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gdjsky01
sage
Reged: 11/25/06
Posts: 232
Loc: Southern California
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I was curious if anyone has heard of this failure? I did a search through the groups archives but did not see a direct hit. So here it is:
After activating the IS system, a short period of time will pass and then there is a squealing noise and the image goes completely bonkers (vibrates all over the FOV). It seems, though not proven conclusively, that the more movement one makes to the binoculars, the more rapid the onset of the problem. But the problem will occur. And it will not stop until you release the button and turn off the IS system.
Ideas?  It sounds like a bearing failure or a lubricant gone dry. Of course I will contact Canon USA.
Best wishes
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Jeff Gortatowsky
Fullerton, California
Teleport 18cm f/5.7 Truss Newt
Starsplitter 20cm f/6 4 Pole Newt
Litebox 45cm f/4.5 Truss Newt
Televue TV-101 10cm f/5.4 APO
Cave Astrola Deluxe 25cm F/6 Newtonian
Vixen/Celestron CP-80 / f/11.7 Archro
Coronado SolarMax 60 f/6.6 H-Alpha
Orion 100mm f/6 archomat w/ Lunt B600 CaK Module
Starmaster 11 ELT 28cm f/4.5 -sold 
TMB-180 18cm F/9 - sold
AP130EDT 13cm F/8 - sold
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CESDewar
GorillAstronomer
Reged: 01/16/05
Posts: 2069
Loc: Morganton, GA, USA
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This happened one time to my 18x50's during the warranty period. I don't recall any "squealing" per se, but the view started "fibrillating" like crazy. It did it intermittently at first and then just got worse and worse.
I sent them off to Canon to get fixed and they came back fixed but completely out of alignment. Sent them back again and that time they came back well collimated and I've never had a problem with them since (and that was close to 2 years ago now).
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KBK
member
Reged: 08/05/09
Posts: 67
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Sounds as if the feedback system is drifting out of calibration. I mentioned in another thread that is would be a variable and might need tuning. As it is electronics in there and of modern design and using surface mount components it is only a matter of time before the onset of failure of some sort. Near 100% Odds that they are using surface mount electrolytic capacitors in given sections of the electronics and they are ALL (that capacitor type) bound to fail in about 10 years of use under normal household (in home electronics use) conditions.
10 years from now everyone on the planet may have nothing but absolute disdain for all these electronic based IS binos. This, due to looming failure/lifespan periods that have yet to expire or reach completion.
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It is the image of the ungraspable phantom of life; and this...is the key
to it all.
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DJB
Carpal Tunnel
Reged: 02/23/05
Posts: 1589
Loc: Lisle NY
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Hi KBK,
You are correct in your analysis here. But, least we not forget, some of the caps are actually printed on the circuit boards.
Now, how can this be done. The smaller the circuits become, the smaller the cap(s) becomes as well. In other words, the cap on a circuit board can become just a winding, convoluted coil on the board, which gives the necessary charge-discharge of the "cap. capacitance"
I have no idea what the Canon ISs' use, but, for long-term reliabity, I assume that Canon would have thought this out clearly beforehand.
Or, perhaps, Canon needs early failure for the continuation of the species, if you will. Just my thoughts.
Best regards,
Dave.
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GaryS
super member
Reged: 10/30/06
Posts: 191
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Quote:
Sounds as if the feedback system is drifting out of calibration. I mentioned in another thread that is would be a variable and might need tuning. As it is electronics in there and of modern design and using surface mount components it is only a matter of time before the onset of failure of some sort. Near 100% Odds that they are using surface mount electrolytic capacitors in given sections of the electronics and they are ALL (that capacitor type) bound to fail in about 10 years of use under normal household (in home electronics use) conditions.
10 years from now everyone on the planet may have nothing but absolute disdain for all these electronic based IS binos. This, due to looming failure/lifespan periods that have yet to expire or reach completion.
And disdain for *all* consumer electronics since SM parts have been the standard in consumer goods for more than 20 years. Clearly, we're not seeing this rate of failure.
Given the number of individual SM components in even simple electronic devices, and assuming a bell-curve distribution for the failures, it seems inconceivable that any device could last more than a year or two if the failure rate you cite is correct.
As for the Canon IS binoculars, they're new enough that their long-term fate isn't yet known. The 15x45s appeared around '96 and so far haven't seemed to have experienced the massive failure you predict. I personally own 2 Canon binos that are 10 years+ old and have seen no sign of performance degradation. That's just two data points, but clearly if my experiences were atypical, we'd be hearing about it.
Regards,
Gary
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Sky & Telescope Contributing Editor
SkyNews Columnist & Blogger
www.GarySeronik.com
A place for stargazing enthusiasts.
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KBK
member
Reged: 08/05/09
Posts: 67
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Part of my disdain for surface mount components comes from being an audio fanatic. I hate the surface mount stuff with a passion. Surface mount capacitors DO definitely have a failure rate that 'far exceeds' that of conventional thru-hole capacitor types. This much is known to be true. (the quotes are used as the number is something like 4x higher failure rate, ie, definitely not a meandering comparative that can be ignored.)
As someone who started as a tech, I see everyone's failures, not the their successes. Like a cop who become quickly cynical, I'm only called in when things go bad. Which does lead to a stilted viewpoint.
As for standard consumer goods, that does not mean quality, it just means standard consumer goods. 
In the world of audio, for example, there must be a clean 1,000 brands of high quality audio equipment that the average person has never heard of.
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It is the image of the ungraspable phantom of life; and this...is the key
to it all.
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