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Long exposures / write time worries


Just been trying long exposures for longer than Ive tried before- took a8 min exposure no probs, took on for 30 mins and eeeekk!

My camera seems to be busy or 'locked up' still 20 mins later -screen says `'busy please wait`' but I guess the battery will die eventually (in about anotherr 10 mins my guess

Is this normal???

canon 5Dmk2 with bulb and remote release

Last edited by Digital Finger, 12/Sep/15, 5:16 pm


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Glenn Haworth Profile
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Re: Long exposures / write time worries


Simon, have you got the long exposure noise reduction setting turned on as this will double the exposure time?



Last edited by Glenn Haworth, 12/Sep/15, 5:39 pm


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Re: Long exposures / write time worries


that I will check -good thinking.

have to say it is pretty noisy!

Didn't rrewlaise long exposures gave that awful level of noise!

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Re: Long exposures / write time worries


quote:

Digital Finger wrote:

that I will check -good thinking.

have to say it is pretty noisy!

Didn't rrewlaise long exposures gave that awful level of noise!




They dont if you do them properly emoticon

Seriously though it does sound like you have NR enabled in the camera

Last edited by IanBarber, 12/Sep/15, 7:32 pm


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12/Sep/15, 7:26 pm Link to this post Send Email to IanBarber   Send PM to IanBarber
 
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Re: Long exposures / write time worries


quote:

IanBarber


They dont if you do them properly emoticon



so what am I doing wrong- not enough exposure ?

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That's a part of what I seem, but not apart from what I am

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Re: Long exposures / write time worries


What was your base exposure (before adding the filter)

What type of filter did you use

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Re: Long exposures / write time worries


Simon, I often do long exp with my Canon 5D II and don't get the same problem, suggest you might check NR setting as Ian says
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Re: Long exposures / write time worries


thanks all yes NR was on (AUTO), is now OFF

base exposure was 13th at f11. I gave it 1881 secs (apparently) and the exposure LOOKED OK , a LITTLE low on the his to but not what Id normally consider noisworthy low...

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Histo

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That's a part of what I seem, but not apart from what I am

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Re: Long exposures / write time worries


What strength filter was it

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Re: Long exposures / write time worries


quote:

IanBarber wrote:

What strength filter was it



16

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