Approve the Cookies
This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and our Privacy Policy.
OK
Index  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Guest
New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Register to forums    Log in

 
FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 20 Oct 2014 (Monday) 21:09
Search threadPrev/next
sponsored links
(this ad will go away when you log in as a registered member)

My lens won't focus initially????

 
Ralph ­ III
Goldmember
1,345 posts
Likes: 16
Joined Mar 2009
Location: Alabama
     
Oct 20, 2014 21:09 |  #1

Hello All,
I'm having a focus issue with my Canon 15-85mm lens and need some input please.

I noticed a few weeks ago that the lens takes a few seconds to focus initially after it has been sitting unused? This is the case with the manual focus ring as well.

It's like it falls asleep and then takes a few seconds to wake up? Once it wakes up, the lens focuses as normal. However, let it sit for a short period and once again it takes a second or two for it to re-engage the next time you go to use it?

Any insight?
Ralph

P.S. The lens has never been dropped or even taken a hard bump. I haven't been using it much lately though (months) so wonder if that has something to do with it?


"SOUTHERN and SAVED!"
POTN FEEDBACK...............ITEMS FOR SALE

  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)
DreDaze
happy with myself for not saying anything stupid
Avatar
18,190 posts
Gallery: 45 photos
Likes: 2611
Joined Mar 2006
Location: S.F. Bay Area
     
Oct 20, 2014 22:08 |  #2

i don't understand how it's the case with the manual focus ring as well?

manual focusing it is slow? turn the ring faster :)


Andre or Dre
gear list
Instagram (external link)
flickr (external link)

  
  LOG IN TO REPLY
mannetti21
Goldmember
Avatar
3,108 posts
Gallery: 113 photos
Best ofs: 1
Likes: 362
Joined Sep 2010
Location: Connecticut
     
Oct 20, 2014 22:51 |  #3

DreDaze wrote in post #17224411 (external link)
manual focusing it is slow? turn the ring faster :)


:mrgreen: :mrgreen: :mrgreen: :mrgreen: :mrgreen: :mrgreen: :mrgreen:


To the OP, are you mistaking the delay in focusing for the actual wake-up time of the camera? With the power switch set to ON, the camera goes into its "sleep mode" when it hasn't been used for something like 3 or 5 minutes. After touching a button (like the shutter button), it takes a second or two for the camera to start-up again.



My Buyer/Seller Feedback

  
  LOG IN TO REPLY
davidfarina
Goldmember
Avatar
3,357 posts
Gallery: 52 photos
Best ofs: 2
Likes: 1033
Joined May 2013
     
Oct 21, 2014 04:39 |  #4

mannetti21 wrote in post #17224458 (external link)
:mrgreen: :mrgreen: :mrgreen: :mrgreen: :mrgreen: :mrgreen: :mrgreen:


To the OP, are you mistaking the delay in focusing for the actual wake-up time of the camera? With the power switch set to ON, the camera goes into its "sleep mode" when it hasn't been used for something like 3 or 5 minutes. After touching a button (like the shutter button), it takes a second or two for the camera to start-up again.

^^^^ my guess aswell


Sony A7RII | Sony A7S
EF 40 | EF 70-300L | FD 35 Tilt-Shift
FE 16-35 | FE 28 | FE 90
CV 15 4.5 III | CV 40 1.4 MC | Summilux 50 ASPH
Website (external link) | 500px (external link)

  
  LOG IN TO REPLY
Reservoir ­ Dog
A Band Apart
Avatar
3,279 posts
Gallery: 469 photos
Best ofs: 9
Likes: 435
Joined Jan 2013
Location: Out of the pack
     
Oct 21, 2014 08:02 |  #5

mannetti21 wrote in post #17224458 (external link)
To the OP, are you mistaking the delay in focusing for the actual wake-up time of the camera? With the power switch set to ON, the camera goes into its "sleep mode" when it hasn't been used for something like 3 or 5 minutes. After touching a button (like the shutter button), it takes a second or two for the camera to start-up again.

Isn't something what it's called "having a lightspeed moment" on this forum ?

IMAGE: http://biodork.files.wordpress.com/2010/12/laughing_cat.gif

150 Free online photos editing application (external link) / 100 Free Desktop Photo Editor Software (external link) / Free Photography eBooks (external link) / My photography blog (external link)

  
  LOG IN TO REPLY
Ralph ­ III
THREAD ­ STARTER
Goldmember
1,345 posts
Likes: 16
Joined Mar 2009
Location: Alabama
     
Oct 22, 2014 17:44 as a reply to  @ Reservoir Dog's post |  #6

I'm sorry, I was actually asking for some help and/or insight. Those responses were neither helpful nor insightful. However, let me explain in simpler terms.

A. If the lens sits for a bit, the focus ring doesn't initially engage (manual). You have to turn the focus ring several times (back/forth) prior to it catching and then performing as normal. This is irrelevant as to whether it is mounted on the camera or not.

