability. That's the main reason the Navy uses 7X50s (or at least did in my day). They provided the best compromise of magnification and light gathering ability, coupled with a field of view that was adequate on a moving deck. Dunno whether the widespread availability of stabilized binoculars has changed this. Gilly did mention the light capability. Thanks for the input on the Navy specifications. 1 point to you for mentioning stablized binoculars. These are expensive, and worth it. A pitching deck make it hard to focus on a distant object. I also like binoculars that have a built in compass, but I don't think that is an important requirement. |
Binoculars
Walt wrote: Bart wrote: Martin Baxter wrote: Bart wrote: What is the technique for hanging two binoculars with straps from the same binnacle? [1 pt] Use the Straps? There is a trick to this. I bet Jeff or Doug will know it. Hint: It allows you to take off either pair without removing the other. Two separate hooks, one for each? No. Just one post. How do you place one on the other without causing a tangle such that you can remove either one without removing the other? |
Binoculars
Did someone mention stability control? I like that feature.
-- "j" ganz @@ www.sailnow.com "Bart" wrote in message ups.com... Gilligan wrote: use of binoculars is silly. Low light conditions are where binoculars become useful. You aren't going to hit something a mile away in a sailboat, it takes a good part of an hour to get that far. However in dark conditions the binoculars gather much more light than the eye. Sailboats, thankfully are slow otherwise they would be a real hazard to navigation. In my opinion binoculars are not useful, if you can't see anything. The most important factors being those that help you see what you are looking at better. 1 point to Gilligan. Light gathering is very important. Honorable mention to Joe and CM for pointing out quality as a factor. It's clear that you get what you pay for. |
Binoculars
"Dave" wrote | Following up on my earlier post, every now and then I've thought of saying | "dip it" when throwing a line to the dock. But I haven't because I figure it | would just confuse the line handler. Am I right? How many here would | immediately know what to do if I threw them a line and said "dip it?" You dip it in the water first so it gets wet. This makes the knot hold better. Just kidding. When you dip the line you put it under somebody's else's line that's already tied there. You should always do this so the first guy to tie up doesn't have to untie your line to get to his. Do unto others.... Cheers, Ellen |
Binoculars
"Dave" wrote in message ... On 20 Oct 2006 09:05:35 -0700, "Bart" said: There is a trick to this. Following up on my earlier post, every now and then I've thought of saying "dip it" when throwing a line to the dock. But I haven't because I figure it would just confuse the line handler. line handler? You must have a big yacht. Am I right? How many here would immediately know what to do if I threw them a line and said "dip ****?" I'd throw it back SBV |
Binoculars
"Dave" wrote | Following up on my earlier post, every now and then I've thought of saying | "dip it" when throwing a line to the dock. But I haven't because I figure it | would just confuse the line handler. Am I right? How many here would | immediately know what to do if I threw them a line and said "dip it?" Something else. When people don't dip their lines it tells me they're ignorant. Or they're a power boater. Or they're rude. Cheers, Ellen |
Binoculars
Gilligan wrote: "Joe" wrote in message ups.com... Capt. Rob wrote: Name the two most characteristics to look for when shopping for binoculars? [1 point each] The NAVY issue stamp, and quaility optics. Joe The Navy had good binoculars. They still do. My Navy MK43's made in 1942 still are super clear, bright and have never had a drop of moisture inside them, if the optics are coated, they still have 100% of the coating intact. JFK treasured the pair he had on his PT boat. Joe |
Binoculars
"Bart" wrote in message oups.com... Predators have their eyes on the front of their heads, while prey, have eyes on the sides so they can be alerted to run away. 50 point Smackdown! Well done Bart. An ASA classic for the ages! |
Binoculars
"Dave" wrote in message ... Second, I find them useful during the day for a great deal other than sight seeing. Locating aids to navigation before they're visible to the naked eye; reading buoy numbers and otherwise identifying aids to navigation well in advance; detecting the angle on the bow of approaching vessels; looking for whether there's an anchor line from the bow of that powerboat just off the bow; getting a feel for the speed of commercial traffic--does it have a bone in its teeth; seeing ranges like the center span of the bride and the submarine escape tower that shows the center of the channel in New London; etc. etc. Right you are. Of course I'm not one of those navigators who thinks navigation consists of turning on an electronic display and gluing my eyes to it. YMMV. Of course. |
Binoculars
"Martin Baxter" wrote in message All that light gathering will do no good if doesn't get transmitted due to undersized prisms. Coating is most important with prisms. You want to reduce loss of the evanascent modes on the backside of the reflecting part of the prism. |
Binoculars
"Scotty" wrote in message ... some here don't even own a boat. Shocking! At least I own a set of binoculars! |
Binoculars
"Martin Baxter" wrote in message ... Dave wrote: On 19 Oct 2006 22:11:51 -0700, "Bart" said: Name the two most characteristics to look for when shopping for binoculars? [1 point each] I'm surprised no one has mentioned light gathering capability. That's the main reason the Navy uses 7X50s (or at least did in my day). They provided the best compromise of magnification and light gathering ability, coupled with a field of view that was adequate on a moving deck. Don't forget the diameter of the exit pupil, (objective dia./mag.), should approximate the size of the pupil in the light conditions for which you intend to use them. The 7X50s with a 7 mm exit diameter are a fair compromise; the human pupil can open to about 9 mm in low light. The typical 7X35 used by bird watchers have and exit pupil of 5 mm. Cheers Marty Don't mules and asses have rectangular pupils? |
Binoculars
"Gilligan" wrote | Don't mules and asses have rectangular pupils? Mules and asses teach school? Cheers, Ellen |
Binoculars
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Binoculars
Gilligan wrote:
"Scotty" wrote in message ... some here don't even own a boat. Shocking! At least I own a set of binoculars! I have two sets of binoculars. A cheap pair that I use for everyday knocking about, and a really nice expensive pair that I keep on the bottom of Lake Superior. //Walt |
Binoculars
"Gilligan" wrote in message ... "Scotty" wrote in message ... some here don't even own a boat. Shocking! At least I own a set of binoculars! Just one? Hahah ha ha ha ha |
Binoculars
"Dave" wrote in message ... On Fri, 20 Oct 2006 17:46:00 -0400, "Scotty" said: Just one? Hahah ha ha ha Hey, I've been sailing for years and never needed more than one. How many eyes you got, Scotty? 6 |
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