Quick-Shift focusing for lenses that lack it.

[synjones]

Almost always be misaligned with the lens focus drive socket after twisting the focus ring manually and releasing the button. So when auto focus is next activated, there will be that unpleasant click and delay.
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[ftpaddict]

Originally Posted by synjones

Almost always be misaligned with the lens focus drive socket after twisting the focus ring manually and releasing the button. So when auto focus is next activated, there will be that unpleasant click and delay.

First of all, I'm surprised you haven't gotten banned yet.

Second, not true.

I've been using this method for ages now and it has worked very well.

[stgmgr]

Sorry gang...........I'm confused..............
Are you saying that I can let my camera Auto-focus, then take my finger off the shutter release, and manually turn the focus ring???
If so, WHY??

[LaRee]

Originally Posted by stgmgr

Sorry gang...........I'm confused..............
Are you saying that I can let my camera Auto-focus, then take my finger off the shutter release, and manually turn the focus ring???
If so, WHY??

Use your other hand. You'll find it quick to fine tune the focus.

[StarDust]

What a nifty little trick. I've been having troubles with my 70-300 lacking this feature. I'll have to remember to try it when the appropriate moment comes along.

[kerrowdown]

Manual lenses don't have these sort of issues.

[drewdlephone]

I tried this out, in theory, with my 18-55, even though it does have the the quick-focus system, just to see how the ergonomics work... and while it's possible, I don't see how it could possibly be easier to apply pressure to a spring loaded button on the front face of the camera, compared to flicking a switch on the side. Or at least, it doesn't seem all that easy to me, but I'm not very coordinated.

[heliphoto]

Originally Posted by drewdlephone

I tried this out, in theory, with my 18-55, even though it does have the the quick-focus system, just to see how the ergonomics work... and while it's possible, I don't see how it could possibly be easier to apply pressure to a spring loaded button on the front face of the camera, compared to flicking a switch on the side. Or at least, it doesn't seem all that easy to me, but I'm not very coordinated.

It's funny, I haven't used this all that much since I read about it and started this thread - I've used it some though. Perhaps it has to do with the length of ones fingers, and also the ergonomics may vary on the different camera bodies enough to change it, but I can easily press the button with the "ring finger" on my right hand, while still actuating the shutter release with my index finger. With a short lens like the 18-55 or similar, you're right about just moving your left hand to the switch, but when supporting something longer (Tamron 70-200/2.8 comes to mind), moving your left hand away from the lens body can mess up your composition etc. while the lens isn't supported, and it can be a long way to move your hand as well.

[Eruditass]

I thought I'd give this a bump given all the new K-x people and their DA L lenses. Maybe I will try to pick up a 55-300 DA L since my 70-300 is showing its limits

This works surprisingly well - easier than moving the left hand so you can switch the AF/MF switch. Lens doesn't rotate at all and there is no fear of dropping the lens (for me), all you need to do is move your ring finger of your right hand which is pretty much in that area anyway.

And you don't have to switch it back.