Product Review: The Canon IS 10 x 30.

The Canon IS 10 x 30.

A Work Commenced December 29 2021


I’m fortunate enough to live in a small, rural village, where I can get to know many of my neighbours and learn of their interests. For example, just a stone’s throw away from my home lives a young man who works for the RSPB, and who routinely employs binoculars and a high-end spotting scope. Further up the village, I know a keen deer hunter who’s allowed me to test drive his very impressive Swarovski EL Range 10 x 42 on a number of occasions. And not far from him lives a retired psychiatrist who enjoys using image stabilised binoculars. One day, when I was out for my long daily walk, I met up with him as he walked his dog, and asked if I could borrow one of his Canon IS binoculars for testing. He agreed, and offered me the choice of a 10 x 30 or a smaller 8 x 25. I chose the larger 10 x 30 model, as I wanted to test the image stabilising technology at the higher power of 10x. What follows is a brief review of how it performed, based on a few days of use.

Ergonomics & Handling 

The Canon IS 10 x 30 is an earlier model and is about 8 years old. It has now been replaced with the Canon IS II 10 x 30. I was quite taken aback by the size of this instrument. Weighing in at 660g(without its strap) it is very big and bulky. For a size comparison, the picture below shows it alongside my GPO Passion ED 10 x 32.

The Canon IS 10 x 30( left) alongside the GPO Passion ED 10 x 32 (right).

I found the handling of this binocular to be quite difficult and awkward. It was hard to find a comfortable position in my medium sized hands. The objective lenses are well recessed – a good thing as the unit is not waterproof or dustproof. They do have rather nice, dull greenish antireflection coatings applied which do not show much signs of degrading over the years.

The nicely recessed 30mm objectives on the Canon IS 10 x 30.

The ocular lenses also show nicely applied antireflection coatings but the eye cups are old-school soft rubber – you know the kind that fold down for use with eye glasses.

The ocular lenses also have good antireflection coatings applied but the eyecups are the old style soft, foldable rubber.

The focus wheel is on the small side and I found the turning to be very smooth but somewhat stiff. It takes a bit of getting used to compared with my 10 x 32 ED which is very fast and easy to turn in comparison. Moving from close to far away focus takes a wee while to get there, so maybe not ideal as a birding binocular.

The centrally located focus wheel is accurate, smooth but a bit on the stiff side.

The dioptre setting is conventional. Located under the right ocular; it is very stiff and hard to rotate – just what you want if you don’t have a built-in locking mechanism.


My first impressions of the Canon IS 10x 30’s optics were very good. The 6 degree field is very sharp, nearly all the way to the edge of the field, thanks to built-in field flattening lenses. Contrast is good, although I did detect some weak internal reflections when I pointed it at a bright waning gibbous Moon and some street lights at night. I experienced no blackouts with this model. The view is very comfortable and quite immersive, with a beautifully defined field stop. The eye relief proved perfect for my needs. Glare suppression is also good. By pressing the small button just ahead of the focus wheel, the gyroscopes are activated and the magic begins. The small shaking movements in your hands are cancelled out and even more details pop into view. It’s quite amazing!

I compared the views of the Canon IS 10 x 30 with my GPO Passion 10 x 32 ED in un-stabilised mode, which has the same size field(6 degrees). Going back and forth between the images for a few minutes revealed the latter to be the superior optic. Chromatic aberration could be clearly seen in the Canon on high contrast targets against a grey, overcast December sky. The GPO displayed virtually none in comparison. Furthermore, the GPO displayed noticeably better contrast and a significantly brighter image to boot.  That said, once the IS button was activated, the Canon showed more than the GPO, with very fine details jumping out of the image! The stabilised image clearly resolved finer details on all the targets I tried it on. I would say that the effect was immediately noticeable and dramatic. To verify that the increase in resolution was attributed to the stabilisation, I placed the GPO 10 x 32 on a tripod and compared the images; sure enough, I could see the same additional details- and a bit more besides –  on the same targets, only that they were brighter, better contrasted, and presenting with a little more colour ‘pop’.

Turning to the Pleaides star cluster well placed in the evening winter sky, I compared the non-stabilised view to the IS-activated view. Just pressing the button showed faint stars popping into view which were quite invisible in the non-stabilised image. Consulting some older literature on the effects of image stabilisation, I read that some observers report a gain as much as one stellar magnitude. I wasn’t able to confirm this but I don’t doubt the claim. Again, very impressive!. I would say that the stabilisation makes the small 10 x 30 optics behave more like a significantly larger un-stabilised instrument, like a 10 x 40 or some such.

Looking at a last quarter Moon also showed me more details than the 10 x 32 ED when the IS button on the Canon was engaged. I could resolve finer crater detail, although it did show up more chromatic aberration than the GPO control binocular.

