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Focusing a revo camera system1/19/2024 ![]() ![]() Try to be specific with your questions if possible. r/linux4noobs - Newbie friendly place to learn Linux! All experience levels. r/datacenter - Talk of anything to do with the datacenter here We have an official, partnered Discord server which is great for all kinds of discussions and questions, invite link is clickable button at the top of the sidebar or right here.Keep piracy discussion off of this subreddit.Īll sales posts and online offers should be posted in /r/homelabsales.īefore posting please read the wiki, there is always content being added and it could save you a lot of time and hassle.įeel like helping out your fellow labber? Contribute to the wiki! It's a great help for everybody, just remember to keep the formatting please. Report any posts that you feel should be brought to our attention. We love detailed homelab builds, especially network diagrams! Post about your homelab, discussion of your homelab, questions you may have, or general discussion about transition your skill from the homelab to the workplace. Please see the full rules page for details on the rules, but the jist of it is: Labporn Diagrams Tutorials News Subreddit Rules Understanding which mode to use and how to choose and move an active AF Point will help you to be more selective and creative with your photography.New to Homelab? Start Here! Homelab Wiki HomelabSales Contrast Detection – which is in operation when shooting in Live View on a DSLR – is slower but also very accurate.Īutofocus is a highly sophisticated and useful tool. You might assume that Contrast Detection is the one your camera uses but actually it may have both types and, in fact, it’s Phase Detection that allows for fast autofocusing – something that’s absolutely needed when photographing a rapidly moving subject, such as a cyclist or a bird-in-flight. One is Contrast Detection and the other is Phase Detection. There are two main types of autofocusing systems. But if you select one, or a small group, of active AF Points you can use the camera’s control wheel or pad to move the reduced number of AF-Points around the frame, placing them on the area you want focus to be achieved. When all available AF points are active simultaneously, you can potentially achieve focus on the wrong place within the scene because the AF system just wants to choose a zone of high contrast. For accuracy, it’s often better to have just one or, perhaps a smaller group of AF Points active and able to achieve focus. ![]() You’ll see them as small shapes (often square) when you look through the viewfinder or they can be visible on the LCD screen when using Live View. These can be active or inactive and arranged in different groups, depending on how you want to configure them for a particular shooting scenario. To do that you need to restrict the number of AF points that are active.ĭepending on your camera’s make and model, you may have a small number of different autofocus points or a large number. For example, a person’s eyes in a portrait. It’s also vitally important that the AF-system locks onto the right part of the scene. Mirrorless cameras, or cameras with live view modes, have AF points across a much wider area, sometimes the entire area of the frame. They are clustered around the center of the frame. Our main image shows the autofocus points in a typical DSLR viewfinder.
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