New Olympus 17mm 1.8

Started 8 months ago | Discussions thread
Anders W
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Re: AF test 17mm vs 20mm
In reply to Pixnat2, 8 months ago

Pixnat2 wrote:

Anders W wrote:

Pixnat2 wrote:

Anders W wrote:

Pixnat2 wrote:

Anders W wrote:

Mark Chan wrote:

we'll, I had the 20mm since launch and that lens never could focus fast. It was fine when all the initial m43 cameras had limited AF speed like those of sony and Fuji at the moment. Since the advent of olys FAST AF system, it's weakness was exposed. even the kit lenses focus faster. I never did get well focused shots of my kids running around with it. It's always been known to have an older motorized design.

after getting the 17mm F1.8 with my EP-5, I now get instant AF aka the 12-35mm f2.8 or even the 45mm from OLY. Sold of

Beyond that the lens FOV, bokeh etc are personal tastes. the one factual difference I see is the much faster AF. And the build. Oh and the lack of any noise during focusing.

YMMV

I have tested the AF speed of the 20/1.7 against that of the 12/2, the 45/1.8, and the 14-45/3.5-5.6 under strictly controlled conditions on my E-M5. Result: The speed is for all practical purposes the same. See here for details.

http://www.dpreview.com/forums/post/50877416

Have you performed any similarly well-controlled test?

Here's one test :

http://www.youtube.com/watch?v=sLbr1jP9VmU

Quote frome the Phoblographer (author of the test) :

"There is no draw here, the Olympus 17mm simply crushes the Panasonic 20mm when it comes to autofocus speed."

Not the words I would have used, but the 17 is definitely faster.

Which of the two tests do you consider better and on what grounds? Please be specific.

The test which ACTUALLY compare the 17mm and the 20mm. There's only one, so...

Are you saying that the 17 is noticeably faster than the 12 or the 45?

Quote from the Phoblographer :

"In terms of autofocus, I think this (the 17mm) may be the fastest lens in the M43 lineup."

Personaly, I wouldn't speak about lenses I don't own

OK. So we can settle for the 20 being as fast as the 12 and the 45 and Phoblographer's untested claim.

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Panasonic Lumix DMC-G1 Olympus OM-D E-M5 Olympus E-M1 Panasonic Lumix G Vario 14-45mm F3.5-5.6 ASPH OIS Panasonic Lumix G Vario 7-14mm F4 ASPH +21 more
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