Wednesday, January 13, 2016

Do I need separate tripods for my camera and my spotting scope?

I'm a nature photographer and interested in digiscoping--so I'll be buying a spotting scope soon. Regarding a tripod, I have a pretty nice one for my camera.  Do spotting scopes require a different tripod?




Hi Mike,
Thanks for your good question!

You say you have a nice tripod for photography. The most important thing to determine is whether it is also suitable for your new spotting scope.  

No doubt the leg set, assuming it has an adequate weight capacity, will be fine (many digiscopers will buy carbon fiber, since it has less vibration than aluminum).  

It’s the tripod head you will need to evaluate for dual use. Here is our video which will help understand the differences in tripod heads: Choosing the Right Tripod Head

Let me know if you have further questions, and thanks!

All the best,

Eagle Optics

Monday, January 11, 2016

Does larger aperture mean wider field of view?

Hello EO,
I plan to purchase either the Eagle Optics Ranger ED 8x32 Binocular or Eagle Optics Ranger ED 8x42 Binocular.  I was surprised that the Field of View for the 8x42 (341’/1000 yds) was less than the 8x32 (393’/1000 yds).  Why is that?  

Shouldn’t the wider objective lens of the 8x42 (42mm) give a broader field of view than the 8x32 (32mm)?  

Is there an advantage of one over the other?

Thank you very much.
David J.


 Dear David,
Thanks for your inquiry. It’s true that the shorter-barreled binoculars have a wider field of view (excluding compacts), though lots of people, like yourself, assume the opposite would be true. Field of view doesn’t increase with larger objective lens sizes. In fact, the Eagle Optics Ranger ED 10x50 Binocular has an even narrower field of view than the 42mm and 32mm Ranger ED.

You might find this video helpful for a more detailed explanation of aperture size, and  here is a brief article from our website to illustrate FOV.

The 32mm Ranger ED is the one to choose if you want a more lightweight binocular with wider FOV. However, it won’t be quite as bright in low light as the 42mm Ranger ED would.

Let me know if I may be of further assistance.

All the best,

Eagle Optics

Tuesday, January 5, 2016

Need smaller, lighter binocular for vacation

A friend recommended your online store to me.

I have a trip coming up to the Galapagos Islands and want to replace my binoculars.

My current pair is a 7X35 Nikon, 10 years old.  I like the wide field of vision, but they are a bit heavy.  Ideally I'd like better magnification, lighter weight, wide field of vision, good price.

Can you provide some recommendations?  I'd like to have the new ones at least two weeks in advance of my trip (which is in early February).

Thank you,



Hi Jeana,
Thanks for your inquiry.  Do you know what the weight is of your current binoculars and do you have a budget in mind for the replacement pair?
I would recommend any consideration be waterproof.

One challenge with your request will be the wide field of view in conjunction with increased magnification.  Those two attributes almost always work against one another, meaning that as we increase magnification we generally get a narrower field of view.
In general, an 8x32 sounds like the ideal size binocular for you.  They will generally have a wide field of view and be relatively light weight while providing you with some additional magnification.  While 8x32’s generally have a wide field of view (compared to an 8x42), it’s unlikely that any will have one as wide as your 7x35.

Another advantage of an 8x32 is that there are many binoculars this size that have an excellent close focus, which is a great feature for observing the docile wildlife of the Galapogos Islands up close!
A good mid-priced option that is popular and would fit your needs is the  

If you had something else in mind or if I can be of further assistance, please don’t hesitate to email or call.

Best regards,

Eagle Optics

Wednesday, December 30, 2015

Avoid binocular damage made by metal rings

I recently got a harness strap for my binoculars. I tried to attach the harness to the binocular with the plastic clip, but the clip was too thick and wouldn't fit on to the side slots of the binocular. I did have to add two metal circles to the handles so that I could attach my bin harness. Is this normal?



Hi Pamela,
Thanks for your inquiry. 

We don’t advise attaching a metal ring directly to the binocular eyelets. The metal ring acts as a tiny saw and will eventually wear through the eyelet and break it completely—our repair department sees a lot of this sort of damage, unfortunately.  So instead, first attach a plastic zip-tie to the binocular eyelet, and put the metal ring on it. The zip-tie acts as a buffer and won’t damage the binocular as metal-on-metal would.
You can also get this connector, which some people prefer:   Vortex Binocular Harness Strap Connectors (Set of 2)

These connectors are included with the Eagle Optics Bino System Harness Strap, but they can also be purchased separately.

Just trying to help you prevent unwanted damage to your binocular! If you have any questions, please let us know.
Best regards,
Eagle Optics

Monday, December 28, 2015

How to attach a rainguard to a harness strap?

I was given a harness (purchased from Bird Watchers Digest) for Christmas and cannot figure out how to attach it to the bins.

The bin's neck strap is threaded through the raingaurd's rubber hook which secures it when lifted off for viewing. Removing the neck strap to attach the harness leaves the rainguard completely loose. How do I then secure the rainguard?

Thank you for any advice you can offer.



Hi Annette,
I don't know of any harness strap that has a separate attachment for the rainguard. 

