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Honored Contributor
Posts: 7,705
Registered: ‎12-07-2012

Re: Canon 100-400 vii lens - Pictures could be sharper Need help!

You may think it logical that a lens/camera can know if it is mounted on a tripod and turn the IS off, it doesn't.  If you notice I said, "... shuts off IS when mounted on a tripod."  They do not do that.  All, well all of the newer IS lens 'sense' movement.  When none is indicated the IS remains locked as I earlier stated.  Older Canon IS lenses did not lock the IS.  However if wind or an earthquake moves the tripod the IS will spring into action.  Tripod or not!   It couldn't if it were shut off.  Another reason this can't happen is the use of quick plates to mount lenses.  If the quick plate were to be left on the lens, as I do a lot, most, of the time, the IS would never work.

 

A lens I am not certain of is the Canon EF 200-400mm f/4L IS USM Lens with Internal 1.4x Extender.  Never touched one. Never even seen a real one. Actually I have no desire to mess with one at 10 grand.

A lot of Canon stuff. Along with, a lot of other stuff.
Honored Contributor
Posts: 7,705
Registered: ‎12-07-2012

Re: Canon 100-400 vii lens - Pictures could be sharper Need help!

Summerlee,

"I need to shoot more..."  Smiley Happy

 

Bingo!  You just discovered the solution.  Practice, practice and more practice.  I teach music at the local school in the Summer Music Program.  I tell all the youngsters, 5th graders, that very "secret" to becoming good at whatever you do.  Whether it be music, baseball, art, etc. or photography.

 

Go outside and shoot.

A lot of Canon stuff. Along with, a lot of other stuff.
Honored Contributor
Posts: 7,705
Registered: ‎12-07-2012

Re: Canon 100-400 vii lens - Pictures could be sharper Need help!

"In chapter of the article, they discuss IS and a tripod."

 

All I can say is test it for yourself.  Don't be like Tommy Boy and just read stuff to draw your conclusions.  Try it, you may be surprised.  Again, I am not saying that every lens is this way just that I have not seen it on the ones I have tested. 

 

This is a big reason I buy so many lenses.  I am just curious on how they really work.  I see it as a fun time 'hobby' if you will.

 I could have a worse hobby like gofl, I guess. Smiley LOL

A lot of Canon stuff. Along with, a lot of other stuff.
Esteemed Contributor
Posts: 4,723
Registered: ‎08-13-2015

Re: Canon 100-400 vii lens - Pictures could be sharper Need help!


ebiggs1 wrote:

"In chapter of the article, they discuss IS and a tripod."

 

All I can say is test it for yourself.  Don't be like Tommy Boy and just read stuff to draw your conclusions.  Try it, you may be surprised.  Again, I am not saying that every lens is this way just that I have not seen it on the ones I have tested. 

 

This is a big reason I buy so many lenses.  I am just curious on how they really work.  I see it as a fun time 'hobby' if you will.

 I could have a worse hobby like gofl, I guess. Smiley LOL


I turn it off, anyway, whenever I'm mounted on a tripod.  The feature is not something I rely on, but it is something to be aware of, that being that IS can go to sleep  

You can occasionally hear IS motors at work in some lenses, which is what led me to research it and finding that article.  I have found that IS can be significant drain on your camera battery, because it seems like it is always active for as long as the camera is "awake."  That article confirmed by suspicions.

Your reaction of the article's content is the identical reaction when I have posted it in the past.  You seem to have a bit of experience on the subject of IS on a tripod.  Do you have any recommendations on a testing procedure?  I wouldn't know where to begin.  I always turn it off, because it doesn't seem to help with shutter vibrations, anyway.  Maybe IS doesn't help with shutter vibrations because it has gone to sleep!

Just as most Standard IS algorithms are not suited for panning, most of the IS algorithms may not be suited for the type of harmonic vibrations that a tripod may create.  I suppose you could almost say that certain lenses have an extra hidden mode, tripod mode.

Have a safe and happy Memorial Day, Ernie, and the rest of the gang, too.

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"I don't rent software. I use Photoshop CS6, ACR 9.8 and Lightroom 6.8 ."
Frequent Contributor
Posts: 25
Registered: ‎09-17-2016

Re: Canon 100-400 vii lens - Pictures could be sharper Need help!

