| Author | Thread |
|
|
04/16/2010 08:59:25 AM · #1551 |
Hang on. I use Lightroom...so, starting with a RAW file do you save asa Tiff and THEN in PS, resize to a jpeg?
Or can you save as a jpeg from LR...open in PS then upsize to 48M? |
|
|
|
04/16/2010 09:07:00 AM · #1552 |
I'm no expert so someone may say that what I am doing is wrong.
I start with RAW, convert to jpg. Open in photoshop, do my editing, then save as TIFF. Then I do steps 2,3,4. I don't know anything about Lightroom :(
I have had photos accepted using the steps I listed below. |
|
|
|
04/16/2010 09:18:05 AM · #1553 |
Originally posted by colorcarnival:
Hi Steve - this is something that I used in the past. I also have another file with some screen shots from Photoshop that I can send. If you want it, send me your email.
1. Carefully process your file until it looks exactly the way you want it to look. Save it as an 16-bit TIFF. <<< is this from Lightroom?
2. Using Bicubic Smoother in Photoshop, increase the image size to a width or height of 5128 on the largest side, let the other dimension fall where it may. (that makes a 50 megabyte file when the JPEG is open, you'll see this at the bottom of the image window in Photoshop) <<< Is the upsizing occurring while still in tiff
3. Change the mode to 8-bit (from 16-bit) <<< I don't see a "mode" switch in my PS dialog box...?
|
...a few questions.
Message edited by author 2010-04-16 09:18:33. |
|
|
|
04/16/2010 09:36:55 AM · #1554 |
Steve, I don't think you can do the save as a 16 bit TIFF in Lightroom but I could be wrong. Do everything you want in LR then move it to PS for the sizing and saving part. Then yes, do the sizing while still in TIFF format. For the changing from 16 bit to 8 bit, also in Photoshop, go to the Image tab - first option is Mode, and just check the 8 bit setting.
Hope this helps! (And good luck. I probably need to try something again there one of these days.) |
|
|
|
04/16/2010 10:27:50 AM · #1555 |
No matter what I'm doing my File Size converted from tiff (8 bit or 16 bit) into a jpeg (4256 long side or 5128 long side) is no more than 8.6M.
At 15,000 x whatever, it will then be 48M as a jpeg. So, when I start with a 16 bit or 8 bit (4256 px) file saved from Lightroom how much do I need to upsize to get it to 48M? |
|
|
|
04/16/2010 11:13:06 AM · #1556 |
JPEG is a compressed format and you will never get a JPEG to 48M with current camera's. Tiff is uncompressed.
In photo shop got to Image - size and a popup will open.
Notice at the top where it says Pixel Dimensions: 30.9? that is the uncompressed size that they are looking for. But this one is not high enough so we do:
Notice that I changed the width to 5128 and not the pixel dimensions says 50.0M. This is what they are looking for. Make sure you have Constrain Proportions checked and resample image (make sure you have bicubic selected)
Now save your enlarged file as a JPEG at max (12) setting. The JPEG should be around 8 or 10 Meg. This is the file size they are looking for. Your JPEG is not going to be 50M because it is a compressed format. Also make sure you work in PSD or TIFF and only convert and save as JPEG when you are finished and ready to do something with the photo. If you find that you need to edit something after you have saved as JPEG, open up your PSD or TIFF and make the edit, not the JPEG.
Ronnie |
|
|
|
04/16/2010 11:19:36 AM · #1557 |
| ok...is there a difference between "Pixel Dimension" and "File Size"? They are asking for a File Size of 48M to whatever... is that correct? |
|
|
|
04/16/2010 11:26:10 AM · #1558 |
The pixel dimension is the uncompressed file size. I quote from Alamy "Uncompressed file sizes of more than 48MB, we recommend that you do not interpolate your files to more than 55MB. This means you should make your JPEG file from an 8 bit TIFF file that is at least 48MB. If you have a camera that is capable of producing an uncompressed 8 bit, TIFF file size of over 48MB then leave it that size."
If you get your pixel dimensions to 50M save it as a TIFF and then as a JPEG. Now like at the actual file size of the saved images. You will notice that the TIFF is what the pixel dimensions said and the JPEG will be much lower, should be around 9M (this depends on the picture, one of a blank wall will be smaller than one of tree branches. This is all dependent on the amount of info in the picture and how it is compressed).
As long as when you resize the image in PS and the pixel dimensions says around 50M the JPEG you save from that (at max setting of 12) will be in the range they are looking for. |
|
|
|
04/16/2010 02:27:18 PM · #1559 |
| Thanx for the help. I'm trying 3 images to see if they pass QC. |
|
|
|
04/16/2010 03:07:38 PM · #1560 |
|
|
|
04/16/2010 04:15:32 PM · #1561 |
The formula for calculating file size is:
[L (pixels) x W (pixels) x 3 (24bits/8=3bytes)] / 1 million = megabytes
A file 4800 x 3600 pixels in 8-bit RGB mode = 49.5MB uncompressed:
(4800 x 3600 x 3) / 1,000,000 = 51.84 (discrepancy because a megabyte isn't exactly a million bytes, but rather 1024 x 1024 = 1,048,576 bytes; using that you end up with 49.4384765625 -- close to 49.5) |
|
|
|
04/17/2010 04:04:59 PM · #1562 |
Originally posted by pawdrix:
Hang on. I use Lightroom...so, starting with a RAW file do you save asa Tiff and THEN in PS, resize to a jpeg?
