Quality Control Failure Reasons

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Quality control This guide offers an overview of the most common reasons images fail quality control. If you have any questions regarding quality control, please visit the FAQs on our website or email [email protected] Failed image reasons (continued) We fail images submitted to us for a number of reasons; below we have listed some of the most common QC failure reasons and included some examples so you can spot the issues with your images. Here are some example failure reasons and images. Name Description Image example Image example (100%) Blemishes – Dust, Small dark circles/marks, noticeable in scratches or sensor dust areas of flat colour such as skies Blurred or soft image giving he Camera shake impression that the camera moved when the photo was taken Chromatic aberration or Magenta/cyan fringing, particularly ‘coloured fringing’ noticeable on wide angle shots 2 · Quality control Still need help? Get in touch: alamy.com [email protected] Failed image reasons (continued) Name Description Image example Image example (100%) This is caused by having an incorrect white Colour cast balance Blocky or patchy appearancein areas of Compression artifacts flat colour, caused by compressing your files too much Double edges, or artifacts. Don’t sharpen, Excessive sharpening leave it to the customer Artifacts & degradation of detail that can Interpolation artifacts look noisy and soft 3 · Quality control Still need help? Get in touch: alamy.com [email protected] Failed image reasons (continued) Name Description Image example Image example (100%) Excessive noise, always shoot at as low ISO Noise level as possible Retouching is obvious in the image when Noticeable retouching viewed at 100% No point of focus, or out of focus when we Out of focus feel it’s not artistically intended to be Posterised, “blocky” or distorted/unrealistic Over manipulated colours 4 · Quality control Still need help? Get in touch: alamy.com [email protected] Failed image reasons (continued) Name Description Image example Image example (100%) Flat or washed out. Black point should be Poor exposure at 0, white at 255 (or within 5% of) Caused by over increasing the size of an Soft due to size image Marked difference in definition between Soft or lacking definition low-res comp & when viewed at 100% Digital camera not suitable From a digital camera which is below our for Alamy recommended specs Series of similar images with almost Excessive similars identical compositions or only slight differences 5 · Quality control Still need help? Get in touch: alamy.com [email protected] Failed image reasons (continued) Name Description Image example Image example (100%) Film rebate or border We don’t want borders Number of images need 3 images Orientation Make sure your image is the right way up Stripes or banding (more noticeable Scanning artifacts in shadow areas), newtons rings or interference patterns Size be 17MB or more Images which contain (but not limited to) Unsuitable material glamour, pornography & infringement of rights of any third party No need to add your own; we’ll add an Watermark Alamy watermark once the image goes on sale 6 · Quality control Still need help? Get in touch: alamy.com [email protected].

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