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Old Mar 20, 2011, 10:35 AM   #1
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Default X100 configuration - part 2 - focus

New blog post on this with pics.

Content repeated below.


Right so this is a difficult one. Maybe the most difficult set of choices to make.

First of all. We're all using the OVF right? In standard display mode the Autofocus distance indicator along the bottom of the VF overlay is shown with a white bar to show DOF. This is absolutely brilliant. If you manage to accidentally turn it off, then go back in an turn it on again.

Focus Mode is selected via the focus selector button on the side of the camera.

I haven't even tried AF-C. (Well I did turn it on by accident once, but it eats the battery apparently.) It might work. Frankly I'd be amazed. I'm pretty much of the opinion that anything short of the very top end DSLRs are a bit rubbish. Canon 1D series - brilliant! Nikon D3 series - awesome! Canon 7D or Nikon D300/D700 - well maybe. Anything else - forget it.

So what's left? AF-S single focus or MF manual focus. I've played around with them both a fair bit now. AF-S is okay. Plain old MF using the ring is good where you have nice light and can stop down a bit for zone focussing. The throw on the MF ring appears to be tuned for Macro or something. You have to do a LOT of rotation at closer distances. This makes it a lot slower at close distances than using a RF camera. When you do have things set for a good distance however shooting is instant and completely quiet. This is awesome for discreet event or crowd shooting. Note that you can set the ring to turn either way to cater for both the Canon and Nikon DSLR users.

And then it came to my attention (I'm a bit slow) that pressing the AFL/AEL button on the back of the camera with your thumb when in MF mode will actually kick in the AF. You can then fine tune (or not) with the focus ring. I haven't yet played around with the Setup menu -> FOCUS CHECK option. But I do find it difficult to hit the OK button when I'm looking at the back of the camera, never mind with my eye to the viewfinder, so I expect it to be of limited utility, and unlikely to be usable in a time-limited situation. The only irritation is that it doesn't light up the focus area with green to give focus confirmation, so you have to keep an eye on the distance meter.

Focus Frame selection.

Okay first off: Multi-mode ... what's that about? Just focus on the highest contrast thing you can find in the frame. The mind boggles.

Then secondly Area-mode + selecting an off-centre focus area - meh, this just seems completely pointless. This is not something I will ever be able to do in the field. Lots of button pressing and scrolling and fiddling, meantime you've missed half-a-dozen moments, just because just because you're worried about hypercritical focussing with a 23mm lens? I don't think so. Maybe for Macro. So no, it's centre-focus then recompose.

Final recommendation?

1. OVF.
2. Make sure your distance scale and focus distance is showing.
3. MF mode.
4. Use AFL/AEL button to focus and recompose. Look for high-contrast objects at the right distances.
5. Don't subsequently refocus unless your distance to subject has changed significantly.

Now I'm not saying it's easy. And it's not at all on par with even a semi-pro DSLR autofocus capability (like my 5DMkII), in fact it's probably not even close to most entry-level DSLRs. However, for taking pictures of people at moderate distances it sure is a lot faster than I can manage with my Zeiss Ikon RF. I know some people can focus demon-fast with their Leicas. Good for them! If I can get a picture focussed with my RF in less than 3 seconds or so I'm jumping up and down with happiness inside. After only a few hours really using this camera I'm getting pretty good focus results at a reasonable speed I think. Sports-shooting DSLR users are going to think it's rubbish, but RF users might like it rather a lot. In particular RF aficionados who can fine-tune their focus as the subject changes distance will get very good mileage out of this.

And when you have a subject that's not moving much it's quite a revelation to be able to shoot at 5fps completely silently! If the subject isn't looking at you they won't. Try that with a DSLR. People feel like they are being machine-gunned and ALWAYS turn to look at you. So when you're working close to people this AF system might have some significant real-world advantages over DSLR AF, where you sometimes just get their backs as they run away from you, or hostile glances, anyway you get the point.

I'm definitely getting more comfortable with the X100 now.

Also this morning I had my X100 round my neck and my 5D2 with telephoto slung off my shoulder. No trouble at all switching between the two.
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Old Mar 20, 2011, 12:43 PM   #2
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thanks for these write-ups. great information for those planning/dreaming to purchase one.

i am getting that the autofocus isn't up to par with the better dslrs, would you put it in the same league as the mirrorless cams (if you have used mirrorless enough to comment)
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Old Mar 20, 2011, 3:14 PM   #3
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I'm afraid I haven't used any others enough to say with any confidence.

From the little bit I have seen them, they seem to be pretty close. A friend has a GF1, a colleague has an EP1 and I have spent a few minutes in the shops playing with the NEX and Samsung. They all seem fairly similar to me, and all roughly the same as the X100.
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Old Mar 20, 2011, 10:10 PM   #4
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I'm glad to hear that someone here has the x100. It's a very interesting hybrid vf camera. i just read that the focus ring is free-turning. i.e.: you cannot preset the focus distance without looking thru the viewfinder. if so, i'm losing my excitement quickly.

however, i'd like to know if i hold the camera down, say at waist level, and turn the focus ring, will the distance selected show in the lcd? clearly? thanks and i'll be following this thread or your blog for more real-user impressions.
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Old Mar 21, 2011, 2:40 AM   #5
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Yes, it's a fly-by-wire type affair, with no distance markings on the barrel.

If you use the LCD then it does show when you change the distance, but it's not articulated so I don't think you can really use it at waist level in the way you're thinking about.
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Old Mar 21, 2011, 5:35 AM   #6
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Quote:
Originally Posted by peripatetic View Post
... but it's not articulated ...
thanks. for me, that's a show-stopper.
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Old Jan 23, 2014, 3:09 PM   #7
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at 23mm f8 the hyperfocal is about 15' - everything 7-inf will be ok

I have the x10 - greeeaaaaaat camera
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