The Perfect Sunrise

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Focus is the mechanism of converging light from a point light source onto an imaging plane by a lens.

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64 views

Why does the focus light come on in manual focus mode?

When I'm in the manual focus mode, I find that the focus light (the red blinking light) sometimes still comes on before it takes a photo. Why is this? I thought the purpose of the light is to ...
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2answers
62 views

Wide aperture in low-light results in muddy image on Powershot G16?

I have a Powershot G16 that I'd like to use as my standard camera for its light weight. It takes amazing photos in the day, but I'm having some problems with handheld at night. I'm still a photography ...
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2answers
76 views

Nikon d7000 will not auto focus

Nikon D7000: When I press down on the shutter release my camera does not auto focus with any lens. I have checked and it's NOT on manual I have tried resetting my camera I want to shoot nightlife so ...
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1answer
62 views

Can I remove the tiny amount of wiggle in the focus ring of my brand new lens?

I just purchased a Samyang 24mm T1.5 lens and the focus ring is not 100% solid and smooth, there is a tiny amount of give in the vertical direction (perpindicular to the horizontal direction the ring ...
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1answer
86 views

Sigma 28-105 3.8 5.6 Lens not sharp with Nikon D7000

I find that my Nikon D7000 is not producing sharp images with a Sigma 28-105mm f/3.8-5.6 lens. It is very soft from f/3.8 - f/11, but from f/13- f/16 it is sharp. But I cannot shoot with these ...
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57 views

How to get accurate focus at night? [duplicate]

I've tried focusing shots at night, but never get a perfect click. Are there any tips that might help?
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0answers
31 views

Focus point plugin for Lightroom [duplicate]

I would like to see where the focus is in my pictures (in post). My understanding is that LR does not provide such functionality. Is there a plugin available?
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2answers
52 views

What (and why) are the differences for AF between viewfinder and LiveView [duplicate]

I find that viewfinder never beeps to confirm focus. It also is much quicker (~0.5s) but sometimes jumps around constantly and never settles to a focus point. LiveView probably gets less light for ...
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37 views

combine video frames for clarity [duplicate]

Possible Duplicate: CSI image resolution enhance: How real is it? Apologies if this isn't the best SE for this search. What might be good software, esp. opensource/freeware, to combine ...
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3answers
480 views

Canon 70-200mm F4 L USM IS Focus Issues Photo All Soft?

Focus Issues Bought myself a used Canon 70-200mm F4 L USM IS Lens but as yet I've not achieved a single Sharp image list of various settings tried attempts so far and still no joy very frustrating. I ...
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1answer
87 views

Why do my photos appear more in focus when I use a long exposure?

Why does an unfocused lens still give a focused view with a longer exposure? For example, I took an out-of-focus photo with a ¹⁄₁₀th second exposure (at f/7.1), but when I change to 10 seconds (at ...