Wednesday, March 17, 2010

iStock Image Sizes

Took me a while to find this information and figure it out, so I though it was worth posting my findings here.

The Story

Basically I have a Nikon D40 which is a 6 megapixel digital camera with a sensor sensitivity of only 200 ISO - it's a great camera but I've recently become a contributer to iStockphoto and have had some files rejected because of artifacting and noise issues:

This file contains artifacting when viewed at full size. This technical issue is commonly created by the quality settings in-camera, in post-processing, in RAW settings or scanner settings. Artifacting can also be introduced into an image from the result of other factors such as excessive level adjustments.

Noise (pixels of varying color where there shouldn't be) is most commonly created by digital cameras, especially in darker shadows or under low-light conditions and exacerbates the compression issues mentioned above. You might want to double-check to make sure that your camera's ISO/ASA setting is at the lowest number (usually 100). In digital cameras, higher numbers (200 or 400) will always result in more noise (just as with film).


blue noise
Hopefully you can make out the 'noise' in this sample - enlarged by 200% - from a rejected image

As I already shoot in RAW settings and use minimal post-processing in the latest version of Camera Raw I appear to be up against the limits of my camera (that's another story... currently saving for an upgrade). There are solutions to this e.g. blurring sky to remove noise - which tends to turn up in large blocks of colour - but this seems to be a lot of work fiddling in Photoshop for no guarantee of a decent return i.e. time spent vs earnings. Which leads me to another possible solution... resizing the image to decrease the appearance of artifacting and noise. BUT obviously, you want to upload an image with as large a pixel area as possible, so it is available at the most sizes and you don't miss out on money because you resized the image and it was too small.

So what are the iStockphoto size minimums?

• XSmall, 300×400 = 0.12 MP minimum, 1″x 1.5″ @ 72dpi
• Small, 600×800 = 0.48 MP minimum, 2″x 3″ @ 72dpi
• Medium, 1200×1600 = 1.92 MP minimum, prints 4″ x 5″ @ 300dpi
• Large, 1920×2560 = 4.92 MP minimum, prints 6″ x 8″ @ 300dpi
• XLarge, 2800×4200 = 11.7 MP minimum, prints 9″ x 14″ @ 300dpi
• XXLarge, 3300×4900 = 16.2 MP minimum, prints 11″ x 16″ @ 300dpi
• XXXLarge, 3700×5600 = 20.72 MP minimum, prints 12″ x 18″ @ 300dpi

What this means is if you wanted to upload your image at the lowest boundary of the "medium" size it would need to be 1600 pixels x 1200 pixels (BTW: this is also the smallest size accepted by iStockphoto) - what this actually means is that the image pixel area must exceed 1,920,000 pixels (or 1.92 MP) and technically, you could submit an image that was 1 pixel wide x 1,920,000 pixels high! As long as the total image pixel area (i.e. the pixel width multiplied by the pixel height) is 1,920,000 pixels then it meets the minimum size requirements for the "medium" image size.

69 comments:

  1. The Istock images size are the best Way to get Update for the stock exchange get new Hostgator coupon and make a new webpage which is the world's heavy page ever so getting new one here also and make me update.

    ReplyDelete
  2. Thank You for sharing such a great information!! Acer Customer Services

    ReplyDelete
  3. Thanks for this informative post with us. It really helps us a lot.

    AOL Customer Service

    ReplyDelete
  4. It would be really nice to keep in touch. If you would like a follow let me know.
    Apple customer service

    ReplyDelete
  5. Your blog posts are more interesting and impressive. I think there are many people like and visit it regularly, including me. I actually appreciate your wonderful blog and I will be sure to come back here again to see such great post.Yahoo Support

    ReplyDelete
  6. If you have any problem related to Lenovo products do visit us on this link.
    Lenovo Customer Support

    ReplyDelete
  7. It's very informative Blog, it's more helpful to us thanks for sharing keep it up!!! Firefox Customer Tech Support

    ReplyDelete
  8. Superb, what a web site it is! This webpage gives valuable facts to us, keep it up.
    iPhone customer support

    ReplyDelete
  9. I really like the information present in your post, it is very informative and it is very helpful for us. Chrome Customer Service

    ReplyDelete
  10. It's very informative Blog, it's more helpful to us thanks for sharing keep it up!!! Opera Tech Support

    ReplyDelete
  11. I visit your online journals and Best escort service in Chandigarh get empowered through the data you unite however the present blog would be the most appreciable.Thanks for Jaipur call girls services allowing your blog to me Keep sharing your next posts.

