Quality Issues

Question

Please help me understand the quality issues here.

Ricky336 · Accepted Answer

Hello,One thing you need to bear in mind regarding your lenses (I'm going to assume it's a kit lens that comes with the camera) is that most unfortunately, the kit lens (generally the APS -C) lenses are crap; the reason is to keep down the cost, but this results in a crap lens and not-so-good photos - focus, sharpness, contrast etc. I would suggest looking for a second-hand lens, e.g. Sigma, Tokina, Canon, etc. (These lenses do a Canon mount.) The result of your less is not so much a focus problem, but rather the sharpness of the lens. And therefore you will run into quality issues. @Abambo made some good points! Have a read of this. It's a brief guide on quality:https://helpx.adobe.com/stock/contributor/help/reasons-for-content-rejection.html And:User guide:https://helpx.adobe.com/stock/contributor/user-guide.htmlExposure:https://www.adobe.com/creativecloud/photography/discover/exposure-in-photography.htmlComposition:https://www.adobe.com/creativecloud/photography/discover/photo-composition.htmlLearn and support: https://helpx.adobe.com/support/stock-contributor.html

Abambo · Answer

You have several major issues in that image, including missing sharpness (which may be related to the used lens) and chromatic aberration:

This is a screenshot at 100% and should be crisp sharp! The Arrow points to the chromatic aberration. The asset also misses contrast. Looking at the histogram shows that:

You see to the left missing blacks, to the right a bigger junk of missing whites.

Here are my parameters, that I would apply (more or less) to an image like this:

The paved floor (arrow) still requires a separate colour correction.

As for your Camera settings:

1. The lens is indeed one of the weaker Canon lenses. It's fine for training, but it tends to chromatic aberration and missing sharpness, especially, when full open like here (f 4.5).

2) You should start to shoot without the nice programs and train you to manual settings. If I remember well, the action programs only shoot JPEG, that limits your options when editing later on. ISO 250 is borderline for noise in this camera. You can shoot well above that setting, but stock asks for nearly noise free assets. The Exposure at 1/500s is faster than needed. If you lower the ISO and modify the opening, the lens will get sharper and the DOF will be higher.

3) It's irrelevant and will not lead to a refusal, but you should set the “resolution” (it's the wrong term used here by Photoshop, pixel density would be better) to 300 ppi. The image won't get better, having more pixels etc, but you would avoid discussions with some people.

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