Instaed of buying a dslr with huge mp size which is ultra expensive, just buy a dslr with normal mp and use software to make your images any size you wish. I would remind you that any very large prints or posters are not meant to be viewed at a close distance..
The above is a free download with 10 posters before you have to buy. and it makes posters up to 100feet by 100feet. you print them using you own inkjet printer. it comes out in sections and you simply put it together. I made one of my cat that was 4x6 feet. looked very good...
For instance Qimage, which has good capabilities and upsampling and printing.http://www.ddisoftware.com/qimage.
If you were planning to sell poster-size prints of landscapes, competing with people still using medium-format or large-format film, even people doing triptyches or other panoramic work yes, it'd be harder to take that route. But if you're after creating prints for personal use and not having to compete against people using Sinars and Hasselblads and Mamiyas and what-not....
I've got 16"x20" prints produced from an aging (2003-era tech, IIRC) 4.9MP DSLR. Visitors seem to like 'em. Newer cameras should be significantly better..
Http://links.pictures.aol.com/...1G3ughsWjMephXxxclqrJmJQpev4xQp5Fd3Ig=_f.jpgis an upsampled 6000x4500 version of.
Which is the 2560x1920 original image (well, original after RAW conversion incl. some mild tweaking in Olympus Studio)..
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It's SFW, but those links above -are- fairly heavy downloads, obviously.).
The upsampled version looks awful at 100%, but that would correspond to a fairly ridiculous print size. At 16"x20", it printed nicely... and that was from a handheld shot from a guy that rarely shoots landscapes. With the present crop of recent DSLRs usually in the ballpark of 8-12MP and not 4.9MP and with better practices such as using a tripod for a sharper original and spending more than 15 seconds setting parameters in Qimage, one should be able to do considerably better...
I have a Pentax K100 (6MP) which I have no problem blowing photos up to a 16X20 with a high level detail...
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If you really want professional quality gallery sized prints, you would need to start with 4x5 film, then have the prints scanned and digitized with a professional ($100k) scanner, and then perform the postprocessing prior to printing on photo paper. The next level of quality is substantially lower and that can be achieved with a DSLR and standard inkjet printing. Since you are posting in the beginners forum, you might want to consider the Canon G9. For a point and shoot, this camera does remarkable well for landscape photography. The image quality is close to that of a consumer level DSLR...
And Get the Canon G9 camera.
Bill,Jr'I kind of like the Earth, it's where I keep all my Stuff.'Website; http://www.pbase.com/wboth125 Lake Wylie, SC..
I made one of my cat that was 4x6 feet..
Wow... that's some cat Best wishesMike..
Many labs ask you to NOT up-sample the image. You submit for print-ready file, and they use THEIR S/W specific to THEIR printer to make any changes..
I once took a crop of a D70 JPEG image and printed it at 30x40 inches..
Despite the fact that the native resolution was only 78 ppi, in the final image you could clearly see the tiny perforations in the football players jersey.Warm regards,DOF..