We’re going to Big Bend in a couple of weeks th-cam.com/users/postUgkxSt0aBrzyS1nxONvwm1e0u7ZDFD_eypAO so I bought these to use during the hikes, didn’t want to miss anything. As you can see by the photos I tested the phone adapter by taking a phone of a power pole on the next block and you can see the results. It took a couple of minutes to line the phone camera up to the eye piece, there’s a bit of a learning curve, but once it was longed up it stayed in place without any issues. So far I’m impressed with the feel and the weight, the neck strap is wide and soft so it feels good on my neck. I look forward to using it with my friend and grandson in Big Bend!
So if what I see with the naked eye through a piece of glass is measured at 5mm, then with 8x magnification, the diameter would be something like 40mm (4cm) ?
Good explanation. The explanation of image stability after 2:00 pretty well shows how it looks with image stabilisation, though. Slow movements are not a problem. The micro vibrations from the hands are much faster and above a certain magnification it's too much for the eyes to compensate.
Easy peasy, I just didn't know. Thanks. I was shopping on Amazon for a pair of noc's for my son's 5th B-day and I didn't understand. I won't forget your video. SUBSCRIBED!!
This was an excellent video. Thank you! The one thing I would have liked to see is what the difference is between those binoculars of different sizes, and how that affects what you see when you look through them. Also, how does the second number, the diameter of the input light lens, affect what you see?
Thank you for watching this video! We really appreciate your input and recommendations as well. If you would like, I'd recommend watching some of the videos on our Playlist Understanding Optics th-cam.com/play/PL674D7315F55534C7.html. And please don't hesitate to ask if there is anything else we can help with!
You should have mentioned the angle of view - very important. It's the _third_ number (not mentioned in the video). One can have two 8x30 (say) binoculars, yet one will have a grand, _huge_ field of vision, like an IMAX screen, while the other will give the impression of tunnel vision. Unfortunately, these days the wide field of view is not something deemed important by most manufacturers, so for example binoculars with a 70 degrees apparent field of view (AFOV) are a rarity. Maybe that's why this was not mentioned in the video, binoculars with a wide AFOV are hard to find (easier to find in Japan, so search the Japanese Amazon and eBay).
For those wondering why birders like a wide field of view when the bird is usually just in the center, one top reason is that birder's need to FIND the bird and a narrow field of view makes it hard to spot the bird. Just today I saw a bird on the end of the third branch of a tree about 100 feet away. I pulled my 7x binocular and had an easy time finding the third branch and then the end of the branch. Unfortunately, I could not make out the details of the bird. I pulled up my 10x binoculars to see more detail, but for about 30 seconds, I could not locate the bird. All I saw were little bits of tree branches and I had no idea exactly where the binoculars were pointing. The bird flew away before I could find it using the 10x pair. So, even though the 7x pair did not give me the detail I wanted, at least I saw the bird! I am looking to buy a new pair of binoculars, and this trade-off is challenging me. I just went online and saw the Dick's sporting goods has a model that is 10x50! It weighs more, but the 50mm objective lens is used to offer a wider field of view. On the other hand, and to my disappointment, the field of view is not as wide as one would expect for such a big lens. So, I am still not sure what to buy! :-b
What I notice is something interesting when I look through my binoculars, everything around me from afar looks shallow, like the background is closer together with the foreground
My monocular is showing blurred image. Its prism has dislocated. I dismantled it but could not take out the prism. Can you please share some video on such issue.
You showed 4 bino's of different size with 8x mag, how would viewing be different from smaller one and largest one.. also need info about power adjustment for plp who wear powered glasses.
I have 90*90 binoculars, 430 ft AT 1000 yards, 143 meters AT 1000 M....? First 90 means 90 times more power than eye? Is it true because most reviews are not going above 12x
Few binoculars have variable magnification. Are you sure yours have that? You did not mention a variable number, just the 10x magnification and the size of the objective lens (50 millimeters). If you have a second wheel besides a focus, maybe it's the diopter adjustment for one of the eyes (you focus for the first, typically left, eye [optionally closing your right eye] and then adjust the right diopter for the right eye [optionally closing the left eye]. When you're done with both adjustments, you should have the best focus.