    ReplyDelete
  12. If girls like this gesture of you then continue with that touch her hand very lightly and continue with that. Hookup Apps

    ReplyDelete
  13. I have read your article, it is very informative and helpful for me.I admire the valuable information you offer in your articles. Thanks for posting it. How to get help in Windows 10

    ReplyDelete
  14. I am so thankful to find your particular publish. I have stored this website and I will keep going to you for further such exciting posts. Escorts in Delhi | Independent Escort in Delhi | Royal Delhi Escort | Delhi Hot Babes | Female Escorts in Aerocity | Gurugram Escorts Service

    ReplyDelete
  15. The consideration for it is that since most of the benefit tends to be personalized in quality. Have you fixed a supposition to the connection just of the Kolkata Escorts support? The Independent Kolkata Escorts are fine much experienced when it comes to go and she is sensitive of a lot of travel locations. This in no moving means that they are here to go injustice to the job as they make it a step that all the needs of the clients are taken care of. The offices which are immolated by them are something that you can hardly stay from your partners. They are the faultless repay to all your doubt and when you are with them, trust me you can go on to have all your fantasies in life fulfilled. She will take oversight of everything. If you are businessmen and need take of your guests during your material parties, then they will entertain them in the best possible manner. It is not only the single men, but wed men who are not satisfied with their wife are benefiting the Kolkata Escorts Services.

    ReplyDelete
  16. The Indian Exotic female escorts in Kolkata, Mumbai, and Delhi are here waiting for you, because we know that most of national and international travelers want to make their score in India with hot escorts serving as sexy playmate. Visit my site links -
    Independent Escorts Service Udaipur
    Independent Escorts Service Kolkata
    Independent Escort Service Delhi
    Dehradun Escorts
    escort services near me
    Call girls Service in Mumbai


























    ReplyDelete
  17. Welcome to my own site make your mood. in where that you can value that how Chennai escorts administrations delivering by method for me and my restrictive administrations at above Chennai Escorts every single moderate bill at 24 hours. By and by a days, individuals are dwelling disagreeable and riotous ways of life. This is for the reason that they are Chennai Escorts confronting distinctive fights over a mind-blowing span. With the goal that you could overcome it, unique decisions are obtainable for them (free escorts in Chennai offering by methods for me). Likewise, you must invest some vitality for yourself.

    Chennai Escorts
    independent Escorts in Chennai
    Chennai Escort Agency
    Chennai Escort
    Escorts in Chennai
    Call Girls in Chennai
    Chennai Escort Service
    Independent Chennai Escorts
    Russian Escorts in Chennai

    ReplyDelete
  18. I enjoy going to clubs, foreign holiday destinations, beaches etc. I always try to experience something new. While I am with my clients, I have a desire to try new things. I do not believe in being intimate only, but it is the body that should be satisfied and the last love you are looking for.Zirakpur Escorts Service The kiss which you will feel that you are in a deeper world of excitement and imagination. You can also choose Zirakpur Call Girl Service or Zirakpur Escorts Service, but to realize the depth of the body of a woman your actual passion can be provided to you by independent Zirakpur escort services.

    Zirakpur Escorts Service not only makes your time a better experience but also add-on extra ordinary allurement. These girls can simply explore your cravings and smoothly take them out to the real world. Everyone knows what happens if a sexy, cheerful and completely devoted girl touches. The feelings that comes around if really awesome. As it already been experienced by many of us in past with girl friends. First feelings does take all the impressions of memorable moments.

    ZirakpurEscortsService,here is seductive escort once in a lifetime experience. I am very sexy with a gorgeous natural body. As I am very friendly and I love to have nice experience and unforgettable moments. I offer class and good service. Everything you realize change once you pretend yourself to some esteem moments of time with Me! Call now to book your date with ME and get ready for to experience of unbelievable heights. If you would like to make an appointment to see me


    Zirakpur Escorts, Fun With http://www.zirakpurescortservice.in Independent Models Call Girls

