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Forum: Digital Processing, Software, and Printing 11-29-2016, 09:18 AM  
LR - best export practices for web/social media
Posted By BrianR
Replies: 13
Views: 1,402
Laying two images in Photoshop or the Gimp and setting the blend mode to "Difference" can help you see any changes that were made, or if the images are a dead match. A free program called JPEGSnoop can bring up the compression settings- subsampling, quantization matrices used, and more detail than anyone needs to worry about for practical applications:).



Great that it's picking up! Definitely keep experimenting for consistency and quality:)
Forum: Digital Processing, Software, and Printing 11-28-2016, 02:13 PM  
LR - best export practices for web/social media
Posted By BrianR
Replies: 13
Views: 1,402
I compared this 570x378 etsy image (what you see before you hit the 'zoom' button) to the flickr and twitter versions.

The Flickr version is identical down to the pixel. It is just grabbing the 'thumbnail' with a resolution of 570x378.

The twitter version is almost identical to the 570x378 etsy version, they've changed the subsampling part of the jpeg compression to be of lower quality. But this is not something you're likely to notice, even if you're comparing very, very closely.

So, if you're unhappy with the end quality, I think you have to blame Etsy's reduction to this size and the other sites grabbing this version.

I think a bigger problem (regarding overall feel of the sharpness) is the small slice of focus you have. For a product photo, I'm personally more interested in seeing all of the object before I buy it, artistic blur doesn't help. You might try stopping down more or look into focus stacking with something like CombineZP (free and pretty easy to use). Just my opinion:). Colour balance does look off, are the lights you're using all the same temperature?
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