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Aperture is the opening in the diaphragm of a camera lens. For questions relating to Apple's photo management software, please use [apple-aperture] instead.

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1
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2answers
125 views

Why does my lens refocus when the f-stop is changed?

I have a prime Sigma f1.4 50mm lens on my Nikon D90 in P mode and focus mode on a set point of the field and notice that when I am using a tripod and change the f-stop that the camera changes the ...
4
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1answer
460 views

Why does changing the aperture cause lag in live view and in videos?

On my Canon 70D there's a considerable lag during the change of aperture when pressing the depth of field preview button. This lag also occurs during video recording, which causes the video to halt ...
0
votes
1answer
80 views

Technique to manually set aperture and focus for a low light scene during normally lit time of day?

I have a scenario that requires manually setting the aperture and focus on a lens attached to a machine vision camera on an outdoor scene (mirrorless camera with global shutter). I need to manually ...
1
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0answers
73 views

Scrum photo technique

I remember seeing some photos taken of children which had been staged by getting the kids to form a rugby scrum - all in a circle with arms around each others shoulder and leaning in to look at the ...
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0answers
35 views

Anyone know how to save a Photoshop file, naming it from metadata or exifdata?

Thanks for any feedback in advance. I have an action that retrieves an image from Aperture, manipulates it, saves it back to the Aperture library in tiff format, then performs a save for web with an ...
0
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0answers
69 views

Apertures required to enable autofocus on Rebel T6s/T6i in Live View?

Your article "What apertures are required to enable autofocus, including cross-type or high-precision focusing, on Canon DSLR cameras?" is most useful. Would the new Canon autofocus technology, in the ...
0
votes
0answers
55 views

How to remove oil from aperture blades?

If you go on ebay or other second hand places, you'll see a fair amount of lenses that have oil on the aperture (particularly on older lenses). I've done some reading and it looks like this oil is ...
0
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0answers
49 views

Mechanical Aperture Control Adapter for my Nikkor lenses

I have the following lenses --- AF-S NIKKOR 18-70 mm 1:3.5-4.5G ED AF-S MICRO NIKKOR 105 mm 1:2.8G And I use it for High Speed Videography mainly. Since these lenses have no mechanical aperture ...
0
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0answers
120 views

How does the Tamron 70-200mm F/2.8 without VR/IS compare to the Nikon 70-300mm F/4.5-5.6 VR?

I'm looking at two different lenses. The Tamron AF 70-200mm f/2.8 Di LD IF Macro Lens. ...
0
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0answers
35 views

Aperture smart album to find stacks containing photos?

Can I create a smart album that searches for a keyword in photos, then shows all the images in the stacks containing those photos? For instance, I have a bunch of stacks containing 2 photos each, one ...