I have a huge pair of very powerful binoculars which are best mounted on a tripod, that way I can see in my neighbours bedroom and watch her without any shake 👍
Good as far as it went but you really should have covered what the second number means in practical terms rather than just telling us in a line what it signified.
This video isn't exactly correct. I have a pair of porro 10X50 binoculars with a 6.8 degree field of view, its not the biggest but its huge for 10X. It feels like there is more freedom to navigate, no looking down a straw tube effect because of the wide field of view making movement less noticeable. I have used binoculars with less power where the movement was more noticeable because the field of view was narrower, around 4 to 5 degrees, these were roof design but using porro in the 7X to 8X with a massive field of view of 8 degrees or more where there were no noticeable shakes. My experience is that a wider field of view makes an image more stable than if it has a narrower field of view. I am not the only person to notice this. Which brings me to the next bit. The claim that higher magnification makes a field of view narrower is not completely true. The field stop of the eyepiece is what defines the field of view size within the focal length of the optical instruments limits. This is why you can get higher power binoculars with wider fields of view than lower power binoculars. One other thing that can cause an image to shake are the weight of the binoculars and this is different for people.
This is such a perfect video to stumble upon after collecting my own research. The summation was supportive + straight to the point. Chefs Kiss! 🤌🏼 going to a concert + I was stuck between what an 8x -12x view would present
Hi Im sorry to hear that you finished with your optics business. I see that you have lots of great video content. I wondered if you are interested In selling your video content on you tube. Also I wondered if your domain eagleoptics.com is for sale and if yes what is the price Best Regards James Bix Stealth Birding
Twenty five describes how much the lens are used to bend the light for magnification. It's 25 times the width and 25 times the height. Technically, images magnified N times have N*N more area. If you are standing in a lot using a 6x binocular and it lets you see something just 24 feet wide from where you are standing (the edge of the image you see to the other edge just allows the 24 foot object to fit), then doubling the magnification to a 12-power setup would only let you see a 12 feet wide object. You would chop off the outer 6 feet on the left and right (and top and bottom) of the image. The size of the lens is what determines how much light you gather. If you a manufacturer wants to double the magnification without losing brightness, they can double the objective lens size. It gets more confusing when you into these details, including field of view. In the end, it's not just basic ratios that matter. It matters how much the manufacturer uses the lenses and prisms to gather and bend the light.
Wich figer is best for zoom 12/50?or wich is recommended for me because I m big fan of binoculars and I want very good zoom wich will b better for me??
The US, British, German, and Japanese Navies during WWII determined that on ships, lookouts scanning for ships on the horizon, could only view thru seven power binoculars even on the most stable of ships, because of their arms became fatigued very quickly. They chose 7x50 binoculars for the light gathering ability of the 50mm objectives. The Captains of German U-Boats were given 10x75 binoculars for target spotting at night on the surface with their elbows resting on the edge of the bridge. Advancements in design have made 8x42 extremely popular for birding, but for beginners, 6x40 may be a better choice until you become proficient at holding steady. HINT: Please don't get tiny "pocket size" binoculars! Hard to hold, hard to focus, hard to see thru.
I'm interested in binoculars for driving. Sounds bizzare but I want them to be able to see down the highway, moving vehicles and plates. What power do I purchase from your store.
I have been searching over 40 years for someone to finally explain it properly. Thank you Sir!
40 years lol. In which year were you born?
@@divijsharma0102 '73. So that makes me 49, almost 50 :)
That's real dedication
@@najdo was TH-cam still there 40 years back ?
