Image Stabilization and More
With any high magnification binoculars, most users will experience frustrating image shake. Unless fixed to a tripod, image shake can render high magnification binoculars useless. Canon's IS technology is remarkably effective at eliminating this problem and is widely used by the television industry with Canon's professional broadcast quality video recording equipment. A special VAP (Vari-Angle Prism) corrective IS system sits between the objective lens group and the porro prism on each side of the binoculars. Within thousandths of a second of the binoculars being moved from their optical axis by vibrations, a detection system activates the IS mechanism. The VAP shape alters to refract or 'bend' the light path by precisely the right amount, thus fully compensating for the vibration. It is this essentially immediate response that effectively suppresses image shake.

Super Spectra Coating
A number of optical factors affect the brightness of an image, including the amount of incidental light that is reflected by the lens. An uncoated lens will refelect away as much as 8% of the incidentail light, significantly dimming the image. Canon's Super Spectra Coating prevents that reflection.

What do the numbers mean?
15x50? 8x25? The two numbers used to describe any pair of binoculars are their magnification — 8x, 12x, 15x and so on — and the diameter of their objective lenses — 25mm, 36mm, 50mm, and so on. The larger the first number is, the larger the object will appear to be in the objective lens. For instance, if you use a 10x lens and look at an object that is 100 yards away, it appears to be the same size as an object located just 10 yards away. The second number, the size of the objective lens, is important because the larger the objective lens, the more light it can admit for brighter, more detailed images, and the better suited they will be for lowlight situations.

A look inside

What they are: as it says, the lightest and least expensive IS binoculars on the market (right now). The optics themselves are only merely very good, but - HAND HELD - with the IS activated, they allow me to read fine print about 20% closer than with my Leica 8x32 Ultras. On a rest, the Leicas are superior. It's the elimination of the jiggles - the 8x25 Canons don't give an image that's as bright and contrasty as those high dollar Leicas, but the steadier image more than makes up for that.

What they aren't: waterproof or armored. So have a care if you use them in conditions of rain or dust. They're much more complicated than simple binocs, with electric circuits inside, and the matter of reliability does come into consideration - but in the first year, they've survived life in the tote bag ,bouncing along dirt roads without a hiccup. Two more things: besides armoring and ruggedizing, Canon had to compromise _somewhere_ to make them this small. So, while the IS deals well with rapid human shaking. it doesn't seem to correct at all for slow motions. I imagine the engineers were forcd to leave off the sensors for slow motions, to fit everything else in. And, they use CR123 batteries, more expensive and harder to find in a pinch than AA batteries. Of course, if the batteries run dead, all your are left with is a functional set of very good, if a bit bulky, 8x25 binocs. What Canon has created is $300 binoculars that - hand held, with the IS active - outperform my high dollar Leica 8x32 Ultras. And, I imagine, the Nikon SE's, too. No kidding.


Viewing Power per Dollar - Second to None!   September 2, 2003
 37 out of 39 found this review helpful

I have to give these binoculars 5 stars, not because they are the finest optics money can buy, but because they give the clearest and steadiest handheld viewing you can get at anywhere near this price. Value for the money is the point, here. But, besides value, they actually are very good quality optics! They feel well made. Although they are mostly plastic, it's good quality material, they don't feel cheesy. No, they are not built like a Leica tank (intended to survive an atomic blast), but the image stabilization is so amazing, I am willing to be a little extra careful with them. You look through them and press that button, and, PRESTO, the view just stops jiggling! It's just fantastic! The I.S. has greatly improved my stargazing pleasure. Maybe I have especially bad hand tremor, but I would bet anybody would notice a big difference. I really love them!!


A good binocular for light use   September 15, 2006
 31 out of 31 found this review helpful

I bought these binoculars because I was just a bit frustrated with using regular binoculars. I already have a set of weatherproof Minolta binocs that cost about $200, but wasn't finding it useful because the effort required to hold it steady enough to see detail just made it fatiguing to use for any length of time

Seeing as I've had great success with Image Stabilization in SLR lens, and my point and shoot, I thought I would give this Canon a try

I like it. It's quite light for its size, and compact enough that I don't feel burdened to bring this with me for any kind of event short of a long hike up a large mountain. It does take a CR123 battery which is kind of expensive if you buy them at a department store. You should try to find them online. Many high end flashlights use this type of battery, and they are available for around $2 online. Surefire (a top flashlight brand) batteries are what I recommend and use everywhere (in my flashlights and cameras). These kinds of batteries have a long shelf life so it's no problem to buy a few extra

The main reason for this binocular is the stabilization. In reality, the Image Stabilization is actually quite subtle. You still have to do your best still to keep the binocs steady, but the stabilization adds a just bit extra steadiness to the image, enough to make a difference you can notice. You have to keep the button at the top of the device pressed with your finger...it turns off as soon as you let go of the button.
All in all, the IS works well for the natural minute shakiness of your hand but larger movements are not compensated for as you would expect. So don't expect the image to be steady if you are trying to spot animals from inside a car. If you deliberately move the binoculars side to side, you can see the mechanism doing its work as it floats and then hits its limits.

The drawbacks...

- the eye relief is only 13.5 mm...so it's not really suitable for eyeglass wearers. I find an eye relief of 16mm minimum to be very usable with eyeglasses.
- uses harder to find CR123A batteries.
- the device isn't water resistant, so you have to keep this thing completely dry
- Image Stabilization effect is quite bit more sutble than you might expect, but it's definitely effective enough to be noticeably more steady than a normal binocular

I think the future of binoculars is definitely IS. I see that Canon has a version 2 of their IS in a more expensive model, so maybe the action of the IS is improved and may be added to this model in the future. If you are a casual user who just wants an effective binocular, this is a great one to choose. Canon makes higher grades and higher magnifications for the more serious user.



They beat Leica 8X32's   April 27, 2004
 23 out of 32 found this review helpful

Oh, man. I worked eBay, finally got myself a pair of the vaunted Leica 8X32 roofs at a decent price. And splendid binoculars they are. Excellent.

Then Canon comes out with these IS 8X25's. I already had the 12X36 jobs, wonderful and bulky. HAD to have the 8X25's.

Here's the deal. Serious binocular users know "Better view Desired" http://www.betterviewdesired.com/

I used a casual version of his NEED test.

The $300 canon IS 8X25's beat the $500 Leica 8X32's all hollow on any measure of hand-held resolution. HAND-HELD. On a rest, the Leicas showed their precision optics. Hand held, the Canon's were far better.

There ya be, friends. Image stabilization RULES.

RossB


nice, but not that amazing   July 9, 2005
 15 out of 18 found this review helpful

I couldn't help myself buying these after reading the reviews (all magnifications). I got it for $170 A/R.

When I took it out case and look through, I was a little bit dissapointed. The IS effect was not so obvious. But after a while I got used to it. I think it is not bad.

The binoculars are nice themselves without IS. The IS effect is not so big becasue I think this is only 8 times magnification.
This is the only reason that I am giving it a 4 star ranking instead of 5.

But don't get me wrong, the IS effect is there. I can read smaller words with IS on. So I suggest buying higher powers if you can afford them and you are OK with their sizes and weights. The higher power the better IS effet.

Now about those whines,
1. Battery.
It is said one cr123a can be used for 6 hours. It is OK and it's not expensive if you buy them online ($1.5 each).

2. Object lens caps.
I put eye lens caps on object lens, they fit well.

3. Durability.
It's a fine product. What do you wanna do with a fine optical product other than using it with care?