Yes, manual focus all the way with an OM Zuiko 50/1.4. Yes, it's easy
to focus an OM Zuiko at f/16 in sun or subdued indoor day light. But
f/16 doesn't work in a dark hallway. As I said even the camera's
autofocus had difficulty there even shooting at f/6.3.
No, there is no "focus confirm" as on your DSLR adapter. The E-M1
employs magnification and focus peaking for MF focus assistance but,
AFAIK, it only works with AF lenses when in MF mode since turning it on
is controlled by the MF ring on the AF lens. You can, however, turn on
the 2X digital converter for a 2X display. Just remember to turn it off
again before you take the shot or you'll get the 2X shot.
If anyone knows how to turn on magnification or focus peaking with an MF
lens I'd like to hear about it.
When reviewing images already taken the rear dial can increase
magnification up to 14X. It would be nice to have that feature work
while taking images.
Chuck Norcutt
On 7/10/2016 5:45 PM, DZDub wrote:
On Sun, Jul 10, 2016 at 11:39 AM, Chuck Norcutt <
chucknorcutt@xxxxxxxxxxxxxxxx> wrote:
Yes, you can focus at f/16. I just tried it outdoors in bright sun and
various places in the subdued light in the house. Then I pointed it down
the dark hallway going out to the garage. In the dark hallway I could see
objects at f/16 but not well enough to focus until I opened to f/8 although
f/5.6 made focusing easier. Note that the camera was set at ISO 200 and I
didn't attempt to change that.
To give you an idea of the brightness ranges involved I fitted the m.Zuiko
12-50 so I'd have 50mm available to go with the Zuiko 50/1.4 I used for the
MF lens.
The outdoors shot was 1/320 at f/8 with -0.7 exp. comp. The indoors
subdued light shot was 2" at f/5.6 with -0.7 exp. comp. The shot down the
dark hallway was 8" at f/6.3 with no exp. comp. f/6.3 is wide open at 50mm
on the m.Zuiko 12-50. The camera had great difficulty focusing on the edge
of a throw rug near the exit door. It took it several seconds to lock in
and easily lost it. At f/6.3 on the 50/1.4 I think I could have beaten the
camera and could have gotten an easier and faster shot by opening to f/1.4.
Keep those old, fast Zuikos. They are still quite usable on an OM-D body.
I would be less concerned about how easily you can focus a Zuiko at f11 or
f16 than whether it could be done at all. I am assuming manual focus all
the way. Is there some sort of focus confirm with the adapter you use?
(Not super critical for me, but nice to have.)
Thanks,
Joel W.
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