Some use a string or zip tie to attach it. It just takes a little ingenuity. Many birders don't attach it at all, as they don't like the rainguard hanging near their face while viewing through the binocular. Our repair department would discourage this practice, however!

All the best,

Eagle Optics

Wednesday, November 18, 2015

Vanguard Endeavor ED vs. Endeavor ED II

I’m looking at both the   and the . I can’t seem to find a justification in the price difference of approx. $150.00.  Can you tell me what the ED II has that the ED doesn’t?


Stephen B.


HI Stephen,
Thanks for your inquiry.  Most all the specifications between these two models are identical.  They are essentially the same binocular with the ED II using higher grade optical components such as lens coatings, glass, and prisms.  

I pulled both models from our display cabinet just now so I could draw a comparison between the two. The ED II is both a sharper binocular (resolves images better) and provides a brighter image. I was conducting this comparison indoors in a relatively low-light area here in our showroom.  Under ideal lighting conditions, the differences between these two models would certainly be more subtle. 

Is it worth the $150 price difference?  That would be hard to answer on someone else's behalf.  Much would depend on what sort of conditions you would be using the binoculars in and what your expectations are.  I would say that the optical performance between the two is readily noticeable and you don't have to be an optics expert to detect it.

If you would like to compare them yourself, you are welcome to purchase both and then ship one back after comparing them for a full refund.

If you have more questions or if there is anything else we can help you with, just let me know.

Best regards,

Eagle Optics

Tuesday, November 10, 2015

Looking to digiscope with a Kowa scope

I currently own a Kowa 77 angled scope with the extra wide 25-60 eyepiece. It is currently being used with a Promaster carbon fiber travel tripod. I also at times bring out my Nikon D7100 with a 300mm plus 2X to take photos. Its all becoming a big pain lugging all this with me. 

I was looking into digiscoping on your website and I find it a bit confusing. Does Kowa or anyone else make an adapter where you can mount a digital point and shoot to the front lens and also be able to just move it out of the way when viewing through the scope? And what would one look for in a point and shoot? Thank you so much. I really love your tutorials.



 Hi Stan,
Thanks for your e-mail!
For digiscoping, you can use a point and shoot camera with an optical zoom of 4x or less. You would need this adapter: Kowa DA10 Digital Camera Adapter 

If you want to save even more weight in the field, you can use your smart phone for digiscoping. This one holds an iPhone, and Kowa makes this bracket for the iPhone 4, 5, and 6:  Kowa TSN IP4S iPhone 4/4S Digiscoping Bracket

The simplicity of using a smart phone for digiscoping is amazing--and the quality of the photos is excellent.  If you have an android phone, you can buy an adapter through

Please call us if you have any questions. 800-289-1132.

All the best,

Eagle Optics

Friday, October 30, 2015

Will the Kowa Extender fit my older Kowa scope?


Will the new Kowa 1.6 Eyepiece Extender for TSN 88/77 work on the Kowa 824 scope?  I don't know if Kowa changed eyepiece mounts or not since the 824.

If the eyepiece mounts are the same, will work?


Skip A.

Hi Skip,

Thank you for your email.  Unfortunately the new eyepiece extender is not compatible with the TSN-824 scope and will only be compatible with the TSN-770 and TSN-880 Series scopes.  The TSN-820 Series mounts are a bit smaller than the 770/880 scopes.  Please let me know if you have any other questions.

Best regards, 

Eagle Optics

Saturday, October 17, 2015

Binocular specs are comparable--why is one more expensive?

The specs of the  seem to be almost identical to the .

I wanted to buy the Viper 8x32 the first time I looked through it but didn't have the $600 for it then.

If the Ranger ED 8x32 is the same optically, its a much better price.

Please confirm.



Dear Tim,
Thanks for your inquiry. The Viper and Ranger are different optically, even though the specs (on paper) are similar. Optical quality is something that is reflected—usually by price, but certainly by performance, which is something that has to be seen to be appreciated.

The Ranger (China) has been one of our best sellers for 20-some years.  The Viper (Japan) will have better resolution—brighter, sharper to the edge with better lens coatings and less chromatic aberration. Its build quality and internal parts are also of higher quality than the Ranger.  However, I will say that the latest generation of the Ranger, the current Ranger ED, is closer than ever in optical quality to the Viper. It’s one of the great values in binoculars in its price range.

This short video will help you understand how optical quality affects what you see.
If you have any questions, please let us know.

All the best,

Eagle Optics

Thursday, October 15, 2015

Is the Leica Trinovid binocular still in production?

Good Afternoon,
I'm shopping for a pair of  Leica Trinovid 10x42 binoculars. I thought I saw them on sale on your site within the last couple days, butI do not see them at all now. Is Leica no longer making them, or are you just not carrying them anymore? And if that is the case, that is comparable in terms of price and quality?

Dear Jacob,
Thanks for your inquiry about the Leica Trinovid binocular. Leica is discontinuing this model and will not be making them anymore. The closest models to it would be either the , or .

If you need more detailed information about any of these binocular models, just give us a call at 800-289-1132.


Eagle Optics