Whoops, sorry - out of circulation for a bit.......Thanks to all for the help. However my original question still seems to stand.
For my 15 years in digital photography (prefaced by 28 years as an architectural (film/soup) photographer) I've been reluctant to have my work (my client's creations) presented on computer displays..... Monitors have been notoriously "grainy" (72 pixels per inch), low resolution, poor color fidelity, too dark/light...all over the ballpark if not out in the parking lot. Therefore no control of fidelity of the subject matter. Hence, in the past, my celebration of the "House of Epson" and a long list of wide format printers. My opinion: from the outset of digital inkjet printing, they wrote the book on high fidelity reproduction.
But now, for me, enter the Retina display, and super graphics cards (still called?
), and the "Air"..... the wonderful display of fine resolution, hue, saturation, contrast, and hopefully, also the subtleties of the art and artifacts that I'm paid to reproduce, and market. Also, the selection of the appropriate color space, and the source of the largest migraine - Color Management....to match the display of images on Mac Mini/Photoshop with the Air.
Therefore as I begin the migration of my images onto the Air, for marketing to galleries, artists, publishers - clients.....much of it in-person, my question: What is the suggested file size (pixel length & width, ppi, & bit depth) for optimum quality full screen B/W & color images... on iPad Air?
It seems that the answer starts with knowing the parameters/limits of the Retina screen....and of course the specs of the chosen vehicle...the image app. Then I can upload files that contain just that much data....read: optimum reproduction while avoiding harddrive overload.
If the case "all this stuff doesn't matter, just load an image into the 'Pad, It'll decide how much & how to use it" .....if that case is persuasive, I'll just have to conclude that I'm barking at the moon.
Thanks,
Qwerky