Thanks! Yes, practice... - I played the piano for years and that is pretty much all I heard (as a teen). Glad I listened.
Frequent Contributor
Posts: 25
Registered: ‎09-17-2016

Re: Canon 100-400 vii lens - Pictures could be sharper Need help!

Wadizzle, for a second, I thought the above post was to me, then realized it's to ebiggs. Anyhow, just wanted to chime in for a sec and wanted to add that the first time I heard a "noise" coming from my lens, I had no clue it was the IS until I looked it up. It's like a clicking sound. Rainy day here on Long Island....
Honored Contributor
Posts: 7,705
Registered: ‎12-07-2012

Re: Canon 100-400 vii lens - Pictures could be sharper Need help!

"Do you have any recommendations on a testing procedure?"

 

No, just try various things.  All the Moon shots I posted had ther IS left on.  Not that, that is proof but another indication I rarely turn it off.

 

" I wouldn't know where to begin."

 

I don't believe that for a moment.  You are too knowledgeable to say that.

 

 

 

"Have a safe and happy Memorial Day, Ernie, and to all of yours too, and the rest of the gang, too."

 

And the whole Canon Community.

I am playing a Memorial Day Service today at 11:00 today.  I am sure it will be moving.  It always is.

A lot of Canon stuff. Along with, a lot of other stuff.
Esteemed Contributor
Posts: 4,723
Registered: ‎08-13-2015

Re: Canon 100-400 vii lens - Pictures could be sharper Need help!


Summerlee340 wrote:
Wadizzle, for a second, I thought the above post was to me, then realized it's to ebiggs. Anyhow, just wanted to chime in for a sec and wanted to add that the first time I heard a "noise" coming from my lens, I had no clue it was the IS until I looked it up. It's like a clicking sound. Rainy day here on Long Island....

According to the list at the link, the EF 100-400 f/4.5-5.6L IS II USM has what I'm going to call IS Tripod Mode.  I think it is something that is good to know about.  There is no way to tell when the IS is enabled or has automatically disabled itself, except for the lack of the occasional quiet "scratch" noise from the lens.  I have never heard the IS scratching noise noise from my 100-400, nor from my EF 70-200 f/2.8L IS II USM, either, under any circumstances.

 

Seeing how IS tends to be active for as long as the camera is "awake", I think the fact that I seem to get WAY more battery life with the 100-400 than with other lenses not one the list coul be evidence that the lens does disable IS when on a tripod, and also when it detects excessive movement such as when you're walking around, gently swinging the camera.

I am in the NYC area, too, and it's been pouring off and on.  I wanted to attend an event with Osprey an Blackhawk helicopters, but not if it is raining buckets. 

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"I don't rent software. I use Photoshop CS6, ACR 9.8 and Lightroom 6.8 ."
Frequent Contributor
Posts: 25
Registered: ‎09-17-2016

Re: Canon 100-400 vii lens - Pictures could be sharper Need help!

I know I said I would take more photos with the 100-400 on my tripod, but I had my 55-250 on, and saw tons of birds out of my window, so just went with that lens-hand held, for now.  Here are two photos.  The one of the woodpecker - I really tried to focus on the eye. The other birds, it was a bit harder to do that.  So when I focus on the eye, it appears that the surrounding area is a little sharper. I need more practice, but wanted to show you two more photos since. Again, I know it's on my other lens and not pertinent to my original question.  On another note, I downloaded DPP free from Canon. I will need a tutorial on how to use that. Wow - don't know where to begin. I wish I was retired so I could play more with this.

 

Baby grackles.JPGBaby grackles.JPG

Honored Contributor
Posts: 7,705
Registered: ‎12-07-2012

Re: Canon 100-400 vii lens - Pictures could be sharper Need help!

Those are nice shots.

 

Whether the lens turns itself off on a tripod is not the issue.  Whatever works for you is the issue.  If you feel that switching the IS off helps, by all means do it.  I don't see that so I don't mess with it and leave it on most all the time.

A lot of Canon stuff. Along with, a lot of other stuff.
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