Ugly Hedgehog - Photography Forum
Home Active Topics Newest Pictures Search Login Register
Photo Analysis
What happened here?
Page <<first <prev 7 of 7
Jun 26, 2016 10:30:36   #
346pak Loc: Texas
 
Interesting chain of a question and potential answers. I have (at least I thought) had similar problems. I shoot both JPG and RAW so I went back in several folders ad compared exposures on many RAW and JPG and found no anomalies or exposure differences between them.

Reply
Jul 20, 2016 17:09:37   #
kavner58 Loc: Portland, Oregon
 
Rongnongno wrote:
There is only one possible explanation I can think of:

The sensor had an electrical hiccup. (Did not have the time to discharge)

That is a wild guess, at best. I am as puzzled as everyone else.


"sensor had an electrical hiccup" ... being an electrical engineer in my profession, and someone who designed image sensors - hiccup is a new buzzword for me :-)
Since the time difference between these two shots was 1/6 second, it is enough to reset, restart the sensor photodiodes multiple times. Maybe look at something else.

-AK

Reply
Jul 22, 2016 11:14:59   #
rpavich Loc: West Virginia
 
chase4 wrote:
Thanks for taking the time to look and comment on this photographic weirdness event. I have always enjoyed your posts and helpful comments and the photos of your pugs, food and others. I have great respect for you film guys as my dad started me out in the darkroom; developing, printing (w/contact printer) and enlarging back in the 1950's. Digital works great for me since I am just an old, lazy snapshooting memory keeper and have no asperations of creating a technological or artistically perfect photo. Cheers, chase
Thanks for taking the time to look and comment on ... (show quote)


I just stumbled back onto this thread and had to stop and say thanks for the kind words except one correction. Though I am old I'm not a veteran film shooter. I only started photography about 6 or so years ago and film about a year or two ago.

But having said that, thanks very much.

bob

Reply
 
 
Aug 2, 2016 09:27:10   #
SonyA580 Loc: FL in the winter & MN in the summer
 
My guess would be the sun went behind a cloud on the second one.

Reply
Aug 8, 2016 20:52:51   #
via the lens Loc: Northern California, near Yosemite NP
 
chase4 wrote:
Yesterday I took two sequential shots,JPEGs, of a surf shack being rebuilt after last winter's storms and the EXIF data shows the exact same information for both: Nikon D610, 28-300 lens @ 55mm, aperature priority f/8, 1/3000 sec, ISO 800, EV=0 with auto WB. As one can see, the two exposures look quite different, the #1 being much lighter than the #2. The histograms do show a difference also where #1 is more ETTR than the #2. My question is: does anyone have any ideas what may have caused this? Thanks in advance for any help with this.
chase
Yesterday I took two sequential shots,JPEGs, of a ... (show quote)


A cloud passing over.

Reply
Mar 26, 2023 17:23:34   #
bendanjoe Loc: Cardston, Alberta Canada
 
I've had this issue with a couple of my lenses, and what it was was the aperture was opening too slowly so the exposure was lower than the previous shot.

Reply
Mar 26, 2023 19:48:10   #
JohnSwanda Loc: San Francisco
 
bendanjoe wrote:
I've had this issue with a couple of my lenses, and what it was was the aperture was opening too slowly so the exposure was lower than the previous shot.


Why drag up this thread from 2016?

Reply
 
 
Mar 29, 2023 10:48:07   #
jar Loc: North New Jersey
 
chase4 wrote:
Yesterday I took two sequential shots,JPEGs, of a surf shack being rebuilt after last winter's storms and the EXIF data shows the exact same information for both: Nikon D610, 28-300 lens @ 55mm, aperature priority f/8, 1/3000 sec, ISO 800, EV=0 with auto WB. As one can see, the two exposures look quite different, the #1 being much lighter than the #2. The histograms do show a difference also where #1 is more ETTR than the #2. My question is: does anyone have any ideas what may have caused this? Thanks in advance for any help with this.
chase
Yesterday I took two sequential shots,JPEGs, of a ... (show quote)


Looking closely I see all the elements too identical to be two shots even for sequential photos, it's the same shot just edited?

Reply
Apr 6, 2023 22:20:13   #
paulrnzpn Loc: New Zealand
 
chase4 wrote:
Yesterday I took two sequential shots,JPEGs, of a surf shack being rebuilt after last winter's storms and the EXIF data shows the exact same information for both: Nikon D610, 28-300 lens @ 55mm, aperature priority f/8, 1/3000 sec, ISO 800, EV=0 with auto WB. As one can see, the two exposures look quite different, the #1 being much lighter than the #2. The histograms do show a difference also where #1 is more ETTR than the #2. My question is: does anyone have any ideas what may have caused this? Thanks in advance for any help with this.
chase
Yesterday I took two sequential shots,JPEGs, of a ... (show quote)


Always shoot scenes such as this in M-mode (Manual), not in Aperture Priority. That'll make the exposure the same for every frame, provided of course, that the sunlight (cloud cover) does not change. But then why would you want to grab a number of identical photos of a scene like this in the first place? Okay, unless it's to pick one out later where the waves are the best. One other thing to do is to set the WB to one of the 'manual' settings too (or a custom setting), if you didn't do that in this case.

Reply
Jun 10, 2023 18:11:39   #
mhbenton Loc: USA, Georgia
 
Only a guess, spot metering. Even a little shift in point location can result in big changes when suing spot metering.

Reply
Jul 6, 2023 22:33:08   #
Howard5252 Loc: New York / Florida (now)
 
It's happened to me and I have no explanation ... I don't consider it a big deal and have ignored it.

Reply
 
 
Jul 14, 2023 08:16:31   #
Tudor Loc: Bucyrus OH
 
I have had similar issues with my D500. It's almost as if the camera is set to auto-bracket, although my settings don't show that. Sounds like a question for Nikon.

Reply
Jul 14, 2023 08:16:42   #
Tudor Loc: Bucyrus OH
 
I have had similar issues with my D500. It's almost as if the camera is set to auto-bracket, although my settings don't show that. Sounds like a question for Nikon.

Reply
Page <<first <prev 7 of 7
If you want to reply, then register here. Registration is free and your account is created instantly, so you can post right away.
Photo Analysis
UglyHedgehog.com - Forum
Copyright 2011-2024 Ugly Hedgehog, Inc.