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Olympus OM-D E-M1 The first Micro Four Thirds camera that offers phase detect focusing so you can use Four Thirds DSLR lenses normally as well a Micro Four Thirds lenses. |
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#91
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Re: Is C-AF actually improved with v3.0?
Its early days yet Ron and I haven't had the chance to try capturing birds against a complex background yet (don't expect much luck using all points though )
What I have found is that if it has got a lock before a gull passes in front of or behind foliage its holds lock very well (CAF lock set to Normal). As I say, roll on some decent light and subjects so I can give it a real work out |
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Olybirder (12th August 2015) |
#92
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Re: Is C-AF actually improved with v3.0?
An interesting moment this evening when I lifted the camera to my eye and pressed focus in portrait mode, CAF at 9fps and the system hunted like a md thing, not once but on successive attempts - panic!
then I checked my settings and realised I had left it in large single point focus, switched it to all points and bingo, back to its usual rapid lock and capture ![]() The Martins still aren't coming close yet, this is a 100% crop at around 110 pixels on the longest side ![]() |
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Olybirder (12th August 2015) |
#93
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Re: Is C-AF actually improved with v3.0?
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Pretty good Martin shots! David
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PBase Galleries:-http://www.pbase.com/davidmorisonimages |
#94
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Re: Is C-AF actually improved with v3.0?
thanks for the compliment David, but I would suggest that any photography is a bit of a minefield to start with, whether it be trying to shoot BIF with DSLR, macro with a dedicated macro lens etc.
I don't think that m4/3rds for birding is inherently "difficult" but does require technique to be learnt. I have found it more difficult to teach people moving from DSLR to m4/3rds than I have people who have never shot a DSLR in the first place to use an m4/3rds for shooting BIF or sport because the "similarities" between them confuse as, in my opinion, totally different camera handling techniques are needed to get similar results |
#95
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Re: Is C-AF actually improved with v3.0?
I picked mine up this weekend. On the way back I had a stopover in Milton Keynes so what better opportunity to find out the tracking problem than a train coming head on at 125mph. No problem there. I was using Box 9 focus points, 6fps high speed sequential, C-AF, and the 12-40mm. Now at first it DID lock on to the weeds on the side of the tracks, and we know why. So I though a big old train is not a small bird in flight. I have managed to catch some, much better than with the M-10, but, of course, there were not many out flying while I was out wanting to shoot them. I did manage to get this. I thought that was pretty good, just not sharp because I moved, it looked like he was going to fly right into me.
![]() I went out later and there were some small birds flying, and I did notice it lock then hunt, then lock.... I was using the 40-150mm......F4-F5.6. Earlier while nothing was flying I had on the 50-200mm lens, and a little bug smasher flew by. The lens struggled to lock, turned to portrait orientation, instant lock. It's a very nice camera, leaps ahead of the M-10, I shouldn't be surprised but I am. |
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brian1208 (17th August 2015) |
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brian1208 (17th August 2015) |
#96
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Re: Is C-AF actually improved with v3.0?
its not just me finding this works then
![]() nicely done |
#97
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Re: Is C-AF actually improved with v3.0?
Thanks
That Goose was with the 75-300mm held landscape orientation but the plane, with the 50-200mm, it hunted and hunted, then I turned the camera 90 degrees and BAM lock and track. I haven't had the bird availability to check out the other lenses. But if it works for you....I can't wait to see. |
#98
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Re: Is C-AF actually improved with v3.0?
Please could those of you who are achieving good results for BIF & aviation photography when using SeqH + C-AF recommend the optimum settings for the following:
CogC Release
Many thanks
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Chris Last edited by Gwyver; 20th August 2015 at 04:36 PM. Reason: clarification of the question |
#99
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Re: Is C-AF actually improved with v3.0?
I can only comment on what works for me (I believe others have different settings?)
- Release setting so it will release the shutter without confirmation of focus (I can never remember whether that is "Off" or "On" and my EM-1 is packed away for an early start tomorrow) - IS auto - IS set to work between sequential shots - body in portrait mode - set to square format as I find this helps my mind cope with framing a moving object with the camera in portrait orientation - all squares active (or for larger subjects, 9 box active) focus points - 9 fps |
#100
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Re: Is C-AF actually improved with v3.0?
Well, I am totally convinced that CAF works beautifully at 9fps, so long as the camera body is in portrait mode.
I spent yesterday at or local Bournemouth Air Festival in pretty dire light conditions with sea haze, shooting into the sun, only relieved when the cloud finally rolled in. I tried SAF+ M and CAF in both portrait and landscape camera positions and the one that most consistently got me the sequence of in focus / sharp shots was CAF in portrait mode, up to and including the Typhoon barrelling toward me at 600+ mph. What surprised me was how often SAF + M hesitated in gaining focus lock under these conditions, it seemed to grab first lock then shuttle back and forth a few times before confirming lock. With CAF in portrait mode there appeared to be no similar effect, with more or less instant lock on and hold (focus lock release set to Normal ) I'm only part way through looking at all the many pics but most CAF approach sequences seem consistent (this does however mean that if it started firing before lock was acquired the whole sequence is OOF ![]() My only problem with these fast jets was keeping the darned things in the right part of frame when shooting in portrait mode, easy when coming toward me but really tough when panning at around 600mph |
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pvasc (22nd August 2015) |
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pvasc (22nd August 2015) |
#101
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Re: Is C-AF actually improved with v3.0?
Why does it work better in portrait than landscape mode ? It unnatural I think
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D500 / 35 f1.8 / 50 f1.8 /16-80 / 70-300 e-m10 mk2 + P12-32 and PL 25 f1.4 |
#102
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Re: Is C-AF actually improved with v3.0?
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#103
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Re: Is C-AF actually improved with v3.0?
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What ever the reason the effect is very clear Quote:
I've had a quick look in the manual and the only reference I can see at first glance is that it may be difficult to auto focus on subjects that contain only horizontal lines (so logic would suggest that turning the camera from landscape to portrait mode will resolve that issue by converting the horizontal lines into vertical lines ) |
#104
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Re: Is C-AF actually improved with v3.0?
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__________________
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). |
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brian1208 (22nd August 2015) |
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brian1208 (22nd August 2015) |
#105
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Re: Is C-AF actually improved with v3.0?
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It seems as if, from the user's perspective, the design decision regarding orientation of the PDAF sensors was flawed - though this may be constrained by the direction of the cell wiring on the sensor chip. A PD sensor re-orientation would benefit not only C-AF where horizontal motion seems to be most common, but also many landscapes which only 'need' S-AF have more horizontal than vertical tonal transitions. Maybe Olympus will rectify this next time - or perhaps it was a deliberate marketing choice to encourage 43 users to transition to m43?
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Chris |
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Thread | Thread Starter | Forum | Replies | Last Post |
C-AF improved since Version 2 Firmware? | Bengeo | Olympus OM-D E-M1 | 48 | 1st December 2014 07:40 PM |
Where is the improved E-P1 noise performance? | Ian | Olympus Pen E-P1 | 4 | 3rd October 2009 03:22 PM |
Improved repair service - a different kind of wish for Watanabe-san | Gwyver | Announcements | 5 | 5th April 2009 06:33 PM |