You guys are ass hats
We’re going to Big Bend in a couple of weeks th-cam.com/users/postUgkxSt0aBrzyS1nxONvwm1e0u7ZDFD_eypAO so I bought these to use during the hikes, didn’t want to miss anything. As you can see by the photos I tested the phone adapter by taking a phone of a power pole on the next block and you can see the results. It took a couple of minutes to line the phone camera up to the eye piece, there’s a bit of a learning curve, but once it was longed up it stayed in place without any issues. So far I’m impressed with the feel and the weight, the neck strap is wide and soft so it feels good on my neck. I look forward to using it with my friend and grandson in Big Bend!
Best and most simplified explanation with great animation as well. Thumbs Up to you sir.
Great clear, concise and practical video. Really useful for complete novices like me. Many thanks.
very informative, thank you! Loved the animations and explanations
Thank you for watching! We're so glad you found this video helpful!
So if what I see with the naked eye through a piece of glass is measured at 5mm, then with 8x magnification, the diameter would be something like 40mm (4cm) ?
Good explanation. The explanation of image stability after 2:00 pretty well shows how it looks with image stabilisation, though. Slow movements are not a problem. The micro vibrations from the hands are much faster and above a certain magnification it's too much for the eyes to compensate.
Easy peasy, I just didn't know. Thanks. I was shopping on Amazon for a pair of noc's for my son's 5th B-day and I didn't understand. I won't forget your video. SUBSCRIBED!!
So helpful, clear and concise. Thank you!
This was an excellent video. Thank you! The one thing I would have liked to see is what the difference is between those binoculars of different sizes, and how that affects what you see when you look through them. Also, how does the second number, the diameter of the input light lens, affect what you see?
Thank you for watching this video! We really appreciate your input and recommendations as well. If you would like, I'd recommend watching some of the videos on our Playlist Understanding Optics th-cam.com/play/PL674D7315F55534C7.html. And please don't hesitate to ask if there is anything else we can help with!
Simple and very understanding. Thank you. I’ve always wanted to know.
You should have mentioned the angle of view - very important. It's the _third_ number (not mentioned in the video). One can have two 8x30 (say) binoculars, yet one will have a grand, _huge_ field of vision, like an IMAX screen, while the other will give the impression of tunnel vision. Unfortunately, these days the wide field of view is not something deemed important by most manufacturers, so for example binoculars with a 70 degrees apparent field of view (AFOV) are a rarity. Maybe that's why this was not mentioned in the video, binoculars with a wide AFOV are hard to find (easier to find in Japan, so search the Japanese Amazon and eBay).
Thanks for you comment and for watching our video!
Thank you so much for the info very helpful God bless you all from Seattle WA. 😊👍
very informative as i am buying a pair right after this video. ! thanks
A good explaination ,thank you.
For those wondering why birders like a wide field of view when the bird is usually just in the center, one top reason is that birder's need to FIND the bird and a narrow field of view makes it hard to spot the bird. Just today I saw a bird on the end of the third branch of a tree about 100 feet away. I pulled my 7x binocular and had an easy time finding the third branch and then the end of the branch. Unfortunately, I could not make out the details of the bird. I pulled up my 10x binoculars to see more detail, but for about 30 seconds, I could not locate the bird. All I saw were little bits of tree branches and I had no idea exactly where the binoculars were pointing. The bird flew away before I could find it using the 10x pair. So, even though the 7x pair did not give me the detail I wanted, at least I saw the bird! I am looking to buy a new pair of binoculars, and this trade-off is challenging me. I just went online and saw the Dick's sporting goods has a model that is 10x50! It weighs more, but the 50mm objective lens is used to offer a wider field of view. On the other hand, and to my disappointment, the field of view is not as wide as one would expect for such a big lens. So, I am still not sure what to buy! :-b
Maybe try one with adjustable magnification?
Is the intro the same as in Veritasium channel, or is it some stock music from youtube?
