Olympus UK E-System User Group
Olympus UK E-System User Group

Join our unique resource for Olympus Four Thirds E-System DSLR and Pen and OM-D Micro Four Thirds photographers. Show your images via our free e-group photo gallery. Please read the e-group.uk.net forum terms and conditions before posting for the first time. Above all, welcome!


Go Back   Olympus UK E-System User Group > Cameras, lenses and system accessories > Lens focus > Standard zoom and mid range

Standard zoom and mid range Lenses with focal lengths larger than 12mm, but no longer than 60mm, includes standard zooms and portrait primes plus some macro lenses.

Reply
 
Thread Tools Display Modes
  #1  
Old 14th November 2013
srtgray srtgray is offline
Full member
 
Join Date: Oct 2009
Location: Switzerland
Posts: 84
Thanks: 0
Thanked 2 Times in 2 Posts
Likes: 0
Liked 7 Times in 6 Posts
14-35 hunting focus in low light

Just bought my first SHG lens, the 14-35 f/2. I am very impressed with the overall sharpness, and the shallow DoF at f/2, but I'm having problems with it in low light. It just seems to seek all the time, even with the flash giving AF assist. It seems to be much better in C-AF on my E-5, but overall I'm getting fewer "keepers" than I did with the 14-54 on my old E-3.

Also once it starts trying to focus, it won't stop until it finds focus and fires, which can be some time after the shot has passed. Is there a setting on the E-5 to make it stop trying to take a picture after I take my finger off the shutter button?
__________________
Thomas
--
E-5+HLD-4x2; E-1+SHLD-2; 8mm FE; 7-14; 11-22; 14-35; 35-100; 135-400; EC-14; EX-25; FL-50Rx2

My photos: http://ThomasGray.smugmug.com
My daughter's blog: http://louise-dancey-photographe.blogspot.com/
Reply With Quote
  #2  
Old 14th November 2013
Ross the fiddler's Avatar
Ross the fiddler Ross the fiddler is offline
Full member
 
Join Date: Apr 2010
Location: Blue Mtns, NSW Australia
Posts: 13,788
Thanks: 2,024
Thanked 1,303 Times in 1,018 Posts
Likes: 5,288
Liked 1,944 Times in 1,080 Posts
Re: 14-35 hunting focus in low light

Are you using S-AF+MF or just S-AF, because that is what happens on my E30 with S-AF+MF.
__________________
Ross
I fiddle with violins (when I'm not fiddling with a camera).
Flickr: https://www.flickr.com/photos/ross-the-fiddler/
Cameras: OM-D E-M1 & Mk II, Olympus Stylus 1, OM-D E-M5.
Lenses: M.ZD12-40mm f2.8 PRO Lens, M.ZD40-150mm f2.8 PRO Lens with MC-14, M.ZD12-50, M.ZD60 Macro, M.ZD75-300 Mk II, MMF-3, ZD14-54 II, Sigma 150mm F2.8 APO Macro DG HSM.
Flashes: FL36R X2, FL50R, FL50.
Software: Capture One Pro 10 (& Olympus Viewer 3).
Reply With Quote
  #3  
Old 14th November 2013
srtgray srtgray is offline
Full member
 
Join Date: Oct 2009
Location: Switzerland
Posts: 84
Thanks: 0
Thanked 2 Times in 2 Posts
Likes: 0
Liked 7 Times in 6 Posts
Re: 14-35 hunting focus in low light

Quote:
Originally Posted by Ross the fiddler View Post
Are you using S-AF+M or just S-AF, because that is what happens on my E30 with S-AF+M.
I was using S-AF+M, but I thought I had changed to just S_AF and I still had the problem. I'll try and get into the same place and see if I can replicate the problem.
__________________
Thomas
--
E-5+HLD-4x2; E-1+SHLD-2; 8mm FE; 7-14; 11-22; 14-35; 35-100; 135-400; EC-14; EX-25; FL-50Rx2

My photos: http://ThomasGray.smugmug.com
My daughter's blog: http://louise-dancey-photographe.blogspot.com/
Reply With Quote
  #4  
Old 14th November 2013
katran's Avatar
katran katran is offline
Full member
 
Join Date: Oct 2012
Location: Romania
Posts: 151
Thanks: 0
Thanked 53 Times in 31 Posts
Likes: 0
Liked 71 Times in 25 Posts
Re: 14-35 hunting focus in low light

Check if the size of focus point is set to "SMALL".
If Yes, change it to "NORMAL" size.

Also test if IS has any influence if is ON/OFF.

