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Long exposure using ND filter (16 stop)
Jan 28, 2023 18:58:06 #
Trying to figure out why I am getting this red banding, which gets worse with smaller aperature. These two pictures were taken at about 8:30 am pst, 4 min exposure, ISO 100, f8 & f16 respectively. Seems that with the smaller aperture, the red banding got worse. Taken with Nikon D7100, 16-80 mm lens. Using lens hood, out of the sun on my veranda. Trying to do a long exposure of a SpaceX launch tomorrow (Sunday 29th) at 8:45am
Jan 28, 2023 19:07:23 #
Haenzel
Loc: South Holland, The Netherlands
Next time shooting long exposures, put a cover on your eye piece....
Jan 28, 2023 19:12:26 #
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Jan 28, 2023 20:11:12 #
Jan 28, 2023 22:31:38 #
I’m not with you. What did you do to solve the problem? Did you install a cover on your eyepiece? If so how did that correct the problem.
Thanks
Thanks
Jan 28, 2023 23:05:27 #
Light was entering the eyepiece and on to the sensor (mirror up for 4 minutes) So, I covered the eyepiece with cardboard and towel (taped on). Nikon makes a gizmo for covering the eyepiece - just couldn't find mine.
Hope this helps..
Michael
Hope this helps..
Michael
Jan 28, 2023 23:27:17 #
MichaelStacy wrote:
Light was entering the eyepiece and on to the sensor (mirror up for 4 minutes) So, I covered the eyepiece with cardboard and towel (taped on). Nikon makes a gizmo for covering the eyepiece - just couldn't find mine.
Hope this helps..
Michael
Hope this helps..
Michael
I had a rubber eyepiece on mine and made a 'gizmo' from half a cigarette packet with a slot cut in it so it would just drop over. Worked well.
Jan 28, 2023 23:43:55 #
Jan 29, 2023 02:35:44 #
Haenzel
Loc: South Holland, The Netherlands
MichaelStacy wrote:
That did the trick, thanks again
No problem...I always have to remind my son when doing astro photgraphy in a not so dark environment..
Jan 29, 2023 02:41:14 #
Haenzel
Loc: South Holland, The Netherlands
MichaelStacy wrote:
Light was entering the eyepiece and on to the sensor (mirror up for 4 minutes) So, I covered the eyepiece with cardboard and towel (taped on). Nikon makes a gizmo for covering the eyepiece - just couldn't find mine.
Hope this helps..
Michael
Hope this helps..
Michael
In the old days (At least with a Ricoh or Pentax) you could find a rubber eye piece cover integrated in the camera strap...
Make sure to post the result of the launch. You've got a very nice view!!!
Jan 29, 2023 11:49:29 #
Iron Sight wrote:
I’m not with you. What did you do to solve the problem? Did you install a cover on your eyepiece? If so how did that correct the problem.
Thanks
Thanks
Manufacturers usually include a small, rubber piece that fits over the view finder to stop the light. Most buyers have no idea what it is and never use it. Canon's is very small, rubber, and fits snuggly on the rear of the viewfinder.
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Jan 29, 2023 13:26:20 #
bbrown5154
Loc: Baltimore, MD
Wow, so all you did was use the eye pice cover? I just never thought I'd see that big a difference doing that. I have just started fooling around with night photos and never really thought it was that big of a deal. But wow. Thanks.
Jan 29, 2023 13:31:53 #
tcthome
Loc: NJ
Haenzel wrote:
Next time shooting long exposures, put a cover on your eye piece....
My Nikon D810 has a viewfinder shutter that can be closed. Maybe the 7100 does too. Full disclosure= I didn't know it had one for about a year after purchasing the camera. That's why they call me speedy!
Jan 29, 2023 14:03:56 #
Jan 29, 2023 14:32:57 #
tcthome wrote:
My Nikon D810 has a viewfinder shutter that can be closed. Maybe the 7100 does too. Full disclosure= I didn't know it had one for about a year after purchasing the camera. That's why they call me speedy!
Viewfinder shutters are usually found on upper level models, if at all. Canon included one on the 1 Dx. The feature does make a difference. Could be overly (?) expensive to build in. Industry must not like to promote little things that make big differences, like a good, safe method to carry a rig.
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