    Zirakpur Escort

    Zirakpur Escorts

    Zirakpur Call Girl

    Zirakpur Escort Service

    Zirakpur Independent escorts

    Zirakpur Escort Agency

    Zirakpur Escorts Service

    Escorts In Zirakpur

    Call Girl In Zirakpur

    Call Girls In Zirakpur


    ReplyDelete
  19. I enjoy going to clubs, foreign holiday destinations, beaches etc. I always try to experience something new. While I am with my clients, I have a desire to try new things. I do not believe in being intimate only, but it is the body that should be satisfied and the last love you are looking for.Zirakpur Escorts Service The kiss which you will feel that you are in a deeper world of excitement and imagination. You can also choose Zirakpur Call Girl Service or Zirakpur Escorts Service, but to realize the depth of the body of a woman your actual passion can be provided to you by independent Zirakpur escort services.

    Zirakpur Escorts Service not only makes your time a better experience but also add-on extra ordinary allurement. These girls can simply explore your cravings and smoothly take them out to the real world. Everyone knows what happens if a sexy, cheerful and completely devoted girl touches. The feelings that comes around if really awesome. As it already been experienced by many of us in past with girl friends. First feelings does take all the impressions of memorable moments.

    ZirakpurEscortsService,here is seductive escort once in a lifetime experience. I am very sexy with a gorgeous natural body. As I am very friendly and I love to have nice experience and unforgettable moments. I offer class and good service. Everything you realize change once you pretend yourself to some esteem moments of time with Me! Call now to book your date with ME and get ready for to experience of unbelievable heights. If you would like to make an appointment to see me


    Zirakpur Escorts, Fun With http://www.zirakpurescortservice.co.in Independent Models Call Girls

    Zirakpur Escort

    Zirakpur Escorts

    Zirakpur Call Girl

    Zirakpur Escort Service

    Zirakpur Independent escorts

    Zirakpur Escort Agency

    Zirakpur Escorts Service

    Escorts In Zirakpur

    Call Girl In Zirakpur

    Call Girls In Zirakpur


    ReplyDelete
  20. I enjoy going to clubs, foreign holiday destinations, beaches etc. I always try to experience something new. While I am with my clients, I have a desire to try new things. I do not believe in being intimate only, but it is the body that should be satisfied and the last love you are looking for.Panchkula Escorts Service The kiss which you will feel that you are in a deeper world of excitement and imagination. You can also choose Panchkula Call Girl Service or Panchkula Escort Service, but to realize the depth of the body of a woman your actual passion can be provided to you by independent Panchkula escort services.

    http://www.panchkulaescortservice.co.in

    Panchkula Escort Service not only makes your time a better experience but also add-on extra ordinary allurement. These girls can simply explore your cravings and smoothly take them out to the real world. Everyone knows what happens if a sexy, cheerful and completely devoted girl touches. The feelings that comes around if really awesome. As it already been experienced by many of us in past with girl friends. First feelings does take all the impressions of memorable moments.

    PanchkulaEscortsService,here is seductive escort once in a lifetime experience. I am very sexy with a gorgeous natural body. As I am very friendly and I love to have nice experience and unforgettable moments. I offer class and good service. Everything you realize change once you pretend yourself to some esteem moments of time with Me! Call now to book your date with ME and get ready for to experience of unbelievable heights. If you would like to make an appointment to see me


    Panchkula Escorts, Fun With http://www.panchkulaescortservice.co.in Independent Models Call Girls

    Panchkula Escort

    Panchkula Escorts

    Panchkula Call Girl

    Panchkula Escort Service

    Panchkula Independent escorts

    Panchkula Escort Agency

    Panchkula Escorts Service

    Escorts In Panchkula

    Call Girl In Panchkula

    Call Girls In Panchkula


    ReplyDelete
  21. Cheers and well wishes to all those visitors to my website. Let me introduce myself, my name is Sonal Mitra and I work as a Model. While there may be a number of other models working ithe city.
    Pune Escorts Service
    Pune Escorts Agency
    Pune Escort
    Escorts in Pune
    Independent Escorts in Pune
    Pune Call Girls
    Call Girls in Pune
    Pune Escorts
    Russian Escorts in Pune

    ReplyDelete
  22. When you're looking for Goa escorts it's usually not that simple to grasp that the Goa places to seek them out. There are hundreds and hundreds of escort websites which say from themselves they want the Goa escorts within the globe as advertisers in their own pages.
    Goa escorts

    ReplyDelete

Blog Widget by LinkWithin