-
Reply With Quote
  #5  
Old 14th November 2013
Ross the fiddler's Avatar
Ross the fiddler Ross the fiddler is offline
Full member
 
Join Date: Apr 2010
Location: Blue Mtns, NSW Australia
Posts: 13,788
Thanks: 2,024
Thanked 1,303 Times in 1,018 Posts
Likes: 5,288
Liked 1,944 Times in 1,080 Posts
Re: 14-35 hunting focus in low light

Quote:
Originally Posted by srtgray View Post
I was using S-AF+M, but I thought I had changed to just S_AF and I still had the problem. I'll try and get into the same place and see if I can replicate the problem.
When I first had my E30 I was questioning whether it was faulty too until I realised it was because of the +MF that created that behaviour. It was rather disconcerting in situations when it didn't lock focus & take the shot but kept on hunting when I had giving up & lowered the camera (& the E30 isn't as quiet as the E-5) & then people would look to see what I was taking a photo of.

Quote:
Originally Posted by katran View Post
Check if the size of focus point is set to "SMALL".
If Yes, change it to "NORMAL" size.

-
Yes, that is what I have found too which made me think it wasn't a particularly useful feature.
__________________
Ross
I fiddle with violins (when I'm not fiddling with a camera).
Flickr: https://www.flickr.com/photos/ross-the-fiddler/
Cameras: OM-D E-M1 & Mk II, Olympus Stylus 1, OM-D E-M5.
Lenses: M.ZD12-40mm f2.8 PRO Lens, M.ZD40-150mm f2.8 PRO Lens with MC-14, M.ZD12-50, M.ZD60 Macro, M.ZD75-300 Mk II, MMF-3, ZD14-54 II, Sigma 150mm F2.8 APO Macro DG HSM.
Flashes: FL36R X2, FL50R, FL50.
Software: Capture One Pro 10 (& Olympus Viewer 3).
Reply With Quote
  #6  
Old 14th November 2013
srtgray srtgray is offline
Full member
 
Join Date: Oct 2009
Location: Switzerland
Posts: 84
Thanks: 0
Thanked 2 Times in 2 Posts
Likes: 0
Liked 7 Times in 6 Posts
Re: 14-35 hunting focus in low light

Quote:
Originally Posted by Ross the fiddler View Post
When I first had my E30 I was questioning whether it was faulty too until I realised it was because of the +MF that created that behaviour. It was rather disconcerting in situations when it didn't lock focus & take the shot but kept on hunting when I had giving up & lowered the camera (& the E30 isn't as quiet as the E-5) & then people would look to see what I was taking a photo of.
Interesting. I used to have the E-3 set to AF+M all the time without problems.

Quote:
Yes, that is what I have found too which made me think it wasn't a particularly useful feature.
I did have it set to small. I'll change it back and see what difference it makes. Again, it was something I did with the E-3 because it was better, and I just assumed the E-5 would be the same.
__________________
Thomas
--
E-5+HLD-4x2; E-1+SHLD-2; 8mm FE; 7-14; 11-22; 14-35; 35-100; 135-400; EC-14; EX-25; FL-50Rx2

My photos: http://ThomasGray.smugmug.com
My daughter's blog: http://louise-dancey-photographe.blogspot.com/
Reply With Quote
  #7  
Old 14th November 2013
Ross the fiddler's Avatar
Ross the fiddler Ross the fiddler is offline
Full member
 
Join Date: Apr 2010
Location: Blue Mtns, NSW Australia
Posts: 13,788
Thanks: 2,024
Thanked 1,303 Times in 1,018 Posts
Likes: 5,288
Liked 1,944 Times in 1,080 Posts
Re: 14-35 hunting focus in low light

Quote:
Originally Posted by srtgray View Post
Interesting. I used to have the E-3 set to AF+M all the time without problems.
I used S-AF+MF successfully on my E520 too & that was why I questioned it at the time when the E30 didn't behave the same.

Quote:
Originally Posted by srtgray View Post
I did have it set to small. I'll change it back and see what difference it makes. Again, it was something I did with the E-3 because it was better, and I just assumed the E-5 would be the same.
With the twin cross hairs in use for Normal it has to be twice as good at getting a focus lock on something than the single cross hairs for 'small' AF-Sensitivity.
__________________
Ross
I fiddle with violins (when I'm not fiddling with a camera).
Flickr: https://www.flickr.com/photos/ross-the-fiddler/
Cameras: OM-D E-M1 & Mk II, Olympus Stylus 1, OM-D E-M5.
Lenses: M.ZD12-40mm f2.8 PRO Lens, M.ZD40-150mm f2.8 PRO Lens with MC-14, M.ZD12-50, M.ZD60 Macro, M.ZD75-300 Mk II, MMF-3, ZD14-54 II, Sigma 150mm F2.8 APO Macro DG HSM.
Flashes: FL36R X2, FL50R, FL50.
Software: Capture One Pro 10 (& Olympus Viewer 3).
Reply With Quote
  #8  
Old 14th November 2013
Graham_of_Rainham's Avatar
Graham_of_Rainham Graham_of_Rainham is offline
Administrator
 
Join Date: Nov 2007
Location: Rainham
Posts: 8,052
Thanks: 635
Thanked 931 Times in 720 Posts
Likes: 2,241
Liked 1,569 Times in 901 Posts
Re: 14-35 hunting focus in low light

I use the 14-35 for the majority of my work and a lot of that is done with manual focus. Low light has always been a problem when trying to focus, which is why I use the focus scale and a tape measure for close in subjects and a good sense of distance for objects further away.