Concluding Thoughts

So what did I think of the Canon IS 10 x 30?

In a word, Groovy!

Sure, it’s not got the best ergonomics and is big and bulky for its aperture, but there is no doubting the technology behind the instrument!  If you can live with its less than ideal handling and lack of weather proofing, you most certainly will be very impressed with it. The optics are very good but maybe not excellent  but when that stabilisation button is activated it leaves even top-rated 32mm models in the dust. Stabilised images just show you more details!

Overall, my experiences of the older Canon IS 10 x 30 was very favourable. Indeed, it has gotten me curious about two smaller models that were released by Canon just a couple of years ago; the Canon IS 8 x 20 and 10 x 20, both of which are significantly smaller and lighter than the 10 x 30. The small exit pupils on these sub 500g models are no deterrent for me either, as I’ve come to appreciate the coupling of good optics with the best part of the human eye. Stars should be beautiful pinpoints in these models!


So, there it is!

Thanks for reading!


De Fideli.

12 thoughts on “Product Review: The Canon IS 10 x 30.

  1. Neil,
    Excellent review, thank you.
    I have just picked up the 18×50 IS AW new from eBay UK for a £450+ discount.
    However, the known problem with ~10 degree backlash in the focus wheel is present. Do you believe that this could get worse or perhaps fail completely?
    If not, then although a bit annoying, I could probably live with it. Canon are unlikely to accept under warranty, due to no retail receipt.
    PS . …. I have all the Svbony SV202 EDs ….due to your recommendations…… good call, thanks for that too.

  2. Hello Gary,

    Congrats on acquiring the 18x 50 IS AW. I have not personally tested this model but I bet it’s an impressive performer. You obviously got it for a great price. My experience with focuser backlash is that it doesn’t get worse, at least without heavy use, so you’ll probably be OK for the foreseeable future. I wonder if a third party could improve the focuser though? Might be worth posting on Birdforum or Cloudynights or some such to see if anyone has any good suggestions.

    Delighted that the Svbony EDs have worked out for you. They represent really good value for money.

    All the best,


  3. Purchased Canon is 10×30 in 2008…great product…unfortunately the rubberized casing disintegrated over time(they were always stored in my home during the winter and never exposed to extreme heat or sunlight)…electronics still work fine but the rubberized casing is now sticky to the touch and is pitting…sent them to canon Canada…they quoted me $640 to repair or $40 less then buying a new pair…the rubber casing issue is a manufacturer’s defect…canon sells high end binoculars and doesn’t stand by their equipment…I loved these but will not be replacing them with another canon product

  4. Hello Joe,

    Thanks for your post. That was very interesting to know and learn, especially for prospective buyers.

    With best wishes,


  5. I purchased a pair of Canon image stabilizer 10 x 30 a few years back.

    After 5 years the anti slip rubber coating degrades and becomes a sticky mess.
    I contacted Canon and they said the product had run out of warranty.
    Ive looked after these binoculars and keep them dry in a waterproof bag,,non sweating
    and this is the result.
    I didnt purchase them from you guys but Canon cant expect me to spend more money on their products.
    Im out
    Thanks for your time and i will gladley send photos to back up what im saying.
    All the best
    Happy Days
    Mark Chapman

  6. Dear Mark,

    Thanks for your message and so very sorry to hear of your issues with the armouring on the Canon IS 10 x 30. As I recall, I didn’t get that impression while using the 8-year old instrument showcased in the article. I don’t know whether if this arises from more frequent use? I certainly get the impression that the owner of the unit I tested didn’t push it particularly hard or use it that frequently for that matter.

    I think the best place to put your findings is on a forum like Cloudynights, particularly the binocular forum. I think prospective buyers ought to know what they are getting in for the long term. It will attract much more attention and will hopefully get Canon to get off their backsides and do something about it. After it reaches critical mass, you can send a link to Canon so that they get the message. I also wonder whether the newest generation of Canon IS binoculars use the same armouring material? I personally would be just as upset if that happened to me. For my part, I will raise this issue in my up-and-coming book so that the message gets out.

    Feel free to send some images to my email address:

    With best wishes,


  7. Hello,
    I’ve looking one Canon IS binocular with good waterproff system, and a good image for birding hobby… In your opinión which is best the New 8/10×20 or the old 10×30?
    Thank you very much

  8. Dear Paul,

    That’s a tough question. I definitely saw an improvement in the image quality of the new Canon IS 8x 20 model over the older 10x 30 I tested prior to this. The former has better coatings . That said, the 10x 30 will be more versatile. I would probably go with the 10x 30.

    Best wishes,


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