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Old Tuesday 9th January 2018, 22:30   #26
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Originally Posted by denco@comcast.n View Post
One big advantage of the Canon is it has an AFOV of 65 degrees
Apparent field of view of the 10x42L is 59.2 degrees according to Canon themselves - see

I'm just wondering how many commentators in this thread, kabsetz apart, have had a good look through both instruments?

Last edited by Patudo : Tuesday 9th January 2018 at 22:32.
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Old Wednesday 10th January 2018, 00:29   #27
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Looks like Canon's AFOV spec is a calculation using the ISO method. Neither that method nor the 65 simple calculation takes distortion into account. Swaovski's spec appears to be an actual measurement of the "true" AFOV including distortion.

Without measuring it we can't know the "true" AFOV of the Canon, but since we know it has some pincushion distortion, it's reasonable to to assume a value somewhere close to the midpoint between 59.2 and 65.
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Old Wednesday 10th January 2018, 10:46   #28
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Canon IS 10x42 vs an "alpha" non-IS 12x (e.g. Swaro. EL 12x50): can anyone comment from experience? Thanks!
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Old Wednesday 10th January 2018, 12:48   #29
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Depends how still you reckon you can hold the 12x as the stabilisation allows you pick out really small details as the view isnt moving about.

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Old Wednesday 10th January 2018, 17:00   #30
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Yes, I based the question on that concept--also aware that different non-IS 12x models, with differing weight and balance, will differ in stability in the hands of different users--but I am seeking reports of actual experience of "side-by-side" comparisons, in terms of seeing detail.
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Old Wednesday 10th January 2018, 17:19   #31
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Hi Adhoc.

I think that you will find that if both are handheld, the Canon IS model will show far more detail. I didn't have a 12x Swarovski, but all of my Canon IS models run circles around my Swarovski 10x EL's and SLC's.


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Old Wednesday 10th January 2018, 20:37   #32
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I've tried the Canon 10x42L IS WP several times, but the 16mm eye relief always turned out to be a deal breaker. Those who use prescription eyeglasses owe it to themselves to evaluate this aspect before buying. Near sighted folks will probably be more comfortable than far sighted ones.

Understanding optics is child's play compared to understanding child's play.
"Science is the belief in the ignorance of the experts." Richard Feynman

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Old Friday 12th January 2018, 21:43   #33
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As a Canon owner I'll throw in my 1 cents worth.

If you have a narrow IPD with a big nose or wear glasses when viewing try before you buy. Clearance can be tight.

The Canon performs optically slightly better with the IS off. If the IS were to fail it's not the end of the world.

Swarovski are sold by specialist dealers and it's hard to get a substantial discount. I tried and failed to buy a SLC 8x56 recently.
Canon on the other hand, is carried by places who sell washing machines and computers and here in England you can get great deals if you keep your eyes open !

I used to run an arbitrage business selling prestige German brands into the US in situations where the official US importers jacked the prices up to unrealistic levels.
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