The Animation is Super helpful.
it was really helpful! thanks mate
Best video on this subject watch 20 plus
How do you describe 80x80 power binocular. In fact most available is 10x50 magnification? Please help.
Really good!!Thank you,it really helped me to choose my binoculars!
Thx for the explanation :)
Very clear and good
What I notice is something interesting when I look through my binoculars, everything around me from afar looks shallow, like the background is closer together with the foreground
Tq for the info Eagle optics, it was useful
My monocular is showing blurred image. Its prism has dislocated. I dismantled it but could not take out the prism. Can you please share some video on such issue.
You showed 4 bino's of different size with 8x mag, how would viewing be different from smaller one and largest one.. also need info about power adjustment for plp who wear powered glasses.
Yes.. Drink beer first
Cool explanation , thanks
of the small binoculars that has the most stable image without shaking.ultravid 8x20,nikon8x20hg and Nikon 6x15micron?why is the image shaking?
Doesn’t that mean it magnifies less than my iPhone ? Thanks (I’m wondering whether or not to buy some binoculars for seeing nature better)
Thank you so much !!!!!!!! Damn it this was explained to me years ago by someone who didn't know the truth. Thanks again
Very helpful THANK YOU
I have 90*90 binoculars, 430 ft AT 1000 yards, 143 meters AT 1000 M....? First 90 means 90 times more power than eye? Is it true because most reviews are not going above 12x
sooo, the sakura 30x60, makes it bigger 30 times?
My binoculars are 10 x 50 but when I turn the magnification wheel it doesn't seem to magnify.
The focus wheel works great , though.
Few binoculars have variable magnification. Are you sure yours have that? You did not mention a variable number, just the 10x magnification and the size of the objective lens (50 millimeters). If you have a second wheel besides a focus, maybe it's the diopter adjustment for one of the eyes (you focus for the first, typically left, eye [optionally closing your right eye] and then adjust the right diopter for the right eye [optionally closing the left eye]. When you're done with both adjustments, you should have the best focus.
@@bruzote Yes , that must be it.I turned the second and I did indeed get a better focus.
Thanks for the advice.
What about the 42? I was hoping to see what that does.
Thanks for very clear clarification! )
Nicely done.
the best one for entry education
Easy, simple👍👍👍
oh dear Lord! Thank for this video.
I have binocular magnification 24x 120*90 bijia ....how much run in meters
thank you most helpful.
Thanks a lot !!!
So if i use the eye lense in front of my camera.. Will it work?⚡⚡🚨🚨🚨🚨🎈🎈
Thanks !
Thank u so much bro💖
I have a huge pair of very powerful binoculars which are best mounted on a tripod, that way I can see in my neighbours bedroom and watch her without any shake 👍
So aren't they adjustable?
How k m seen it
Thanks
Helpful ❤👍
Good as far as it went but you really should have covered what the second number means in practical terms rather than just telling us in a line what it signified.
The higher the second #, the less you will see around the object at which you are looking.
This video isn't exactly correct. I have a pair of porro 10X50 binoculars with a 6.8 degree field of view, its not the biggest but its huge for 10X. It feels like there is more freedom to navigate, no looking down a straw tube effect because of the wide field of view making movement less noticeable.
I have used binoculars with less power where the movement was more noticeable because the field of view was narrower, around 4 to 5 degrees, these were roof design but using porro in the 7X to 8X with a massive field of view of 8 degrees or more where there were no noticeable shakes.
My experience is that a wider field of view makes an image more stable than if it has a narrower field of view. I am not the only person to notice this.
Which brings me to the next bit. The claim that higher magnification makes a field of view narrower is not completely true. The field stop of the eyepiece is what defines the field of view size within the focal length of the optical instruments limits. This is why you can get higher power binoculars with wider fields of view than lower power binoculars.
One other thing that can cause an image to shake are the weight of the binoculars and this is different for people.
thank u so much
Thanks for watching!