B. If the lens is mounted on the camera. It takes several seconds before the lens will actually focus upon waking the camera. You can hear the motor running, seemingly attempting to engage, but again it takes several seconds for it to do so; after which it then performs normally.

This is long after the camera has awaken, given it only takes a split second to wake a xxd camera.

Thanks,
Ralph


"SOUTHERN and SAVED!"
POTN FEEDBACK...............ITEMS FOR SALE

  
  LOG IN TO REPLY
DreDaze
happy with myself for not saying anything stupid
Avatar
18,190 posts
Gallery: 45 photos
Likes: 2611
Joined Mar 2006
Location: S.F. Bay Area
     
Oct 22, 2014 18:04 |  #7

that's not explaining in simpler terms...it's explaining in more detail...which helps...


part of me wonders if the AF/MF switch has anything to do with it
canon offers a lens maintenance for $59 for that lens, i wonder if sending it to them would fix it

this is their 11pt inspection list:
Canon 11-Point EF Lens Maintenance Service
1. Clean External Lens Optics
2. Clean External Lens Body
3. Check Lens Attachment and Removal
4. Check Camera/Lens Communication
5. Check External Lens Barrel
6. Check External Operation of Focus, Iris and Zoom Rings
7. Check Operation of Tripod Collar (if applicable)
8. Check Aperture Operation
9. Perform Simple Image Test (exposure, color balance, resolution)
10. Tighten External Screws
11. Verify Firmware Version and Update if Required


Andre or Dre
gear list
Instagram (external link)
flickr (external link)

  
  LOG IN TO REPLY
mwsilver
Goldmember
3,899 posts
Gallery: 51 photos
Likes: 491
Joined Oct 2011
Location: Central New Jersey
     
Oct 22, 2014 22:11 |  #8

DreDaze wrote in post #17228010 (external link)
that's not explaining in simpler terms...it's explaining in more detail...which helps...


part of me wonders if the AF/MF switch has anything to do with it
canon offers a lens maintenance for $59 for that lens, i wonder if sending it to them would fix it

this is their 11pt inspection list:
Canon 11-Point EF Lens Maintenance Service
1. Clean External Lens Optics
2. Clean External Lens Body
3. Check Lens Attachment and Removal
4. Check Camera/Lens Communication
5. Check External Lens Barrel
6. Check External Operation of Focus, Iris and Zoom Rings
7. Check Operation of Tripod Collar (if applicable)
8. Check Aperture Operation
9. Perform Simple Image Test (exposure, color balance, resolution)
10. Tighten External Screws
11. Verify Firmware Version and Update if Required

Nothing you suggested should have had any affect on the focus ring engaging during manual focusing, which is what at the OP is apparently saying. This is a new one on me. I think a trip to Canon may be in order.


Mark
Canon 7D2, 60D, T3i, T2i, Sigma 18-35 f/1.8, 30 f/1.4. Canon EF 70-200 L f/4 IS, EF 35 f/2 IS, EFs 10-18 STM, EFs 15-85, EFs 18-200, EF 50 f/1.8 STM, Tamron 18-270 PZD, B+W MRC CPL, Canon 320EX, Vanguard Alta Pro 254CT & SBH 250 head. RODE Stereo Videomic Pro, DXO PhotoLab Elite, ON1

  
  LOG IN TO REPLY
Canon ­ Bob
Goldmember
2,056 posts
Likes: 51
Joined May 2007
Location: Poitou-Charentes, France
     
Oct 23, 2014 03:17 |  #9

I had exactly the same symptoms with my old 17-35/2.8. No AF and or manual focus until I'd spun the focus ring a few times then it'd be fine for the rest of the day.
It was a worn follower in the focus helicoil.

Bob


1Dx2 (2), 5DSR, 1Ds3, 1D4, 5D2(590nm), 5D2(720nm) EF600 EF400 EF300-II EF300 EF200 EF200-II EF180L EF135L EF100 EF85-II EF50L TS-E17/4 TS-E24L-II TS-E45 TS-E90 MP-E65 EF70-200-II EF24-70/2.8-II EF16-35/4 EF8-15/4 EF11-24/4 Zeiss 15/2.8 21/2.8 25/2 28/2 35/1.4 35/2 50/2 85/1.4 100/2 135/2 T/C's L-SC & a WIFE!

  
  LOG IN TO REPLY
Levina ­ de ­ Ruijter
I'm a bloody goody two-shoes!
Avatar
18,440 posts
Gallery: 319 photos
Best ofs: 10
Likes: 7629
Joined Sep 2008
Location: Amsterdam, The Netherlands, EU
     
Oct 23, 2014 03:53 |  #10

Reservoir Dog wrote in post #17224923 (external link)
Isn't something what it's called "having a lightspeed moment" on this forum ?

