What's wrong
Apr 5, 2021 09:27:08 #
zug55
Loc: Naivasha, Kenya, and Austin, Texas
As others have pointed out, you have some noise in this image. Also the bottom of the frames on the left are pretty much in focus. So it seems that you have to gain control over where you want the focus to be.
These reflection shots can be tricky, particularly if the reflection pane is close but what is being reflected is at a much larger distance. So you will have to pick if you want to focus on the frame or on the reflection. I usually switch to manual focus in situations like this to have more control. Another potential solution would be to shoot at f/16 or f/22 to increase depth of field--which may force you to jack up the ISO, producing more noise given that your scene is already pretty dark.
These reflection shots can be tricky, particularly if the reflection pane is close but what is being reflected is at a much larger distance. So you will have to pick if you want to focus on the frame or on the reflection. I usually switch to manual focus in situations like this to have more control. Another potential solution would be to shoot at f/16 or f/22 to increase depth of field--which may force you to jack up the ISO, producing more noise given that your scene is already pretty dark.
Apr 5, 2021 09:39:23 #
cascadejunkie wrote:
Another possibility for "unsharpness" may be that there are several big glass panels stacked on top of each other. As they are set off a fraction, so is the reflection of the individual panes. And this may be the reason for the unsharp perception.
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Apr 5, 2021 09:49:14 #
JRD3
Loc: Richmond, VA
Thanks. That makes some sense. Larger f stop allows in more light and quicker shutter, but produces another set of problems with DOF.
Apr 5, 2021 11:05:39 #
Rick from NY
Loc: Sarasota FL
I’m not sure it’s a dof problem since you are using a 24mm lens which has a generous dof due to focal length. Notice that the bottom left of close in frame is in focus as others mentioned, but objects deeper in the shot on the left are also focused most of the way. That tells me the primary problem with the shot is the stacked glass.
If op shot at f4 but focused 1/3 of the way into the frame, I’m guessing both the bottom left of close frame and the background on the left would all be sharp. And the reflections would not.
If op shot at f4 but focused 1/3 of the way into the frame, I’m guessing both the bottom left of close frame and the background on the left would all be sharp. And the reflections would not.
Apr 5, 2021 11:07:53 #
Apr 5, 2021 11:09:26 #
Dikdik
Loc: Winnipeg, Canada
There are several lights of glass and the reflection off the surfaces is giving the appearance that it is out of focus.
Apr 5, 2021 11:24:24 #
Reflections are the distance from you to the reflection and the reflection to the item being reflected - for focus.
So focus distance was you to glass to the window.
So focus distance was you to glass to the window.
Apr 5, 2021 11:35:00 #
Rick from NY
Loc: Sarasota FL
CPR wrote:
Reflections are the distance from you to the reflection and the reflection to the item being reflected - for focus.
So focus distance was you to glass to the window.
So focus distance was you to glass to the window.
Not sure who you’re replying to, but while your facts are true, if the reflected image is unfocused due to stacked glass refraction, the reflection will be a perfectly focused out of focus subject
Apr 5, 2021 12:35:46 #
As gvarner said “depth of field”. In order to get everything in sharp focus at that distance and angle you need to stop down and with that being said you probably need much more light. Or focus stack you shot.
Apr 5, 2021 12:41:16 #
Apr 5, 2021 12:47:16 #
Dikdik
Loc: Winnipeg, Canada
I'm not sure depth of field will help... might reduce the internal reflections a bit, but they could be 1" apart... polarising filter might reduce the reflections a bit, but not sure... a matter of experiencing this. The first time I experienced this reflection, I was in Grade school and there were a bunch of storm windows stacked against the wall, and I noticed the multiple images and thought they were neat...
Apr 5, 2021 13:07:14 #
JRD3 wrote:
I took this photo is a darkened building. I ran ISO up to 2000 so I could hand hold.
Image shot on D750, 24mm, f 4 @1/80. It is not sharp. High ISO? camera shake?
Comments welcomed.
Image shot on D750, 24mm, f 4 @1/80. It is not sharp. High ISO? camera shake?
Comments welcomed.
It's in focus on the rim of the closest window. The glass, of course, reflects images from every window stacked beneath the front one.
Apr 5, 2021 13:33:35 #
Apr 5, 2021 14:30:45 #
Apr 5, 2021 14:46:35 #
If the glass in the windows is double or triple pane you'll get multiple refract images - one for each pane. If you have multiple windows stacked you'll get double images from each window but the image offset will be proportional to the distance between glass panes.
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