Yup
nice
This is such a perfect video to stumble upon after collecting my own research. The summation was supportive + straight to the point. Chefs Kiss! 🤌🏼 going to a concert + I was stuck between what an 8x -12x view would present
Hi
Im sorry to hear that you finished with your optics business.
I see that you have lots of great video content.
I wondered if you are interested In selling your video content on you tube.
Also I wondered if your domain eagleoptics.com is for sale and if yes what is the price
Best Regards
James Bix
Stealth Birding
Huh
So we're invading a bird's privacy by looking at it without it seeing you...
So 25x100 is 25 its size..?
Twenty five describes how much the lens are used to bend the light for magnification. It's 25 times the width and 25 times the height. Technically, images magnified N times have N*N more area.
If you are standing in a lot using a 6x binocular and it lets you see something just 24 feet wide from where you are standing (the edge of the image you see to the other edge just allows the 24 foot object to fit), then doubling the magnification to a 12-power setup would only let you see a 12 feet wide object. You would chop off the outer 6 feet on the left and right (and top and bottom) of the image.
The size of the lens is what determines how much light you gather. If you a manufacturer wants to double the magnification without losing brightness, they can double the objective lens size. It gets more confusing when you into these details, including field of view. In the end, it's not just basic ratios that matter. It matters how much the manufacturer uses the lenses and prisms to gather and bend the light.
“Understanding Binoculars: objective lens size”. Can we have something like that please?
1:11
Thanks for watching!
Didn’t really talk about the second number much. A little confusing - at least to me.
De 8 para 10 já se vê boa melhora na aproximação. Se for correta Essa simulação.
I think with naked eye it should be 1x magnification :))
Hey, Vsauce Michael here!
That's veritasium
But now, with ' NL Pure ' x10, not only i can see the bird with the bird house.... but also with the tree !!!!
; )
And I found after 3 years of yours comment
Sadly, Eagle Optic closed its doors December 2017.
If you want top quality Binoculars I'd recommend the german brands Zeiss, Leica, Swarovski or Steiner.
Sad to hear! I am upvoting these, but the company does not even know.
I wonder how many people went to them for advice and then bought online. :-b
If you want cheap and best buy nikon 7x35
Binocuwehr
Do you want something ?
But how magnification works bro? I find nothing answer here
Who ever is seeing the video in the lockdown hit a like
why that a stupid music behind
This thing is in Minecraft!
Very unhelpful. Thanks
How do you describe 80x80 power binocular. In fact most available is 10x50 magnification? Please help.
Very concise & informative. 👍
Wich figer is best for zoom 12/50?or wich is recommended for me because I m big fan of binoculars and I want very good zoom wich will b better for me??
Beer googles
Great simple video.Thank you for making it.
Thanks God bless you
The US, British, German, and Japanese Navies during WWII determined that on ships, lookouts scanning for ships on the horizon, could only view thru seven power binoculars even on the most stable of ships, because of their arms became fatigued very quickly. They chose 7x50 binoculars for the light gathering ability of the 50mm objectives. The Captains of German U-Boats were given 10x75 binoculars for target spotting at night on the surface with their elbows resting on the edge of the bridge. Advancements in design have made 8x42 extremely popular for birding, but for beginners, 6x40 may be a better choice until you become proficient at holding steady. HINT: Please don't get tiny "pocket size" binoculars! Hard to hold, hard to focus, hard to see thru.
100th comment
Thanks.
Best video with explaining!
so if your bird watching why would you want to see the tree
I'm interested in binoculars for driving. Sounds bizzare but I want them to be able to see down the highway, moving vehicles and plates. What power do I purchase from your store.
You should aim for around 5x.
Porro prisms are much better
What's the 2nd # for?
We want language in hindi
Very nice explained
Thank you for your comment and for watching!
Nonsense you didn't explained all the 3 magnification numbers .
michael martin: Huh? Go back and watch the video.
I have Binocular made in russia and its indicate in this body 99990x99990 how does far it means