Using hyperfocal distance techniques can help as well to get both sharp images and fast shutter actuation. I've also got a laser with a cross generator filter that I can use in virtual blackness, to use as a focus aid.

Obviously all these techniques work well in some situations and are useless for others. But half the fun of photography is working out how to get the pictures despite all the things that are working against us.

Try and practice some "Old School" methods and you will soon appreciate the images are more about your skills that that of the "iAuto" programmer...
__________________
Graham

We often repeat the mistakes we most enjoy...
Reply With Quote
  #9  
Old 14th November 2013
Ross the fiddler's Avatar
Ross the fiddler Ross the fiddler is offline
Full member
 
Join Date: Apr 2010
Location: Blue Mtns, NSW Australia
Posts: 13,788
Thanks: 2,024
Thanked 1,303 Times in 1,018 Posts
Likes: 5,288
Liked 1,944 Times in 1,080 Posts
Re: 14-35 hunting focus in low light

Quote:
Originally Posted by srtgray View Post
I was using S-AF+M, but I thought I had changed to just S_AF and I still had the problem. I'll try and get into the same place and see if I can replicate the problem.
If it's S-AF & it struggles to find focus it should stop after releasing the shutter button but not if it is S-AF+MF, which is quite annoying when it keeps on hunting regardless.
__________________
Ross
I fiddle with violins (when I'm not fiddling with a camera).
Flickr: https://www.flickr.com/photos/ross-the-fiddler/
Cameras: OM-D E-M1 & Mk II, Olympus Stylus 1, OM-D E-M5.
Lenses: M.ZD12-40mm f2.8 PRO Lens, M.ZD40-150mm f2.8 PRO Lens with MC-14, M.ZD12-50, M.ZD60 Macro, M.ZD75-300 Mk II, MMF-3, ZD14-54 II, Sigma 150mm F2.8 APO Macro DG HSM.
Flashes: FL36R X2, FL50R, FL50.
Software: Capture One Pro 10 (& Olympus Viewer 3).
Reply With Quote
  #10  
Old 14th November 2013
Ian's Avatar
Ian Ian is offline
Administrator
 
Join Date: Jul 2007
Location: Hemel Hempstead, Hertfordshire, UK
Posts: 11,412
Thanks: 415
Thanked 2,445 Times in 1,233 Posts
Likes: 829
Liked 1,653 Times in 740 Posts
Re: 14-35 hunting focus in low light

You may want to experiment with the release priority setting in the menus.

Ian
__________________
Founder and editor of:
Olympus UK E-System User Group (http://e-group.uk.net)
Four Thirds User (http://fourthirds-user.com)
Digital Photography Now (http://dpnow.com)
Olympus camera, lens, and accessory hire (http://e-group.uk.net/hire)

Twitter: www.twitter.com/ian_burley
Flickr: www.flickr.com/photos/dpnow/
Pinterest: www.pinterest.com/ianburley/
NEW: My personal BLOG ianburley.com
Reply With Quote
  #11  
Old 14th November 2013
srtgray srtgray is offline
Full member
 
Join Date: Oct 2009
Location: Switzerland
Posts: 84
Thanks: 0
Thanked 2 Times in 2 Posts
Likes: 0
Liked 7 Times in 6 Posts
Re: 14-35 hunting focus in low light

Quote:
Originally Posted by Ian View Post
You may want to experiment with the release priority setting in the menus.

Ian
What do you recommend? I don't think I changed it from the default (which seems to be off for S-AF and on for C-AF)
__________________
Thomas
--
E-5+HLD-4x2; E-1+SHLD-2; 8mm FE; 7-14; 11-22; 14-35; 35-100; 135-400; EC-14; EX-25; FL-50Rx2

My photos: http://ThomasGray.smugmug.com
My daughter's blog: http://louise-dancey-photographe.blogspot.com/
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Dragon Hunting Chevvyf1 Foto Fair 4 9th September 2012 05:31 PM
Focus "Hunting" in Snow scene mode Graham_of_Rainham Micro Four Thirds 0 5th February 2012 11:41 AM
Bug Hunting timmypreston Foto Fair 7 16th May 2011 09:02 PM
Using an LED Ring Light as a Focus Aid Ross the fiddler Flash 2 18th November 2010 12:00 PM
Truffle Hunting Adagio Foto Fair 1 30th August 2010 05:22 PM


All times are GMT. The time now is 09:58 AM.


The Write Technology Ltd, 2007-2019, All rights reservedAd Management plugin by RedTyger