That would be a LightRules moment: https://photography-on-the.net/forum/showthre​ad.php?t=430473


Levina (not Lavina, Lavinia, Levinia, Ludwina and what not, mkay?)
My flickr (external link)

  
  LOG IN TO REPLY
Reservoir ­ Dog
A Band Apart
Avatar
3,279 posts
Gallery: 469 photos
Best ofs: 9
Likes: 435
Joined Jan 2013
Location: Out of the pack
     
Oct 23, 2014 05:20 |  #11

Levina de Ruijter wrote in post #17228633 (external link)
That would be a LightRules moment: https://photography-on-the.net/forum/showthre​ad.php?t=430473

Yeesss this nickname > LightRules! thanks for the exact info and the link :D


150 Free online photos editing application (external link) / 100 Free Desktop Photo Editor Software (external link) / Free Photography eBooks (external link) / My photography blog (external link)

  
  LOG IN TO REPLY
LightRules
"flat out embarrassing"
Avatar
9,909 posts
Likes: 1
Joined Jun 2005
     
Oct 26, 2014 00:19 as a reply to  @ Reservoir Dog's post |  #12

Haha, funny mistake OP...we will all learn from your mistake!

:rolleyes:




  
  LOG IN TO REPLY
timbop
Goldmember
Avatar
2,980 posts
Gallery: 1 photo
Likes: 18
Joined Apr 2007
Location: Southern New Jersey, USA
     
Oct 26, 2014 09:13 |  #13

I would make a suggestion or guess as to what is going wrong, but since I would be guessing based on a description my insights would not be helpful so I'll refrain from saying anything including that the lens might need to go to canon for a checkup.


Current: 5DM3, 6D, 8mm fish, 24-105/4IS, 35/2IS, 70-200/2.8IS, 85/1.8, 100-400/IS v1, lensbaby composer with edge 80, 580's and AB800's
Formerly: 80D, 7D, 300D, 5D, 5DM2, 20D, 50D, 1DM2, 17-55IS, 24-70/2.8, 28-135IS, 40/2.8, 50/1.8, 50/1.4, 70-200/4IS, 70-300IS, 70-200/2.8, 100 macro, 400/5.6, tammy 17-50 and 28-75, sigma 50 macro & 100-300

  
  LOG IN TO REPLY
msowsun
Cream of the Crop
Avatar
9,243 posts
Gallery: 14 photos
Best ofs: 1
Likes: 270
Joined Jul 2007
Location: Oakville Ont. Canada
     
Oct 26, 2014 09:38 |  #14

It sounds like the "clutch" in the Ring Type USM is slipping. Here is a thread on how one guy fixed it himself: https://photography-on-the.net …/showthread.php​?p=6505691

Another similar thread: http://photo.net …gital-camera-forum/00QHjI (external link)

Numbered in the order they were removed, we can see the various rings:
1. Retaining ring,
2. Wavy spring,
3. Felt-like spacer,
4. USM motor stator,
5. USM motor armature.


IMAGE: http://i2.photobucket.com/albums/y17/msowsun/photo%20stuff/Photo15/__IMG_6132.jpg~original

I found this PDF file online which explains the operation of USM AF in great detail: http://dougkerr.net …in/articles/Can​on_USM.pdf (external link)

Mike Sowsun / S110 / SL1 / 80D / EF-S 24mm STM / EF-S 10-18mm STM / EF-S 18-55mm STM / EF-S 15-85mm USM / EF-S 18-135mm USM / EF-S 55-250mm STM / 5D3 / Samyang 14mm 2.8 / EF 40mm 2.8 STM / EF 50mm 1.8 STM / EF 100mm 2.0 USM / EF 100mm 2.8 USM Macro / EF 24-105mm IS / EF 70-200mm 2.8L IS Mk II / EF 1.4x II
Full Current and Previously Owned Gear List over 40 years Flickr Photostream (external link)

  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)

4,045 views & 0 likes for this thread
My lens won't focus initially????
FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
AAA
x 1600
y 1600

Jump to forum...   •  Rules   •  Index   •  New posts   •  RTAT   •  'Best of'   •  Gallery   •  Gear   •  Reviews   •  Member list   •  Polls   •  Image rules   •  Search   •  Password reset

Not a member yet?
Register to forums
Registered members may log in to forums and access all the features: full search, image upload, follow forums, own gear list and ratings, likes, more forums, private messaging, thread follow, notifications, own gallery, all settings, view hosted photos, own reviews, see more and do more... and all is free. Don't be a stranger - register now and start posting!


COOKIES DISCLAIMER: This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and to our privacy policy.
Privacy policy and cookie usage info.


POWERED BY AMASS forum software 2.1forum software
version 2.1 /
code and design
by Pekka Saarinen ©
for photography-on-the.net

Latest registered member is Wuu
967 guests, 358 members online
Simultaneous users record so far is 15144, that happened on Nov 22, 2018

Photography-on-the.net Digital Photography Forums is the website for photographers and all who love great photos, camera and post processing techniques, gear talk, discussion and sharing. Professionals, hobbyists, newbies and those who don't even own a camera -- all are welcome regardless of skill, favourite brand, gear, gender or age. Registering and usage is free.