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Unanswered Questions

20
votes
0answers
378 views

When were white seamless backgrounds and platforms first used in studio lighting?

Amazon has just been granted a patent on the method for using: A white seamless background An elevated platform Rear-facing lights ...in order to make the entire background and platform disappear ...
10
votes
2answers
312 views

Recolour Black And White Photos

I have some black and white photos from my wedding and I want to add some colour to them. There is this paper from 2005 that allows you to recolour image by just painting stripes. ...
8
votes
4answers
445 views

Why do my Cybersyncs fire my Sunpak flashes with the test button, but not the shutter release?

During wedding receptions, my Sunpak 383s fire very inconsistently. Every time I press the test button with the Cybersyncs, they fire every time. When I press the shutter button, they don't fire. ...
7
votes
2answers
1k views

Any known issues when using Google Drive with Lightroom 5 (Catalog & photos) on two computer?

Does any of you have experience in using Google Drive with Lightroom 5? Like to use GDrive to be able to show/edit my photos on my Macbook and iMac. I know that I am only able to open Lightroom ...
5
votes
0answers
89 views

Can the method from the paper “High-Quality Computational Imaging Through Simple Lenses” compete with conventiona lenses?

This answer to another question of mine linked to an interesting article: High-Quality Computational Imaging Through Simple Lenses. It purposes the use of simple optics and computational photography ...
5
votes
0answers
175 views

At which lux level do the Nikon 1 cameras switch from PDAF to contrast-detection?

The Nikon 1 cameras are famous for being able to track focus with their on sensor PDAF. But the story goes that if light is low, it will switch to contrast-detect only and will not track focus as ...
5
votes
1answer
252 views

European/UK sources for quality book weight duo coated inkjet paper?

Im doing some research on inkjet book-weight duo papers, something that performs well for photo and graphics. I work at an art school in Scotland and am not finding much on the market that is below ...
4
votes
3answers
112 views

How do I rig up a color filter for my Sigma 8-16mm Ultrawide?

I am a bit confused... I'm not sure if the cokin system will work on my lens, as my lens doesn't have threads for a filter. I've found that placing a Z series cokin filter in front of the lens will ...
4
votes
1answer
194 views

Can I use a high-voltage flash with the Cactus v5 trigger that is mounted on the camera?

Can I use a high voltage flash (with a trigger voltage over 5V) on the Cactus v5 transceiver that is mounted on the hot-shoe of my Canon 550D? I know that I can mount the trigger on the camera and ...
4
votes
2answers
243 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 ...
3
votes
2answers
183 views

How to enhance a reflection in post?

I took this picture this weekend: When I took the picture I didn't notice the reflection, but now that I see it, I'd like to enhance it in post. Is there any way to do this? Technical notes. Shot ...
3
votes
2answers
134 views

Gigabit ethernet on Canon EOS 1DX

I am in the market for a new camera and was strongly considering the Canon EOS 1DX. In my investigations I have discovered two things regarding the ethernet connection. It is nowhere near the 1 ...
3
votes
1answer
153 views

What are the pros and cons of saving as DNG in camera and saving as proprietary RAW and convert in lightroom in post?

I'm using the DNG format in my workflow and are going to use a friends camera for my next photo shoot. It's a Pentax 645D and it can save the images as both DNG and PEF. I will convert my images to ...
3
votes
1answer
120 views

Canon Speedlites & Live View

I am having difficulty getting my Canon speedlites (600ex master and two 430ex slaves) to fire when using Live View on my 5D Mark III. I have no triggering problems except when using Live View. I was ...
3
votes
3answers
225 views

Phone camera (Samsung S4): is it possible to determine the distance to the object in focus on jpg picture?

I took a picture with Samsung S4 phone. Is it possible to determine the distance to the object on the picture? The object is in focus. I looked at the JPG picture properties but could not find ...

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