Or can you save as a jpeg from LR...open in PS then upsize to 48M? |
Personally, I just use Lightroom to do the upsizing; in the Export dialog, under Image Sizing I just tell it 'Resize to Fit', set the short edge to 3500 pixels.
No point in making more work for yourself :) |
|
|
|
05/13/2010 11:11:20 AM · #1563 |
Got in with Alamy on the first try...so happy! Now, who should I set my sights on next? From reading older forum threads, iStock is pretty much small potatoes (and I am already with Fotolia, selling p&s images for .30 each). And if Shutterstock is still royalty-free, does it make any sense to sell through them?
So which big hitter should I go after now? Corbis? Getty? |
|
|
|
05/13/2010 01:05:12 PM · #1564 |
Yes, you should sign up for Shutterstock (you can use my referral link), particularly for images which are too small or otherwise unsuitable for Alamy or other macro-stock sites. I wouldn't put the same (or really similar) images at both types of sites.
Shutterstock's subscription model encourages more downloads, even though they don't pay that much for each. The key with SS and other micro sites is to upload a lot of pictures -- I only have about 150 posted, but people with hundreds or thousands of images can be making in the three-figure range each month.
Shutterstock has gotten pretty picky about noise, focus, and copyright/trademark issues. |
|
|
|
05/13/2010 01:07:11 PM · #1565 |
| Ok thanks Paul, will give them a go. Off to upload more images to Alamy... |
|
|
|
02/02/2011 06:52:16 PM · #1566 |
Never mind - it was an Alamy glitch. For three days it said my image was too small (it wasn't) and then on the fourth day it was accepted for upload just fine. Maybe photo files just need to age a bit.
Message edited by author 2011-02-07 09:16:59. |
|
|
|
02/02/2011 11:40:16 PM · #1567 |
I'm not real active at uploading photos onto Alamy, but I was pleasantly surprised last week by a check for $312 :)
|
|
|
|
02/03/2011 06:27:14 AM · #1568 |
Originally posted by fotomann_forever:
I'm not real active at uploading photos onto Alamy, but I was pleasantly surprised last week by a check for $312 :) |
Did it involve a scantily clad woman? ;-) *ducking* |
|
|
|
02/03/2011 11:29:08 AM · #1569 |
Originally posted by snaffles:
Originally posted by fotomann_forever:
I'm not real active at uploading photos onto Alamy, but I was pleasantly surprised last week by a check for $312 :) |
Did it involve a scantily clad woman? ;-) *ducking* |
No, which is why I'm not very active....lol
|
|
|
|
03/22/2011 12:19:06 PM · #1570 |
| How do you all think of stuff to shoot for stock? Also does it seem like shots with people sell better then non people shots? |
|
|
|
03/22/2011 12:53:31 PM · #1571 |
Originally posted by MinsoPhoto:
How do you all think of stuff to shoot for stock? Also does it seem like shots with people sell better then non people shots? |
Most of the stock sites will have a link to display their most-frequently downloaded images for the previous week/month/year, and some will also have a page of most common search terms.
When deciding what/how to shoot, I ususally look at something and try to visualize how I would create an ad using or for that subject. But I'm not that successful at stock, so that might not be the best plan ... |
|
|
|
03/22/2011 06:05:57 PM · #1572 |
| Thanks General, I was aware of that just was wondering about a more proactive approach. I think you nailed it though with what you said about thinking about it from an advertisers viewpoint. |
|
|
|
03/25/2011 10:37:33 PM · #1573 |
| Quick question. How long after approved photos are keyworded or made "ready" does it take for them to be visible for sale? Thanks! |
|
|
|
03/26/2011 10:54:29 PM · #1574 |
Bump. Still not sure if my approved photos are available yet. When I try to pull them up as if I'm a customer, mine don't show.
Just trying to make sure that I followed the steps correctly. Does anyone know the time frame or have any info? The Alamy member services didn't respond to my email yesterday...probably the timezone difference. |
|
|
|
03/27/2011 07:49:28 AM · #1575 |
Originally posted by Marjo:
Bump. Still not sure if my approved photos are available yet. When I try to pull them up as if I'm a customer, mine don't show.
Just trying to make sure that I followed the steps correctly. Does anyone know the time frame or have any info? The Alamy member services didn't respond to my email yesterday...probably the timezone difference. |
If you go to my alamy and click on track submissions you should be able to find out if they have been approved or rejected or if they are still in screening with an eta time.
Just sent my 4 test images last night... |
|
Home -
Challenges -
Community -
League -
Photos -
Cameras -
Lenses -
Learn -
Help -
Terms of Use -
Privacy -
Top ^
DPChallenge, and website content and design, Copyright © 2001-2025 Challenging Technologies, LLC.
All digital photo copyrights belong to the photographers and may not be used without permission.
Current Server Time: 07/18/2025 12:31:06 PM EDT.
