C+C please: 911 Turbo, is it in focus?

[Ted Nugent]

Today was the first chance I've had to play with my newly acquired 50mm.
Most of the photos I took today were horribly out of focus, mainly cause I was shooting at a 1.8 and didn't realize it.
To me it looks like the entire car is in focus, from the side-view mirror back looks like its more focused than the front half, but its also a black car and hard for me to tell.

Important info...
Shot in manual
1/320
3.2
ISO 100

http://img.photobucket.com/albums/v319/96sohc/IMG_1146.jpg

Any C+C is welcome!

EDIT:
I know I need a circular polarizer, just haven't decided what route I want to go. Buy a decent 52mm for the 50 or get a 67mm and some step up rings.

[Robert_Lay]

The only way you can make a critical analysis of focus is to examine the original at about 3X or 300%. That's about where the pixellation is on a par with the detail.

For the viewers here, there is no way to judge without small sections of full detail 100% crop being posted.
**************100% Crop**************
See my tutorial on making Full Detail 100% Crop, somewhere in the following thread:
http://photography-on-the.net/forum/showthread.php?t=34606&page=2

Courtesy of Bobster:

A more controlled way of posting a 100% crop -

Select the marquee tool - then in the options palette select Style->Fixed Size - key in 200 px X 200 px.

Click with the marquee tool anywhere in your image, and drag this around the screen as with a normal marquee.

Use Image -> Crop to complete the process.

[Ted Nugent]

http://img.photobucket.com/albums/v319/96sohc/IMG_11462.jpg
http://img.photobucket.com/albums/v319/96sohc/IMG_11461.jpg

[Robert_Lay]

At 20 ft., your lens setting would be in focus from 17.5 ft. to 23.5 ft. I suspect that you are looking for confirmation that your lens is better than the depth field limitation. In which case you may have to limit your interest to a shorter depth of field than what you have with this subject at this distance and lens opening.

From your two crops, I conclude that while viewing them at 2X and 3X I cannot see any detail that is as coarse as the pixel size. Therefore, everything seems perfectly sharp relative to pixel size. In other words, you would have to find a camera with considerably higher resoluction than the 8 MP to find out what the real limits of your lens are.

[Ted Nugent]

Thanks, I appreciate it.
I took about 20 or 30 pictures today and all of them were horribly out of focus except for two.
The front of the car didn't look as crisp as the rear half to me, but I guess thats because its black and there weren't many sharp body lines to distinguish.

[adam LC]

It looks pretty good, but I think f/3.2 is too shallow for this kind of shot, you're not giving yourself enough DOF.