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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 13 Mar 2012 (Tuesday) 00:22
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Manual focus on 85L II question

 
iLvision
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Mar 13, 2012 00:22 |  #1
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I never noticed this but is the 85L II supposed to focus (manual focus) ONLY when the camera is turned on?


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Fricks
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Mar 13, 2012 00:25 |  #2

yes and switched to manual focus on the lens




  
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TheBurningCrown
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Mar 13, 2012 00:32 |  #3

Fricks wrote in post #14076362 (external link)
yes and switched to manual focus on the lens

Yep - no FTM.


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Mar 13, 2012 01:21 |  #4

TheBurningCrown wrote in post #14076390 (external link)
Yep - no FTM.

I think FTM means that you can override the AF switch by rotating the focusing ring while the camera is on. 85mm 1.2 II does have FTM, and you have to turn on the camera to focus.


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Daan37
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Mar 13, 2012 01:28 |  #5

Yes, focus by wire and FTM. The one thing I really dislike about this lens. Focus by wire makes the MF ring much too "loose" to make the precise adjustments at 1.2 IMO. Luckily the AF is spot on at 1.2 :)


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The ­ One ­ Pixel ­ Wonder
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Mar 13, 2012 09:42 |  #6

Daan37 wrote in post #14076548 (external link)
Yes, focus by wire and FTM. The one thing I really dislike about this lens. Focus by wire makes the MF ring much too "loose" to make the precise adjustments at 1.2 IMO. Luckily the AF is spot on at 1.2 :)

I love the focus ring on the 85L! Coupled with a focus screen it is wonderful to use!


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TheBurningCrown
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Mar 13, 2012 17:36 |  #7

blueskyoveraquatic wrote in post #14076526 (external link)
I think FTM means that you can override the AF switch by rotating the focusing ring while the camera is on. 85mm 1.2 II does have FTM, and you have to turn on the camera to focus.

Really? I was using one the other day and FTM didn't seem to be working.


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iLvision
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Mar 13, 2012 17:44 |  #8
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FTM doesn't work when switched to AF. Only when it's MF activated. My original question was if manual focus is possible WHEN the camera is turned off and lens is at MF switch.
Guess its only possible when activated to MF when the camera is turned on...


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Todd ­ Lambert
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Mar 13, 2012 17:49 |  #9

The camera is focus by wire, so it needs power in order to focus. It's one of the rare lenses that is this way, and it's mostly because it's moving a major chunk of glass around.

I've never had any issues with MF or FTM on mine, it's flawless as far as I'm concerned.




  
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ccya965041
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Mar 13, 2012 17:50 |  #10

Um,this particular lens need power from the camera to do manual focus,
if you switch off the camera,then your focusing ring just spins without focusing the lens.

So I think when you use this lens,
your battery in the camera will drain faster than usual lens


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TheBurningCrown
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Mar 13, 2012 18:21 as a reply to  @ ccya965041's post |  #11

iluxa007 wrote in post #14080518 (external link)
FTM doesn't work when switched to AF. Only when it's MF activated.

That's not FTM (full-time manual). That's just regular manual focus.


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aboss3
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Mar 13, 2012 18:46 |  #12
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No FTM.


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JeffreyG
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Mar 13, 2012 20:08 |  #13

FTM does work on the 85L II, but you need to have the shutter button half-pressed at the time. If you just turn the ring in AF mode with no shutter button press, the focus-by-wire will be off.

Do a half-press and the lens will focus and stay active. Then turning the ring will move the focus motor.

This is all academic because the focus-by-wire sucks too much to really be useful for manually focusing even if you can overcome the limitations of the EOS viewfinder in seeing accurately enough.


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Daan37
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Mar 14, 2012 01:30 |  #14

Only FTM when the camera is activated. Which is why you want to use the lens in the first place ;)


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iLvision
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Mar 14, 2012 01:32 |  #15
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Daan37 wrote in post #14083094 (external link)
Only FTM when the camera is activated. Which is why you want to use the lens in the first place ;)

Yes, that's obvious but I got a little nervous because I've never had a lens that I couldn't manual focus when the camera is turned off. I just wanted to make sure nothing was wrong with the lens. That's why I asked in the first place :)


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Manual focus on 85L II question
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