Using the 50-200 SWD on both E-5 and E-M1

Started Nov 2, 2013 | Discussions thread
OP boggis the cat Veteran Member • Posts: 6,329
Re: Using the 50-200 SWD on both E-5 and E-M1

Geo Wharton wrote:

Big Ga wrote:

boggis the cat wrote:

Big Ga wrote:

boggis the cat wrote:

This is a thread about AF performance of this lens, since there have been conflicting reports -- including from DPR, which I now view as nonsense.

So what exactly about the DPR report do you consider nonsense ?

Their opinion on AF performance of standard FT lenses.

That's a very telling statement. Because personally, I can totally understand what the DPR review was getting at. Its not a subject that most on 1022 want to talk about, but the cold hard reality is that AF on 4/3 cameras has ALWAYS been a (very) weak point of the system compared to the big two.

If you use 4/3 cameras on a regular basis, most people will learn techniques so as to try and minimise or work around the negatives, however if you also then use other cameras for any period of time, most of them have AF systems that don't have the Oly quirks/failings, its then that you notice how bad the Oly AF is when you switch back.

I suspect you don't have a wide enough frame of reference to actually know how a decent AF system should operate. if you did, you'd almost certainly agree with the DPR report.

I very seldom miss focus with the E-5. Perhaps the two I have just happen to be the most perfect two E-5 bodies in the world. I think it takes a steady hand but CAF works extremely well. I get better results from CAF than with SAF on moving objects, including birds in flight, running dogs, speeding motorcycles, etc. Olympus does not have "tracking" AF. It has Predictive CAF. When I lock on with CAF the Predictive AF keeps the focus right.

I haven't had much luck with C-AF on the E-5.  I can understand why it would work on, say, a bird against the sky -- but it can't track someone running through any kind of foliage / through trees etc.

Maybe it simply can't achieve what I'd want out of it.

I agree with Boggis that DPR did a crap job of reviewing the E-5.

My point was about the DPR reviewer's rather weird opinion on AF capability of standard FT lenses on the E-M1.  "AF capability is not very good, and not up to the E-5's standard." "Oh.  OK, it is as good as the E-5, but the E-5 is lousy.  I'd forgotten that."  (Nice low bar for a 'review' there, DPR.)

They waited more than three months to get around to slapping together a report. They left the camera on default settings and did not get out of the camera what it was capable of. I doubt they even tried to.

The E-5 review did leave that impression, didn't it?

"We really can't be bothered, but OK, whatever.  Meh.  It's OK for a FourThirds camera."

As I said, opinion, but if you can't keep this focused then you're not doing it right.

And yes, I have owned and rented other makes of cameras.

I haven't found anything that looked like it would be better for my main usage, so stuck with Olympus.  The E-M5 was fairly close to what I need, but no 50-200 usability made it merely a secondary body (with the 12-50 for general 50-200 fill-in shots, or the 45 prime for low-light indoors).  The E-M1 seems pretty convincing so far.  Possibly not better than the E-5 in AF of standard FT lenses, but seems to be pretty much on par.

And it looks as though the C-AF implementation works fairly well most of the time -- I got one dud focus shot that I thought would be OK, and one that I knew I'd fluffed; and also one S-AF shot where I failed to notice that I'd not re-focused (nice sharp shot of the stuff that the AF had locked onto, though).  This came out to thirty-seven 'keepers' out of forty shots: two user error, one C-AF failing to track a person running about in a fairly clear area (although I have no idea whether I chose the right C-AF mode).

If you're wondering about a strangely low shot count, I'm still in 'old school' film shooting mode.  (I know, I need to relearn for digital, blah blah... Yeah, you're right...)  OTOH: always bemusing to see people 'machine gunning' static subjects at maximum burst rate.  I have never used the burst mode on a camera -- why would you waste so much film! 

 boggis the cat's gear list:boggis the cat's gear list
Olympus E-5 Olympus E-M1 Olympus Zuiko Digital ED 12-60mm 1:2.8-4.0 SWD Olympus Zuiko Digital ED 50-200mm 1:2.8-3.5 SWD Olympus 12-40mm F2.8 +7 more
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