Nex 7 or 5n for printing at landscape A2 (with Canon 10-22 lens)

Started Sep 6, 2012 | Discussions thread
Astound
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Re: rent Nikon D800E with 28/1.8 G lens. RawTherapee post-process.
In reply to RussellInCincinnati, Sep 8, 2012

My first guess is that no ordinary viewer will notice the difference even at real large print sizes between 16 megapixels APS-C and 36 megpixels "full frame". Because a perfect 16 megapixels of information is a lot of information for any one human being to absorb at a glance. Would enjoy being proven on that hunch.

Sorry, but that's not the case. Printers require a certain amount of pixel information to render a photographic image at a certain standard. 16mp of information renders... well, 16mp worth of information. It will allow an image to be reproduced smoothly at a certain size. Any larger and the image will begin to lose clarity. For many printers, the standard is around 300dpi/pp at the output size. As the image output size gets larger, the required dpi/ppi has to remain at around 300. If there is not enough information there (or megapixels) then the output dpi will go down and the imagr will begin to visibly lose quality.

My second and most important guess is that playing with the optimum combination of noise reduction and sharpening settings in Lightroom 4.1, or learning about RawTherapee and trying out some Amaze deconvolution sharpening settings, is significantly more likely to improve the appearance of your largest prints than switching sensors.

Those techniques have no bearing on maintaining the output quality of an image which does not have enough resolution. If a printer requires 300dpi to reproduce a photorealistic image at a certain size and you supply a 150dpi image, then it is unlikely to look very good. No amount of sharpening is going to help. In fact, it may make it look worse.

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