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 > General photography discussion

General photography discussion Please look for a specific board to start your thread but if you can't find an appropriate one, post it here.

Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 28th April 2019
RobEW RobEW is offline
Full member
Join Date: Feb 2017
Location: Nottingham
Posts: 2,046
Thanks: 165
Thanked 74 Times in 68 Posts
Likes: 1,196
Liked 194 Times in 132 Posts
S-AF(MF) - a slight downside

When I started using OMD a couple of years back, I quickly decided S-AF (MF) seemed to be better than S-AF for normal use in that it gave me the extra option to make fine tuning using the focus ring while the shutter button was half pressed. It seemed a no brainer to allow myself this extra possibility, even though rarely used, and I was a bit mystified why anyone wold want S-AF without the (MF) option. So I've been using that ever since as my starting point at power on and my most used mode, with occasional forays into MF.

However ... after a spot of experimentation today I've just realised a slight downside.

The Rls priority S option in the menu system has a default setting of OFF, and this means it won't take photos in S-AF unless you're in focus. (You can set it to ON if you like your photos fuzzy).

What I didn't realise was that this protection from fuzziness is only for strictly S-AF, and if you're in S-AF (MF) mode you don't get that protection - even if you haven't sought to override the auto-focusing by touching the ring on the lens.

I think I shall abandon S-AF (MF), and instead start at S-AF, and sometimes switch to MF (using Fn2 which I have set up for that purpose) and then twist the focus ring. (I also have the option of using the AEL/AFL button to grab a quick auto-focus while in MF mode, as I have AEL/AFL defined as S1/C2/M3.)

This will leave me in greater clarity. If I'm in S-AF then the camera will force me to be in focus, by refusing to take a shot if it's out of focus; if I'm in MF mode then it is my responsibility to get the focus right (with the help of peaking and magnification).

S-AF(MF) isn't quite the no-brainer I thought it was.
Reply With Quote
The Following Users Liked This Post:
AMc (29th April 2019), MJ224 (29th April 2019), pault (29th April 2019)

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
Out and about in a very slight thaw.... Rocknroll59 Foto Fair 2 22nd January 2013 11:13 PM
A Slight Breeze Ross the fiddler Foto Fair 10 24th August 2012 04:28 AM
Downside Up Downunder pandora Foto Fair 4 20th August 2011 11:28 AM
E-5 Slight Noise adam m lucas Olympus E-5 1 3rd May 2011 04:18 PM
Any downside to Silkypix? Dick Bowman Software 5 3rd August 2008 09:09 AM

All times are GMT. The time now is 08:54 AM.

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