DPR Says If Coming From E-3/5 You'll Be Dissapointed In Focusing

Started 10 months ago | Discussions thread
Ian Burley
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Re: DPR Says If Coming From E-3/5 You'll Be Dissapointed In Focusing
In reply to Regan M, 10 months ago

Regan M wrote:

Correct. DPReview has updated their preview with this:

"UPDATE:

Having gone back and spent some more time with an Olympus E-5, I'm inclined to be more positive about the E-M1's behaviour with Four Thirds lenses - not because it's better than I originally stated, but because the E-5 isn't as good as I'd previously thought. Consequently, E-5 users expectations are probably lower than I originally believed. It's also easy to under-appreciate the camera's performance with Four Thirds lenses because it's so fast when using Micro Four Thirds lenses.

However, side-by-side use suggests that, while the E-M1 focuses at a similar speed to the E-5 in good light, it is more prone to occasionally slowing down and juddering the lens into focus than the E-5. This behaviour is particularly apparent when switching focus from distant to near objects or when shooting in moderate-to-good lighting levels (inside a well-lit office with large windows)."

And the info from EVERY other source indicates as good or better than the E-5. This from Four-Thirds user.

" Under most circumstances the E-M1 focuses Four Thirds lenses normally and perhaps even faster than an Olympus E-5. We have been using lenses like the Zuiko Digital 300mm f/2.8, 90-250mm f/2.8, 150mm f/2.0 and the 50-200 f/2.8-3.5 SWD photographing birds in flight (BIF) perhaps the ultimate challenge for an autofocus system, and as you will discover in our sample image gallery on page 2 of this article we have been able to get some excellent results. We have also been enjoying the use of Micro Four Thirds lenses chasing birds as well thanks to the E-M1's PDAF support in continuous focus (C-AF). The E-M1 is at least as good as an E-5 and we honestly feel that overall it is actually better thanks to the 26 additional focus points and improved predictive focus and subject tracking algorithms. The E-M1 is not top in class but it is a very respectable performer in action photography conditions, well-aided by up to 6.5 frames per second continuous shooting while continuously focusing.

Sorry, my experience is that the E-M1 drives the AF faster than an E-5, even as the light gets lower. As the light fades, the E-5 starts to chug while the E-M1 remains relatively fast and decisive. However, the E-M1 gives up focusing at a higher brightness level than the E-5, although by then it's really pretty dark. Having really bright f/2.0 lenses is a definite plus. But CDAF and MFT lenses is better also.

Ian

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Founder and Editor of Four Thirds User www.fourthirds-user.com
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