![]() ![]() This will apply the styles for iPad, iPhone, Android, Safari, and Firefox. To serve different stylesheets based upon screen and orientation declaration in the stylesheet link: In particular cases, we might also need to apply these styles based on the devices orientation apart from the device viewport width. Mobile devices can be operated with two orientations, Portrait and Landscape. We can detect the viewport width threshold, which we want the style rules to be applied to, with the min-width or max-width declaration within the Media Queries, as we have shown in our Responsive Design Series. With the introduction of CSS3 Media Queries, we are able to shift and apply CSS between different viewport or device screen sizes. Click here to see more articles from the same series. Cameras certainly do.This article is part of our "HTML5/CSS3 Tutorials series" - dedicated to help make you a better designer and/or developer. So far as I know, all current equipment, both cameras and displays, uses square pixels. Way back, there were computers with rectangular pixels in their displays. Depending on the exact ratios of each factor either could show relatively more or less relative resolution or they could be equal. If two sensors have equal numbers of pixels but one is larger than the other that one will pick up more millimetres' worth of resolution from the lens so its image will show relatively higher resolution.Īnd then there's the combination of sensors with different sizes and different numbers of pixels. But the resolution you observe depends also on the sensor: if two sensors are of equal size but one has more pixels that one will show the lens's resolution better so its image will show relatively higher resolution. A lens has a certain resolution in a certain set of conditions (aperture and subject distance are critical) so to that extent you can say its resolution is absolute. If it's a yes I have another much more technical and somewhat obscure question to those that are technically/engineering inclined regarding "absolute" versus "relative" resolution.Īgain, this depends on what you actually mean. This is why you can get more detail in a picture of a tall building if you fill the frame height when shooting portrait (as stated in another reply). By this definition resolution will be higher in portrait orientation because "height" is greater when the sensor is turned vertically. Today resolution is also measured by lines-per-picture-height, which can be useful when comparing resolution between different sensor formats. Lines/mm caused no confusion when film formats were mostly 35mm or medium format. With a regular array of pixels resolution diagonally can be different but horizontal and vertical are the same. By that definition resolution of a lens is the same in any direction - vertical, horizontal or vertical. Traditionally resolution has been measured in lines-per-millimetre (or inch), by which it means the maximum number of alternating black and white lines that can be distinguished before merging into grey. ![]() It depends on what you mean - or how you define resolution. I see you immediately realized where I am going with the "relative" resolution as far as packing pixels into the object, wow, great intuition. If they rectangular than the resolution could be different between the long and short axis of the rectangle. If some apps on your iPad rotate as expected and others dont rotate, the ones that dont were built that way by their developers. Check the app that youre using Remember that not all apps support rotation. ![]() The opposite is true if you are shooting something wide and not very tall like a sofa.Īre the pixels square or are they rectangular. Under Use Side Switch To, select the option that you want. If you just fitted the skyscraper in vertically in both a portrait and a landscape orientation, the actual skyscraper would have a higher resolution in the portrait orientation because there would be less wasted space down the sides. ![]() That would be true if you were photographing something tall and thin like a sky scraper. Yes, on iPhone a landscape orientation means you have more horizontal space than vertical, but on iPad it’s possible for your app to be running in landscape while in split-screen mode technically the whole screen still has a larger width than height, but the actual space allocated to our app is only a small slice of that width. I read somewhere the following line "highest resolution is obtained in landscape in preference to the portrait orientation". There will be the same number of pixels in both images. Is there a difference in resolution between Landscape and Portrait orientations? ![]()
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