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Long Exposures (ND 10 Filter) on D7000

Otsego Photog

Otsego, US
61 posts

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Otsego Photog Gold Member Donor Ribbon awarded for his generous support to the Fundraising Campaign 2014 Nikonian since 03rd Jul 2012
Wed 22-Aug-12 06:21 PM

Does anyone know if there is a problem, if the images sensor, on the D7000 is exposed for time periods of 2.5 minutes to 5.0 minutes for some long exposures, when using a ND 10 Stop filter? I am concerned about temperature rise of the senor itsself, when gathering in information for these long exposure times.
Thanks,
Jack

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RockyIII

Raleigh, US
3271 posts

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#1. "RE: Long Exposures (ND 10 Filter) on D7000" | In response to Reply # 0

RockyIII Gold Member Donor Ribbon awarded for his very generous support to the Fundraising Campaign 2015 Nikonian since 27th May 2006
Wed 22-Aug-12 05:13 PM

I don't know if it will answer your question, but I found the following discussion about using the D7000 for long exposures in astrophography:

http://theguvnah.blogspot.com/2010/12/nikon-d7000-for-astrophotography.html

Rocky

Otsego Photog

Otsego, US
61 posts

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#2. "RE: Long Exposures (ND 10 Filter) on D7000" | In response to Reply # 1

Otsego Photog Gold Member Donor Ribbon awarded for his generous support to the Fundraising Campaign 2014 Nikonian since 03rd Jul 2012
Wed 22-Aug-12 06:51 PM

Rocky,
Thanks for the quick reply. That is really heady stuff, but I think it answers my question. It sounds like there is not a problem with temperature buildup with the D7000 and long exposures. I'll see if anyone has further info in the next couple days. Again thanks for the info.
Jack

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JPJ

Toronto, CA
1327 posts

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#3. "RE: Long Exposures (ND 10 Filter) on D7000" | In response to Reply # 0

JPJ Silver Member Nikonian since 19th Aug 2009
Wed 22-Aug-12 11:37 PM

I have taken a few long exposures with Lee's Big Stopper (10 ND) and have had no issues.

Jason

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RockyIII

Raleigh, US
3271 posts

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#4. "RE: Long Exposures (ND 10 Filter) on D7000" | In response to Reply # 3

RockyIII Gold Member Donor Ribbon awarded for his very generous support to the Fundraising Campaign 2015 Nikonian since 27th May 2006
Thu 23-Aug-12 12:45 AM

Just curious, what kind of photos are you guys taking that require such a long exposure and 10 ND filter?

Rocky

Isaac Saunders

Orrtanna, US
22 posts

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#5. "RE: Long Exposures (ND 10 Filter) on D7000" | In response to Reply # 0

Isaac Saunders Registered since 21st Aug 2012
Thu 23-Aug-12 02:56 AM

I've gone 4-5 minutes many times on mine and it still performs flawlessly. I've never done it with a ND filter. All mine were done at dusk/night while light painting.

Isaac Saunders

Orrtanna, US
22 posts

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#6. "RE: Long Exposures (ND 10 Filter) on D7000" | In response to Reply # 4

Isaac Saunders Registered since 21st Aug 2012
Thu 23-Aug-12 02:58 AM

I've done roughly 4-5 minute exposures doing light painting. All at Anteitam National Battlefield. It was with a low light photography class. Lots of fun and a great experience!

luckyphoto

Port Charlotte, US
1051 posts

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#7. "RE: Long Exposures (ND 10 Filter) on D7000" | In response to Reply # 6

luckyphoto Silver Member Nikonian since 27th Dec 2010
Thu 23-Aug-12 09:43 AM

5-minute exposures shouldn't cause any issues, but make sure to turn on the long exposure noise reduction feature of the D7000. With long exposure NR turned on, the D7000 takes a second "blank" long exposure to get a mask of the hot pixels and then subtracts that mask from the original exposures to eliminate hot pixels. Even then you may still have a few hot pixels to deal with.

Larry

"Red is gray and yellow white, but we decide which is right
....and which is an illusion"

Moody Blues - Nights in White Satin

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Otsego Photog

Otsego, US
61 posts

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#8. "RE: Long Exposures (ND 10 Filter) on D7000" | In response to Reply # 4

Otsego Photog Gold Member Donor Ribbon awarded for his generous support to the Fundraising Campaign 2014 Nikonian since 03rd Jul 2012
Fri 24-Aug-12 04:55 PM

Rocky,
I first started shooting landscapes images with waterfalls, streams and lakes with the 10 stop ND and the polarizer under the ND. In some readings, I understood that the exposues times would be upto 1000 times the normal exposure without the ND filter. In my cal. that equated to 2min & 30 sec give or take. From my first shoot with the ND the results were what I was looking for with the water surfaces being very very smooth. Did some reading after that shoot and came across some ND Filter Charts that suggested that for a 1/60 exposure I only need a exposure time if 15sec. Now I am confussed, so tomorrow morning I am out again for some test shoot at the numbers that are on the ND Chart to see what the results will be.

The procedure for using the ND fitler is a bit diffcult (firstexposure, set polizer to desired strength, then change to manual mode and do not move anything and add the ND, using Bulb and do not move anything, take the picture) but it seems to work.

One thing that I was thinking about the polizer does add a couple stops does it not? Therefore, I may be really shooting with a 11 - 12 stop filtering, right?

If you have any help please, I am still learning a lot with each shoot and want to get better.

Jack

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JPJ

Toronto, CA
1327 posts

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#9. "RE: Long Exposures (ND 10 Filter) on D7000" | In response to Reply # 4

JPJ Silver Member Nikonian since 19th Aug 2009
Fri 24-Aug-12 06:44 PM

I have taken almost exclusively landscape photos invoking water (falls or shores) or sky (clouds).

Jason

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G