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Microstock Photography Forum - General => General Stock Discussion => Topic started by: cdwheatley on April 02, 2008, 17:40

Title: Does anyone know for sure which sites convert adobe RGB to sRGB for thumbnails?
Post by: cdwheatley on April 02, 2008, 17:40

I know Istock converts Adobe rgb to srgb for thumbnails, but how many of the other sites are doing that now?

Title: Re: Does anyone know for sure which sites convert adobe RGB to sRGB for thumbnai
Post by: rinderart on April 04, 2008, 19:26

All, If there smart.

Title: Re: Does anyone know for sure which sites convert adobe RGB to sRGB for thumbnai
Post by: Phil on April 04, 2008, 20:23

Quote from: rinderart on April 04, 2008, 19:26

All, If there smart.

and thats why I do it myself before uploading :)

Title: Re: Does anyone know for sure which sites convert adobe RGB to sRGB for thumbnai
Post by: digiology on April 04, 2008, 22:18

Me three.

Title: Re: Does anyone know for sure which sites convert adobe RGB to sRGB for thumbnails?
Post by: monilu on April 05, 2008, 00:01

So I should (shoot and) work in adobe RGB color space, and then convert after post-processing, just before saving to jpeg?  Another question.. which settings are best to use when converting to sRGB ( i.e. perceptual, relative colorimetric,  black point compensation, etc)?

This color space issue has had me a bit confused for the past several weeks (especially after noticing how drab some of my food photography thumbnails looked upon being accepted at some sites) and I'd love to get a definitive answer!

Thanks! :)

Title: Re: Does anyone know for sure which sites convert adobe RGB to sRGB for thumbnails?
Post by: cdwheatley on April 05, 2008, 01:47

Is it just a waste of time to upload Adobe RGB? Starting to get that impression  :-\   

Title: Re: Does anyone know for sure which sites convert adobe RGB to sRGB for thumbnai
Post by: rinderart on April 05, 2008, 16:13

Quote from: monilu on April 05, 2008, 00:01

So I should (shoot and) work in adobe RGB color space, and then convert after post-processing, just before saving to jpeg?  Another question.. which settings are best to use when converting to sRGB ( i.e. perceptual, relative colorimetric,  black point compensation, etc)?

This color space issue has had me a bit confused for the past several weeks (especially after noticing how drab some of my food photography thumbnails looked upon being accepted at some sites) and I'd love to get a definitive answer!

Thanks! :)

just shoot SRGB. relative colormetric and blk point compensation.Unless your doing a lot of printing, then I would use Prophoto profile.For general use Just use Srgb and forget it. Your monitor is Srgb.

Title: Re: Does anyone know for sure which sites convert adobe RGB to sRGB for thumbnai
Post by: cphoto on April 05, 2008, 22:45

Quote from: cdwheatley on April 05, 2008, 01:47

Is it just a waste of time to upload Adobe RGB? Starting to get that impression  :-\   

Yes, it's a big waste of time.
I just shoot JPEG sRGB and I'm done with it.

Title: Re: Does anyone know for sure which sites convert adobe RGB to sRGB for thumbnai
Post by: stokfoto on April 06, 2008, 08:01

I always shoot raw and convert my files to adobe rgb tiff then  to adobe rgb jpg as we know SRGB  looks better on computer screen  but for printing purposes RGB is preferred.and you know converting  your colour profile from RGB  to SRGB is an easy task but if you convert  an SRGB file to   RGB you wouldn't get the same quality of an original RGB file thus I stick with my work flow and as mentioned above all sites should convert thumbs to SRGB for better looking colours.
may be all the sites  should  explain that  in their photo requirement sections  to end the confusion that  many contributers have.   

Title: Re: Does anyone know for sure which sites convert adobe RGB to sRGB for thumbnails?
Post by: vonkara on April 06, 2008, 09:32

Do you see the difference... Here's 123RF that I fin d more natural
(http://us.123rf.com/400wm/400/400/vonkara/vonkara0804/vonkara080400004/2801324.jpg)

Here's Istock
(http://www1.istockphoto.com/file_thumbview_approve/5702678/2/istockphoto_5702678_beach_girl.jpg)

All two shot in adobe RGB no conversion at all?? (from Jpeg)

Title: Re: Does anyone know for sure which sites convert adobe RGB to sRGB for thumbnails?
Post by: vonkara on April 06, 2008, 09:37

Here's Stockxpert. It's clear that Istock have change something...
(http://images.stockxpert.com/pic/m/v/vo/vonkara/11576181_93456717.jpg)

Title: Re: Does anyone know for sure which sites convert adobe RGB to sRGB for thumbnai
Post by: stokfoto on April 06, 2008, 10:22

Vonkara,
your examples prove that they are not using standard parameters.
I agree with you the image on the top looks more natural however I believe more buyers would notice IS's thumb   as its  colors more vivid thus would attract  more attention(imo)

Title: Re: Does anyone know for sure which sites convert adobe RGB to sRGB for thumbnails?
Post by: vonkara on April 06, 2008, 17:44

Another example whit an other picture... This one was rejected for overfiltred first and finally accepted via scout (Istock)
(http://69.90.174.251/photos/display_pic_with_logo/103636/103636,1204597488,3.jpg)

(http://www1.istockphoto.com/file_thumbview_approve/5522840/2/istockphoto_5522840_drill.jpg)

This time whit Shutterstock and again Istock is the most away from the natural colors. Maybe this explain some overfiltred rejection?