Photography Weekly Newsletter - Wednesday, May 27, 2015

Top new questions this week: Is it safe to zoom while taking a photo for the effect? I have clicked some photos by using the trick of zooming in and zooming out with the lens while the shutter is open. All the photos came pretty cool and crazy. I am very happy with the effect, but I ... [dslr] [zoom] [equipment-damage] [trick-photography]   asked by sabyasachi kar 9 votes answered by Matt Grum 19 votes How can I compose shots with tall buildings without boring sky dominating the image? How to compose/frame shots with tall buildings without "just" sky? For example, Space Needle, Eiffel Tower, Hoover Building ... Most of my attempts result in lots of pixels of boring sky. Here is ... [composition] [sky] [architecture] [framing]   asked by BiGYaN 6 votes answered by user681768917 1 vote How do you set up a photo of a glowing tent in the dark? Sometimes, in pictures of camping published in outdoor magazines, I'll see a night shot where the tent is all lit up like a big yellow bulb. How do they get that shot? Long exposure, probably, but ... [lighting] [night] [outdoor]   asked by Victor 6 votes answered by Max 4 votes Why do my prints darken too quickly in the developer tray? I'm playing with a pinhole camera recently.¹ It's the first time I'm actually developing photos myself. On my developer bottle it says I should use 1 unit of it and mix it with 9 units of water. ... [film] [developing] [contrast]   asked by kamituel 5 votes answered by Blrfl 1 vote What's the shutter's relationship with the sensor? Something I don't understand about compact digital cameras is how their shutters work. On the screen at the back of the camera, a preview is constantly shown. I assume this preview is made by light ... [aperture] [sensor] [shutter] [compact-cameras]   asked by EmmaV 4 votes answered by thomasrutter 2 votes Color correction based on known samples (that are not grey) In Lightroom and other such programs, color temperature for lighting is easy with an eyedropper tool if you have a true neutral in the photo, such as a grey card. For a natural object, it gets you ... [color-management] [white-balance] [color-correction]   asked by JDługosz 3 votes answered by A K Photo 2 votes What are the RGB primaries in a camera? More generally, what is the nature of the gamut? Primaries as peak sensitivity don't behave the same as primaries for mixing output. I suppose this is necessary to know for RAW importing and would be ... [sensor] [color-spaces] [adobe-rgb] [rgb]   asked by JDługosz 3 votes answered by agf1997 3 votes Greatest hits from previous weeks: Is camera flash actually harmful to infants or newborns? I just got a new off-camera flash, and the instruction manual says: Never fire the flash unit closer than 1 meter from infants. This was a little startling to me, since one of the main reasons I ... [flash] [off-camera-flash] [baby-photos] [safety] [eye-damage]   asked by anon 34 votes answered by mattdm 26 votes What is the difference between AI Focus and AI Servo autofocus modes? Recently I bought a Canon 60D and I am uncertain about when and how to use/activate the AI Focus and AI Servo functions. I understand the One Shot autofocus function for still subjects. You press ... [canon] [autofocus] [focus]   asked by Rick O 7 votes answered by Matt Grum 7 votes Can you answer this? What is the practical purpose of "use raw as original" in Photos for OS X? Within OS X Photos app, when I shoot jpeg/raw and upload to Photos, I get an image representing both files. By default I am looking at the jpeg. Or I can choose a command "Use Raw as Original". I ... [raw] [photo-editing] [jpeg] [file-format] [os-x]   asked by pitosalas 1 vote

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