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cheramu

Poor-exposure understanding

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Hi,  i'm trying to understand in the picture below that failed the process because of poor-exposure.  Is the threshold graph from gimp a good indicator of exposure? 

poor-exposure.jpg

 

Is the total exposure range to low because the it does not go near white 255 and falls of around 170 or is it that selection blue should fall under 5% black?

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Alamy require white in the image to be at 255.

 

Allan

 

 

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Hi allan, there is no white in the image so far i know. The image is total is as the right half, the other half is the range selection from the thresshold.

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Histogram suggests that there is hardly any contrast in this image, i.e., the image must look extremely flat.

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That is not the sort of image you need to be submitting for your first submission. All you are doing in the first place to get accepted by Alamy is proving you can take a properly exposed, naturally sharp picture. You should be just demonstrating photographic competence, the content is irrelevant. Once you are through the door you can then submit more creative stuff although it may fail or not sell. 

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Hi MDM,  i already passed qc. Just want to  get a better feeling about what will pass, fail and why so i can learn what to post with less fails in the future.

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8 minutes ago, cheramu said:

Hi MDM,  i already passed qc. Just want to  get a better feeling about what will pass, fail and why so i can learn what to post with less fails in the future.

 

OK I assumed this was your first submission as you have no images showing. Some people suggest pushing the boundaries on the initial submission as you won't damage your QC record whereas you will if you keep submitting failing images after passing in the first place.

 

Just to add there is no strict requirement to reach 100% white - you just have to look at the millions of images that are underexposed either in camera or in development - but it is a guideline. Obviously there are many scenes that do not have a full tonal range as well and it would be silly to refuse these on that basis.

 

To be honest your image doesn't look so much underexposed as heavily manipulated. It does go to 100% white in places as well (eyedropper is better than histogram, never used GIMP so don't know of it has one).

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2 hours ago, cheramu said:

Is the total exposure range to low because the it does not go near white 255 and falls of around 170 or is it that selection blue should fall under 5% black?

 

You can always upload somewhere else for display and e-mail contributor service and ask whether you should upload as photo or illustration.

 

This one passed as a photo a few years ago:

 

 

Big old oak tree with winter leafless branches in silhouette as a pen and ink, black and white, artistic illustration - Stock Image

                     EYG2WE

 

Wouldn't recommend to experiment too much at this stage to see where the limit is  :)

Edited by Niels Quist

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Yeah will keep uploading 'properly exposed, naturally sharp pictures'  and limit the ones i'm not 100% sure about. thanks

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A subject must 'read' and that bird's head disappears into the black background. 

 

I never look at a histogram, yet it's been many years since I've had a QC fail. I read the actual scene. 

 

Edo

  • Upvote 1

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15 minutes ago, Betty LaRue said:

I see a thin light line defining the head.

 

Me too. The bird's head is clearly defined on my monitor, which is a pretty run-of-the-mill one.

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On 03/02/2018 at 03:00, Betty LaRue said:

I see a thin light line defining the head.

 

Me too.

 

Allan

 

 

Edited by Allan Bell

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Surely, if you have passed the initial QC your first images should show in your total images under your profile on the left?

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27 minutes ago, John Walker said:

Surely, if you have passed the initial QC your first images should show in your total images under your profile on the left?

 

Perhaps the OP hasn't keyworded them yet.

 

Gen

Edited by gvallee

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Hi John, gvallee is right and i did not tag the initial passed images yet, they are also not on sale. So to answer you're question passing you're initial QC does not relate to the total images under profile.

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On 2/3/2018 at 04:29, Allan Bell said:

 

Me to.

 

Allan

 

 

 

Oh no! Not another movement! :wacko:

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If you have passed the initial QC then why don't you tag your images?

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Want to have a bit more uploaded and then spent a day tagging in one go. 

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49 minutes ago, cheramu said:

Want to have a bit more uploaded and then spent a day tagging in one go. 

 

A tip: tag before uploading, your images will automatically go on sale after 24 hours if they have tags and a caption.

Best way is to use Bridge or LR to tag. Much quicker that way.

 

Hope this helps.

 

Gen

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Agreed. I tag in Bridge. They stay in the order I want.

Betty

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Yes I tag in Photoshop and like the others have said they go on sale automatically, so a few moments extra per image in editing and they are on sale

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Don't have LR/Photoshop, i'm using the SILKYPIX editor mostly. But will keep it in mind for the future.

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