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Should you turn IS off or not; read what Canon Engineers say.
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Mar 16, 2017 14:00:55   #
JBruce Loc: Northern MN
 
Here is the dope direct from Canon Engineers via Bryan @ The Digital Picture. This just might clear up some misconceptions I see here on the Hog.
http://r20.rs6.net/tn.jsp?f=001p7czfWgJwSp7oSY7kiIeS1R8ouLa-wfsetIQJvMYDdPQhEljQBB6u0VpdAOtcjTUCaT1Okc92TlhYg8REsdupHKpLVC97CVQm4nZGJoUasi44vSPJkTVgqE0x-WDizxhLuu2TP95OTCr-78cNGWi14Rbcb-yw5Wkh1qfHdvqzB4tpw9aN_n-_aYgbqGUdbfKi77ebSm3z7zrbL71cfTgSRQ42Tbhgxe22fTW5bzrxa8=&c=OA3r5PGRJnv4OBeCjpN9mcmYLebbPS6aMeGJDg1_v2-h4CmQ9Nattw==&ch=sSODIrN_8CF3M4DHMciqbhIj4-zWdbAOYvR-co_mtnuYckblAL70xg==


Read 'em and weep.

JBruce

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Mar 16, 2017 14:10:48   #
Apaflo Loc: Anchorage, Alaska
 
JBruce wrote:
Here is the dope direct from Canon Engineers via Bryan @ The Digital Picture. ...

That is not directly from Canon Engineers. It is as interpreted by Canon marketing...

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Mar 16, 2017 14:24:14   #
JBruce Loc: Northern MN
 
Read the 5th paragraph again, Apaflo --

"Here's one that never gets discussed among sports, action and wildlife shooters, but which our engineers HAVE said is a benefit of Image Stabilization, even at the fastest shutter speeds."

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Mar 16, 2017 14:35:11   #
Apaflo Loc: Anchorage, Alaska
 
JBruce wrote:
Read the 5th paragraph again, Apaflo --

"Here's one that never gets discussed among sports, action and wildlife shooters, but which our engineers HAVE said is a benefit of Image Stabilization, even at the fastest shutter speeds."

That verifies exactly what I said! The direct source for that is someone who suggests they are a Canon employee ("our engineers"), who is absolutely not an engineer. There is no direct quote from the engineer.

Wanna bet on whether the directly quoted statement was made by a marketing dweeb? That is the job that marketing does...

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Mar 16, 2017 14:42:13   #
JBruce Loc: Northern MN
 
I guess you can read the quote however you want; obviously we read it differently, nuff said. Besides, too busy to get into a pissing contest.

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Mar 16, 2017 15:00:48   #
Apaflo Loc: Anchorage, Alaska
 
JBruce wrote:
I guess you can read the quote however you want; obviously we read it differently, nuff said. Besides, too busy to get into a pissing contest.

Don't read for what "you want", read what is actually said.

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Mar 16, 2017 16:01:25   #
rwilson1942 Loc: Houston, TX
 
Link doesn't work for me.

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Mar 16, 2017 17:59:49   #
selmslie Loc: Fernandina Beach, FL, USA
 
Apaflo wrote:
That is not directly from Canon Engineers. It is as interpreted by Canon marketing...

I guess you missed the part that says it makes the autofocus work better, "This can be beneficial in a number of ways, from subtle benefits in frame-to-frame composition when following moving subjects, to being able to keep an AF point solidly upon a detailed area of a moving subject." That makes sense whether or not an actual engineer says it. IS may actually have no effect on the image when the shutter speed is very high but it helps in other ways.

If you have to be an engineer to say something about IS and feedback loops then I guess you are not qualified.

I am an engineer and know plenty of engineers. You are certainly no engineer.

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Mar 17, 2017 06:58:14   #
machia Loc: NJ
 
selmslie wrote:
I guess you missed the part that says it makes the autofocus work better, "This can be beneficial in a number of ways, from subtle benefits in frame-to-frame composition when following moving subjects, to being able to keep an AF point solidly upon a detailed area of a moving subject." That makes sense whether or not an actual engineer says it. IS may actually have no effect on the image when the shutter speed is very high but it helps in other ways.

If you have to be an engineer to say something about IS and feedback loops then I guess you are not qualified.

I am an engineer and know plenty of engineers. You are certainly no engineer.
I guess you missed the part that says it makes the... (show quote)

I'm a civil engineer , my brother is a software engineer , my nephew wishes he was a train engineer , and some here think they are optical engineers ! lol
Fascinating read about IS .
I learned something today .
Great post .

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Mar 17, 2017 07:00:29   #
Goober Loc: Southeastern PA
 
Apaflo wrote:
That verifies exactly what I said! The direct source for that is someone who suggests they are a Canon employee ("our engineers"), who is absolutely not an engineer. There is no direct quote from the engineer.

Wanna bet on whether the directly quoted statement was made by a marketing dweeb? That is the job that marketing does...


Forget to take your meds today?

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Mar 17, 2017 07:39:48   #
hj Loc: Florida
 
Perhaps brain freeze in Alaska....

Apaflo wrote:
That verifies exactly what I said! The direct source for that is someone who suggests they are a Canon employee ("our engineers"), who is absolutely not an engineer. There is no direct quote from the engineer.

Wanna bet on whether the directly quoted statement was made by a marketing dweeb? That is the job that marketing does...

Reply
 
 
Mar 17, 2017 09:59:38   #
dmc Loc: Montgomery, AL
 
Thanks JBruce....very informative and useful info.

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Mar 17, 2017 10:03:57   #
catchlight.. Loc: Wisconsin USA- Halden Norway
 
machia wrote:
I'm a civil engineer , my brother is a software engineer , my nephew wishes he was a train engineer , and some here think they are optical engineers ! lol
Fascinating read about IS .
I learned something today .
Great post .


...and I'm an automotive engineer.

Why would the information get published directly from the engineer?...usually its handled by marketing or PR outlets.

Very informative and makes more sense than what is written on a blog by a self proclaimed expert...

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Mar 17, 2017 10:08:13   #
camerapapi Loc: Miami, Fl.
 
I do not use Canon cameras and lenses. Till now Nikon has recommended to have VR off if the camera is on a tripod. I got the same answer from Olympus.
If I am not using long teles, like my old 80-400 VR I go to shutter priority and keep my shutter speeds way pass the focal length of the lens in use. That for hand held pictures only.
When using my long lens I keep VR on irrespective of shutter speed in use. It is a fact that VR uses more juice but that should not stop anyone from using it. In my humble experience AF is not affected by using VR.
I cannot discuss more modern lenses with VR because I do not know how they behave.
A tripod, when possible, has always been a very steady platform. VR is convenient and is of great help when a tripod cannot be used.

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Mar 17, 2017 10:49:26   #
Nalu Loc: Southern Arizona
 
Thank you for the post. Provide information to people and they still simply want to chew the cover off the book and use it to start a fire. I have heard from Canon reps and professional photographers using the latest Canon gear. What do they recommend? Leave it on, all the time, for a subject with any movement. I am not talking about landscape photographers on a tripod, but any action photographer.

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