MicrostockGroup

thankyou jerry

Dear White Child,

Below please find the photo link that taken without the extension lens.
http://www.flickr.com/photos/41024635@N03/3889284956/#

Do you think it is better than the photos before with extension lens?

It also looks a little bit soft to me. Maybe you can post a part of the picture in the original size? Only at 100% we can best see the technical issues.

UV filter doesn't look like problem to me. Both images have the same sharpness. But, as Goldenangel said, we have to check it at 100% size. Crop some focused small part of the image and post it in original size. Don't resize it to 1024 pix.

Ok chl, I got your image and here is what I saw:
The image itself has good lighting, but it lacks contrast. Somehow, that lack of contrast makes it look a bit soft, If you take a close look at the center of the image (the focused part) you will notice that leaves edges are sharp enough, but one thing is missing...leaves texture. I guess it's because the contrast of the image is pretty low and those small differences in contrast that make the texture of the leaves visible are missing. The other problem is chromatic aberration (purple fringing). It's not strong in focused part of the image, but if you look at other parts it's pretty strong, especially when you get close to the corners if the image. It's normal to have chromatic aberration in those parts of the image when they are not focused, but on your image it's little too much. I don't know how much you paid for this lens, but obviously it's not very good. I don't say you have to spend thousands of dollars to have a decent lens, but this one will give you pretty much trouble. I honestly think you should consider the possibility of selling this, and buying some new lens. I didn't have time to find and read some review for this lens. You can google for it. I just told you what I saw. Next time when you buying some new lens read as much reviews as you can.

Now, what you can done to make some of your images acceptable on microstock. In your place, after full editing of image, I would apply very small amount of sharpening, and resize the image to 4 Mpix as a final step. I also tried to increase the contrast on your image using curves, and after is I resized the image to 4 Mpix, and it looked just fine. Both methods looked good with this image. The only problem still remains chromatic aberration...if it's too visible, your image will be rejected again.

Good idea...

Maybe he thinks he can turn back this lens and get another one while still in guarantee...

I haven't had issues with purple fringing with this lens, but since it seems that some day I will. Maybe you can explain how to correct it with Photoshop, CS3 or Elements for all the people who will be reading the thread? Others describe it as "easily" correct. 

I've had images submitted to IS rejected for purple fringing, when they were identical to red, orange and green subjects, same lighting, settings, everything, but the subject was Blue. Funny how that works?

The second method has worked for me:
http://submit.shutterstock.com/newsletter/133/article1.html

A)  A couple of years ago I read about a photoshop action called "Purple Fringe Killer" on luminous-landscape.  I can't remember where I got it, it may or not be the one mentioned in the link below:

http://blog.lorrifreedman.com/index.php/2008/07/30/hdr-and-the-purple-fringe/

B)  I read about another fairly inexpensive (around 25 US bucks) plugin called PT lens while researching a lens with distortion problems at 17-18mm on the istock forum.  PT lens runs either as a filter in photoshop or stand alone, and you can zoom into the purple fringe area, and adjust sliders to modify the fringing.

I usually try to remove the fringing on a layer with a selection, so the modification only applies to the problem area.  Purple Fringe Killer is sort of automatic, there are no settings, it just runs, as opposed to PT lens which has other options and things it can accomplish.  The only downside to PT lens that I have found is it runs out of memory on a stitched panoramic of 3 tiles or more, so then "purple fringe killer" is the only choice.  Most of my purple fringing areas occur when an object intersects with a bright blue sky, like around a light pole in a parking lot, or a shiny roof edge against the sky.

Hopefully one day I can upgrade to better glass, and this problem will go away completely.