Swing, Swing, Swing

I took the 50D with me to the park the last couple of trips, hoping to catch some interesting action:

Swing, Swing, Swing, originally uploaded by adr!@n.

I also took my 24-70 with me. I don't own the 17-55 f/2.8 IS, which I've recommended to other people, and is by far one of the best general purpose lenses on an APS-C sensor. I've never even used one. The primary reason is simply because aside from the EF-S 10-22, I wanted all my lenses to be full frame compatible.

The EF 17-40 f/4.0L is close in focal length range, but just doesn't have the wide 2.8 aperture or image stabilization; though I find I typically favour the telephoto range than the wide range anyways, so the 50D and 24-70 combo work out well for me.

I'd forgotten that I'd spent some time micro focus adjusting the 24-70 on my 50D. It had a setting of +8. Some pictures came out decent, but others seemed soft, like this one:

It's still a usable shot, but viewed large, Ella isn't exactly sharp or in focus. At 1/100th @ 62mm, motion blur shouldn't be a factor.

So tonight, I decided to set the adjustment back to 0 and take a few shots to compare. The top shot of Ella in motion in a swing is definitely better, so I'll have to figure out how I managed to see +8 as being the best setting weeks ago. She's still not perfectly sharp, but that's because AF Servo couldn't quite keep up with her.

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