Sigma 120-300 C&C

[carshop]

I need your C and C to let me know if these shots are sharp.
These are random shots in my backyard, as is, untouched.

Center Focus Point was on the higher nail.
http://i170.photobucket.com/albums/u263/9058377799/IMG_3471.jpg

Center Focus Point was on the knot.
http://i170.photobucket.com/albums/u263/9058377799/IMG_3469.jpg

Center Focus Point was on the "o".
http://i170.photobucket.com/albums/u263/9058377799/IMG_3479.jpg

[lundgrenj]

Look sharp to me.

[Robert_Lay]

After downsampling and downsizing an image to a resolution less than 1 megapixel, it is no longer practical to use that image to determine sharpness.

It is also impractical to post pictures of 5 or 10 MP at their full resolution and still be within the file size constraints of this forum.

It is necessary to post a full detail, 100 percent crop of some small portion of the image in order to give viewers the same level of detail you see on the full size, full resolution image.


********100 percent Crop Using Photoshop Crop Tool*********
See my tutorial on making a 100 percent Crop with Full Detail in the following thread:
http://photography-on-the.net/forum/showthread.php?t=34606&page=2

********100 percent Crop Using Photoshop Rectangular Selection Marquee Tool*********
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 to the desired location. Use Image -> Crop to make the actual selection. At this point you have a full detail, 100 percent crop of the original image which when posted will give the viewers the same level of detail that you see in your original.

[griptape]

At this size, they seem as sharp as I would expect from that lens. The only thing that bothers me is that bright streak running through the third image on the right hand side. Was that a lighting anomaly or has that shown up in other images as well?