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How to shoot long exposure photos during the daytime.
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Oct 10, 2018 07:04:40   #
GKR
 
Hello, my name is Gary. I'm having a hard time trying to figure out how to shoot long exposure shots during the day. I have google it and watched 4-5 different video on how to do it. But, all I get are under exposure. I shoot with a canon 6d, I'm in the bulb mode, f22, iso 100 and I'm using a 10 stop sd filter. Tell me if I'm missing anything. Now, I have been shooting boats on the river, with no shade around me at all, should that make a difference. Can long exposure shot be taken in bright day light with only a 10 stop sd filter, I don't know? Is there anyone out there that can help me.

Thank you

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Oct 10, 2018 07:18:36   #
Linary
 
GKR wrote:
Hello, my name is Gary. I'm having a hard time trying to figure out how to shoot long exposure shots during the day. I have google it and watched 4-5 different video on how to do it. But, all I get are under exposure. I shoot with a canon 6d, I'm in the bulb mode, f22, iso 100 and I'm using a 10 stop sd filter. Tell me if I'm missing anything. Now, I have been shooting boats on the river, with no shade around me at all, should that make a difference. Can long exposure shot be taken in bright day light with only a 10 stop sd filter, I don't know? Is there anyone out there that can help me.

Thank you
Hello, my name is Gary. I'm having a hard time try... (show quote)


What is the shutter speed you are using or how many seconds are you allowing the shutter to remain open?

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Oct 10, 2018 07:20:22   #
AndyT
 
Gary my 10 stop ND filter came with a conversion chart. You take your regular exposure, and look for the corresponding shutter speed on the chart. Could easily be a couple minutes of exposure.

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Oct 10, 2018 07:24:06   #
AndyT
 
AndyT wrote:
Gary my 10 stop ND filter came with a conversion chart. You take your regular exposure, and look for the corresponding shutter speed on the chart. Could easily be a couple minutes of exposure.
.
This is a two minute exposure.



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Oct 10, 2018 07:25:50   #
BebuLamar (a regular here)
 
With that you would need at least an exposure time of 20 seconds in the brightest condition.

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Oct 10, 2018 07:29:32   #
GKR
 
I have tried every shutter speed on my camera. I have even tried to get slow exposure using manual mode. I know that I'm doing something very wrong, but I just haven't figured it out yet.

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Oct 10, 2018 07:36:54   #
AndyT
 
GKR wrote:
I have tried every shutter speed on my camera. I have even tried to get slow exposure using manual mode. I know that I'm doing something very wrong, but I just haven't figured it out yet.


Gary I just went back and checked. The lighthouse picture above was taken at iso 100, f.22, for exactly two minutes. I remember it was a bright overcast day.

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Oct 10, 2018 07:38:43   #
AndyT
 
AndyT wrote:
Gary I just went back and checked. The lighthouse picture above was taken at iso 100, f.22, for exactly two minutes. I remember it was a bright overcast day.


And what looks like mist was choppy water and waves.

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Oct 10, 2018 07:41:06   #
Longshadow (a regular here)
 
With a ND 10 the dial shutter speeds on your camera are way too short.

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Oct 10, 2018 07:41:09   #
BebuLamar (a regular here)
 
I figure 20 seconds exposure in full sun, in cloudy 2 minutes is about right and I think the OP camera doesn't have 2 minutes setting so B is needed.

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Oct 10, 2018 07:43:55   #
GKR
 
I'm so sorry that my main email was wrong. I meant to say that I get over exposure shots, not under exposure shots.

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Oct 10, 2018 07:45:06   #
JohnSwanda (a regular here)
 
If you are underexposed, then you just need more exposure. Don't forget that one more stop is doubling the exposure. So if one minute isn't enough you go to 2 minutes, 4 minutes, 8 minutes, etc. If it gets to be too long, you could open the aperture some.

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Oct 10, 2018 07:47:10   #
Longshadow (a regular here)
 
GKR wrote:
I'm so sorry that my main email was wrong. I meant to say that I get over exposure shots, not under exposure shots.

How long are your exposures?

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Oct 10, 2018 07:55:40   #
f8lee (a regular here)
 
GKR wrote:
I have tried every shutter speed on my camera. I have even tried to get slow exposure using manual mode. I know that I'm doing something very wrong, but I just haven't figured it out yet.


Gary, the shutter speeds that you set on the camera (virtually any camera) don't go long enough to accomplish what you want to do. Note Andy's image with a 2 minute exposure.

The answer is to set the shutter to B (for Bulb) - this is where the shutter remains open for a s long as you keep the shutter release depressed - which in turn means you would use a remote release while your camera sits on the tripod.

As for what exposure time to actually use, a good first attempt would be to meter the scene without the ND (by the way, that's ND for Neutral Density, not SD) filter and simply calculate 10 stops more exposure. Each stop represents a doubling of time, so if the meter suggests (without the ND filter) a speed of, say, 1/15th second then by adding the 10 stop filter the math would imply a speed of 64 seconds (just over a minute). See if that helps.

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Oct 10, 2018 07:59:40   #
CHG_CANON (a regular here)
 
The maximum shutter duration for the 6D is a 30-second duration. If you want longer, you use bulb and manually open and close the shutter based on your own timer and decisions. Whether you are getting over or under exposed images, simply adjust the shutter duration, making it longer or shorter based on the adjustment needed. The assumption is that you're in manual mode and setting the aperture, ISO and shutter completely under your control and when you need more than 30-seconds, changing to bulb.

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