 Michael Flynn |
File Size Hi All, Hope someone can assist, I am thinging of "going digital" however am struggling with all the tech, the cameras I have shortlisted are the Canon 400D,Nikon D80 or the sony Alpha, I would like to upload images to some stock libaries but some of them require file sizes of 50MB? My quetion is can any of the above cameras manufacture files of this size? or do I have to consider pro cameras with amazing prices as well as image quality
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W. |
Hi Michael, All 3 of those cams are good. But, as a photog with some experience you will know that the quality of your glass is paramount. That's where you'll probably spend most of your budget. So comparing lens prices is probably wiser than comparing camera body prices. 50MB? That sounds like those sites aim for files from medium and/or large format cameras. Have fun!
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John P. Sandstedt |
Oh W.S., shame. First time I disagree with you. Michael, when I shoot RAW with my Canon 30D and its 8.2 megapixel [MP] sensor, the file as uploaded into my computer is +/- 8.5 megabytes [MB.] Using Canon's Digital Photo Professional conversion program there is a tool called "Transfer to Photoshop." The resulting image, which appears in Photoshop Elements 4.0 or Photoshop CS2 [whichever I'm set for] can then be edited per Photoshop methods. But, the starting file is +/- 44.6 MB. Any reasonable size adjustment, even after cropping will allow this size to maintained. Since the cameras you mention [400D = Rebel Xti] shoot RAW and have 10+ MP sensors, conversion to Photoshop should give you at least a 45-50 MB file. Meeting the stock library requirements should NOT be an issue unless you try to e-mail them your images. And, you won't need a medium format camera [unles you can afford +/- $24,000 for a Hasselblad digital.
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W. |
Hi John, just checked an 8.1mp .MRW (Minolta RAW) file I got handy. It's 11.5MB out of camera! That's 1.5 times your RAW file size. So apparently that RAW file size varies greatly per cam manufacturer. This is 300dpi, my default. Oh, and Michael, for sending HUUUGE files up to 1GB for FREE you ought to check out http://www.pando.com/! Have fun!
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Pete H |
Michael, None of the cameras you cite will fulfill the stock agencies requirements. While it is true you can "interpolate" any image, the data required is just non existent. These 50Mb requirements are from the most stringent of agencies. Just for fun.... The camera is about $3,000 U.S and the digital back is about $13,000. There are many agencies who do not have this high expectation. All the best, Pete
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W. |
"The camera is about $3,000 U.S and the digital back is about $13,000" By the time you've got a workable system – with 2 or 3 lenses, filters, light, tripod, etc. – your tab will already have comfortably crossed the 50,000 bucks barrier!
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Pete H |
ummm..YEP. ;)
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Ken Stern |
Michael: looks like you have 2 options I) Use a "full Frame" 35mm film camera & have your slides scanned via a up-scale drum scanner at a pro-shop as I do for my A1/A2 size prints NOTE: SORRY - But I Just love to say this to you Bits & Bytes guys. OR II)Purchase the Canon/Nikon Digital & Use Interpolation Software - It's my understanding that this "stuff" will provide you with a file size of 50mb or at least real close to it. Some of the software I'm aware of: 1. Bicubic Interpolation - Apparently real basic All kidding aside - Enjoy your Digital & I this helps you out Ken Stern
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Michael Flynn |
Thanks to all who left comments - it sems to me that some say I can and some say I can't, now very confussed! looks like I'll have to do some more research on the matter, and or win the lottery?
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W. |
Michael, 1) it's not a great trick to inflate files from dSLR's (interpolate an 11.5MB RAW file upto 600dpi and you get a 2GB file!). But it doesn't make sense to even try, because you will never get even one bit more REAL image data than the original file contains. The image won't get ANY better. Only more unwieldy. 2) sites that want 50MB files, and bigger, obviously aim for medium and large format photographers. PRO'S! Who will present matching photo/image quality.
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Ken Stern |
Michael: My reference to the use of Interpolation Software was taken the from the December 2005 issue of EOS Magazine - A publication out GB that I have been loyal subscriber of for the past 5 to 6 years. I would be more then happy to e-mail a PDF copy of the 4 page article which includes reviews of the specific software - If you wish you can contact me at yrbstern@yahoo.com Ken Stern
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Pete H |
The question remains incomplete. What resolution? 50Mb is a meaningless number w/o more specifics.
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Michael Flynn |
Chaps, You guys are realy losing me here. I did requested some advise and now feel swamped with what I guess is called information overload. W.S: Your comments seem about right to me, I still want to enjoy my Photography without getting immersed with all the technical jargon, and attempting to compete with some of the pros. As for the camera? - Still not sure, but the canon looks like getting the nod - recently read the EOS 30D can be a good buy. Mike
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