Stock Agency pixel requirements
We have a portfolio of slides at a stock house. I contacted them today and asked for their requirements for submitting digital rather than slides.
35MM RGB file size 50-55MB
File resolution 300 dpi
Pixex dimension 3400 X 5100
Print size @ 300 dpi 11 x 17
Their instructions went on to explain scanning details. You will be able to tell by this question that I am not a digital whiz. Does Pixel dimension of 3400 x 5100 mean that you would have to have a digital camera capable of 3400 x 5100 for a total of 17 plus megapixels to submit to these folks.
If I am incorrect, could someone please advise how to ask if the capabilities of a D1X shooting raw would be able to deliver the quality they need.
#1. "RE: Stock Agency pixel requirements" | In response to Reply # 0Jim Smith Registered since 15th Mar 2002Tue 30-Apr-02 01:05 AM
The quality of the output from raw on D1 will exceed the requirements for resolution in magazines. However, if the stock photos are for some higher resolution need (large blow-up trade show pics, higher end books, etc.) the resolution would likely produce a picture that is not very sharp. But resolution and sharpness are not the same as pixel size. In PhotoShop you can blow up a D1 image to any "pixel" size you like. Film shot without a tripod may show some camera shake and not be sharp because of this reason. So film will not necessarily be "sharper" than digital. A slower speed 35mm color film shot on a tripod will tend to be as "sharp" as approximately a 20 MB digital image from a digital camera back. In order for film to be "sharper" you would have to move to medium format film.
The bottom line is you would likely have to send them a 50MB D1 image and ask them if the quality meets their needs. It is entirely possible that they will say yes.
To some extent, the only way you will know is to ask them.
#2. "RE: Stock Agency pixel requirements" | In response to Reply # 1egodoy Basic MemberTue 30-Apr-02 10:48 AM
It’s always a pleasure to read your posting in this incredible helpful forum. I usually shoot slides and scan my images with a Nikon CoolScan 8000-ED. I ussualy scan to a 1000 dpi resolution. The setting are RGB with fine scan. This scanned images are about 400k in a JPG format. Can you explain how do you get a 50mb file on a 300 dpi resolution? May be their some technical details that I’m not aware of. Is RAW format from digital cameras a better image format?
Nikonian from Maryland!
#3. "RE: Stock Agency pixel requirements" | In response to Reply # 2markalan Registered since 28th Feb 2002Tue 30-Apr-02 01:40 PM
Next time instead of saving as a .jpg try saving as a .tif and do not select compression. You'll see the file size is very different. JPG is a lossy compression - it loses information - creates artifacts etc! tif (tagged image format) is not a lossy compression, even when using the compression. A stock agency would NOT accept a jpg
Also if you open a jpg edit it and save it again and again it will keep losing more information as it recompresses each time. Of course they are greatly smaller files! A 5100 x 3400 pixel RGB file is about 49.6 MB when uncompressed! As previously mentioned this would be 11x17 at 300dpi.
A 35mm neg (about 0.9 x 1.4 inches)scanned at 4000 dpi would qualify being as this would yield 3600 x 5600 pixels prior to cropping!
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