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Author Topic: Alamy Online Uploads  (Read 11028 times)

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« Reply #25 on: September 10, 2007, 16:53 »
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then why does the Raw files that come out of the 5D range from 12 - 17 MB.  They aren't compressed.


« Reply #26 on: September 10, 2007, 17:22 »
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then why does the Raw files that come out of the 5D range from 12 - 17 MB.  They aren't compressed.

Hi again,

Just because RAW files save 4096 levels of luminosity and JPEG only has 256 (for each pixel). That's why RAW files take up so much space, and when you save to JPEG it shrinks... And that's also why you can adjust so much more on a raw file than on a jpeg... you have so much more to work with... 16x more data (even tough it doesn't necessarily reflect 16x more space occupied because it's just a matter of adding 4 bits to each color channel and 4 more for the luminosity channel). RAW is 12 bit data while JPEG is 8 bit data.

Regards

Francisco Leito

« Reply #27 on: September 10, 2007, 20:23 »
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Ok then, since this seems to get MORE confusing with every post. LOL...

Just let me ask this... if someone wanted to upload an image to Alamy then via their web site upload feature, and they're using a 10D (6MP) or XT (8MP) camera - what exactly should they do?   Resize the image to 3455 x 5150 (abouts) first, then just save it as best quality as a .JPG, then send it that way?     I use Paint Shop Pro, not Photoshop, but you can of course save it as quality "1" which in Paint Shop is the least compressed save.


« Reply #28 on: September 10, 2007, 20:50 »
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Ok then, since this seems to get MORE confusing with every post. LOL...

Just let me ask this... if someone wanted to upload an image to Alamy then via their web site upload feature, and they're using a 10D (6MP) or XT (8MP) camera - what exactly should they do?   Resize the image to 3455 x 5150 (abouts) first, then just save it as best quality as a .JPG, then send it that way?     I use Paint Shop Pro, not Photoshop, but you can of course save it as quality "1" which in Paint Shop is the least compressed save.

What i do is after i done all the editing to the photo i upsize it by 144% if it is an original 8MP file, or as needed if i cropped or is some other file. I can see that through Photoshop resize dialog, where it shows the uncompressed size when you select the percentage or pixel number you want. Photoshop shows what you had and what you will get in terms of pixel size (which is no more than uncompressed size). I don't know about PSP, but probably there is something similar also on the resize dialon, no ?

Regards

Francisco Leito

ianhlnd

  • tough men are pussys
« Reply #29 on: September 15, 2007, 20:22 »
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Alamy gets a big kick out of all the questions about Mb, as a matter of fact, I think the word they use is "flabbergasted".  I used to think the file had to be 48Mb on disk, that ment I blew it up til you couldnt see anything at 100%, then I got their idea.  It's a problem with us English speakers, you never know what the heck the other persons talking about.

Pixels, Mb's, it's a British thing.  Go figure.

« Reply #30 on: September 16, 2007, 08:20 »
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I thought I knew what was wanted... now...  i'm confused......... ???

My files come out of the cam  at 18meg.

My understanding was that I had to uprez them to 48meg. (pixels approx 5100 x 3300 )

That's what I did ....and uploaded them to Alamy.

Did I do the right thing ...or will I be getting a fat reject from the other side of the big pond?  :-\


signed, confused in  new jersey.    8)-tom

« Reply #31 on: September 16, 2007, 13:21 »
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If the size is to small the upload will warn you before uploading. The problem is with a dvd/cd, they can't warn you ;)

Olga

« Reply #32 on: September 16, 2007, 14:09 »
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I got the email also but I have only a Canon 300d *sigh* SY

« Reply #33 on: September 16, 2007, 14:41 »
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Tom - you may be ok.  Think of it this way....

48mb TIFF file at 8bit
96mb TIFF file at 16bit
17mp JPG (approximately 5100 on the long side)

I shoot with a 16.8mp camera and upsize to about 5100 x 3400


« Reply #34 on: September 16, 2007, 17:07 »
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then why does the Raw files that come out of the 5D range from 12 - 17 MB.  They aren't compressed.

my point with this post was that the image size depends on what colors are in the photo - ie the images range in size from 12-17mb. 

« Reply #35 on: September 19, 2007, 16:01 »
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..........guess I did it right...   I got accepted on Alamy.... 

« Reply #36 on: September 19, 2007, 18:10 »
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ol.
 My English is very poor... 

But I want, if possible, a reply for my doubt: I was invited to send photos for test in Alamy. It will be that I can send the same images that already I sent for other sites microstock?

  Very obliged for the reply inaquim

I am only uploading new photos to Alamy that are not on the micro sites.  They sell for a lot more on Alamy and I don't want someone paying $200 for a photo and then finding it on a microstock site for $5.  They might ask for a refund and that wouldn't be nice.

« Reply #37 on: September 20, 2007, 12:03 »
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Total sales five photos  ;D from an entirely RM portfolio of about 2,600

If the photo is of a popular subject I usually send to the micros.  If in doubt search the Alamy site. As remember as a Newbie your Alamy index will be low so your photos will go to the back and their is only one search criteria no searching by contributor, age, Dls etc.

Hmm, why do you bother submitting there then? You know what one can make on SS for example with a good portfolio of that size... and sometimes things that you don't think would be popular do really well on micros - just because there is less competition. Maybe I am missing something but submitting there doesn't seem like a good deal at all.

« Reply #38 on: September 26, 2007, 22:11 »
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Maybe someone already said this and I missed it, but the 48MB image size Alamy calls for is the file resolution (MP,  WxH) times 3 (r, g, b). Each pixel needs 3 bytes, one each to describe r, g, b of the pixel.

So a 16MP file would be 48MB, as reported by Photoshop in the bottom of the window. It has nothing to do with the file's storage size as a JPG or TIF or RAW file.

I wonder why Alamy doesn't upsize this themselves, like some of the micros indicate they'll do if they want to offer XL sizes on files that were a little smaller than XL.


 

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