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Long exposures are taken with shutter speeds generally longer or much longer than one second, in order to capture stationary objects in low light while blurring or obscuring moving elements.

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6
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4answers
212 views

Situations you might use USB remote mode?

I hooked up the 50D to my MacBook Pro the other day at home and found it great to see exactly how a photo is going to turn out on the big screen before taking it and was wondering when such a setup ...
14
votes
3answers
3k views

What are neutral density filters and how do I use them to create long exposures in daylight?

I've seen a few related posts on the site but nothing specifically on this point: I'd like to be able to take long exposure photos during daylight (like the examples in this Flickr group). I'm told ...
2
votes
1answer
494 views

What is the battery consumption of the Canon EOS 20D in bulb mode?

What is the estimated battery consumption when using bulb mode for an exposure about an hour long? I know the best thing is to test it out, but I'm not in position to do that right now. Camera is ...
7
votes
1answer
321 views

Why don't we get hot pixels when using live view?

Why don't we get hot pixels while using live view mode, but do get then on a long exposure? I read somewhere that they appear due to the sensor being activated for too much time, but then, live view ...
2
votes
3answers
507 views

Why is dark-frame subtraction on my Pentax camera shorter than the exposure time?

When my Pentax K-r applies long exposure noise reduction (dark-frame subtraction), the processing time required for this operation is less than the exposure time. For example, my camera may perform ...
23
votes
3answers
3k views

How do I meter for long exposures (10+ minutes)?

One of my longstanding interests is long exposure night photography. However, many of the situations where I am shooting require exposure lengths on the order of 10 minutes, which is far beyond what ...
9
votes
2answers
435 views

What filter should be used to lengthen exposure?

I would like to take long exposure shots in the day, but I just can't imagine how to do it because even fireworks (night shot) exposed for more than five seconds are too bright. I did some research, ...
10
votes
4answers
693 views

Where does this reflection come from in a long exposure shot?

Using a long (10 second) exposure I found I was getting an odd "reflection" in the picture, where the brightest object leaves a residue in the opposite part of the frame. You can see it here: I ...
15
votes
4answers
13k views

How can I avoid star trails without an expensive tracking mount?

I want to take pictures of the Milky Way or a lunar eclipse or earth glow on the moon, but I don't have an equatorial tracking mount, and don't want to spend that much money on one. How can I get ...
30
votes
6answers
1k views

What is the best technique for long-exposure photography in good light?

Can anyone offer any tips on achieving long exposures (with the intention of blurring water, clouds etc)?
6
votes
4answers
6k views

What does “long exposure” mean?

Very often, when people are talking about photography, they use the expression "long exposure". Here's a quote from a recent answer: A tripod and long exposure were required for this shot. Where ...
6
votes
3answers
568 views

Do I need a special filter to shoot candles without damaging my sensor?

The guy from the photo shop pointed out to me that I need special filters if I want to shoot directly to the sun with long exposures in order to not ruin the sensor. Is this the same when I shoot ...
0
votes
1answer
804 views

Long exposure mac / android apps?

I would love to start playing around with long exposure photography, more specifically light painting. I sadly don't have any camera except the iSight built into my Macbook Pro and my mid-range ...
0
votes
1answer
430 views

Tips for photographing long star trails [duplicate]

Possible Duplicate: Tips for landscape+stars photography? I need some tips and tricks for photographing long star trails. Some of the questions I am thinking about are: What aperture/ISO? ...
7
votes
1answer
747 views

How to turn off the LCD while taking long-exposure photos?

I'm using a Canon SX210 IS with CHDK. I know that capturing long exposition photos is a "battery draining" process, but it could be better. Why should the LCD's backlight be on while taking the photo? ...
5
votes
1answer
329 views

Explanation please: Pictures look inverted while making long exposure photograph

I have a 5 year old Point and Shoot (Nikon 4600). Though it has very limited capabilities , I have been learning lot of things related to photography from it. I was trying to make some long exposure ...