All Questions
26,769
questions
0
votes
0
answers
78
views
Breaking down the format of the "Y Cb Cr Sub Sampling" EXIF tag
When using exiftool to inspect various images, I've seen lots of different values for the Y Cb Cr Sub Sampling tag. A few ...
- 101
1
vote
0
answers
97
views
How to use JPG embedded in RAW for color calibration in darktable
My camera (Canon EOS R5) does a great job with colors for the embedded JPG, but I am unable to achieve similar colors (mainly skin tones) when processing the RAW version of the image in darktable.
I ...
- 111
0
votes
1
answer
222
views
Is there any way to date this photo?
I have this older looking Velox photograph with the numbers "430" typed on the back. The Velox logo in this photo has an Oval shape around the text with the text being in a fancy sort of ...
- 1
0
votes
1
answer
118
views
Did I get scammed buying this "vintage film negative"
I purchased a "vintage 8 x 10 film negative" of Shirley Temple on eBay supposedly from someones collection. I had assumed that by film negative it must be the actual film used in the camera ...
5
votes
1
answer
181
views
Upgrade advice from Canon 7D II to R7 or R6 II
I have been a Canon DSLR user for many years and I am thinking of upgrading to mirrorless, mainly to take advantage of the lighter lenses. The AF eye tracking is also very attractive to me.
We live in ...
- 53
0
votes
1
answer
125
views
Is this dust or fungus in the viewfinder?
Do you know if this is dust or fungus in the viewfinder? Purchased a used Canon EOS 1N in "mint" condition from eBay recently that had "no fungus" in the description.
A flashlight ...
- 3
1
vote
0
answers
78
views
Part of enlarged photo changes from original
I copied a photo from the net to my computer of a friend standing in front of a brick wall with a window in it.
On my computer I enlarged the photo slightly.
The original photo shows the lines that ...
- 11
1
vote
0
answers
28
views
Exposure meter's result EV relative to the film ISO density threshold
Let's take a film with properly measured ISO speed. It means that there is some threshold exposure where it's resulting density (if developed to a specific standard gamma) raises just slightly (there ...
- 111
0
votes
0
answers
24
views
Fujifilm Xt200 lens error with Viltrox 23mm/f 1.4 lens
I just bought my first lens, an Viltrox 23mm/f1.4 for my Fujifilm Xt200 camera and I have this error where the display starts flickering and then the LENS ERROR appear and can't figure out the problem....
- 1
4
votes
1
answer
134
views
Why am I getting weird circular lines below my product lit by a speedlight?
I'm using a speedlight positioned to the left of my product when taking the picture and I see circular lines and a shape around it.
I've tried removing the cap, changing the position of the speedlight ...
- 43
0
votes
1
answer
73
views
Why am I suddenly unable to focus with with Olympus OM-2 prism?
Somehow the prism for focusing in my Olympus OM-2 changed. The prism lost all its structure and what is left is a round grid structure with a divided circle in the middle, that is changing its ...
- 101
0
votes
0
answers
70
views
Shutter Priority Mode - Purple Photos
When taking photos using a Canon Digital Rebel XS in shutter-priority mode and experimenting with very fast shutter speeds, the photos are usually dark as I expect, but occasionally the photos will ...
- 101
2
votes
4
answers
167
views
Should I go with a Sigma 150–600, or 70–200 + teleconverter?
I am newer to photography and it is a hobby. I take photos at sports events for myself and friends. I currently have a Nikon Z 6II with a FTZ adapter, with 35mm and a 70–200mm lenses. I was looking at ...
0
votes
1
answer
48
views
Photo and Video recovery?
i have a bunch of sentimental photos and videos (32ish GB) that were corrupted and was wondering if anyone had any idea how to recover data. what software should I use? Do I do it manually? just ...
15
votes
7
answers
6k
views
Why is minor facial non-symmetry obvious in photos?
For example, my right eye is about 1 mm below my left eye and it isn't obvious when someone meets me in person. But in photos it's pretty obvious that it's discovered just seconds after looking at the ...
- 261
0
votes
1
answer
86
views
How best to convert PNG to WebP
I have 900 large, proprietary, multi-coloured PNG images of different sizes scanned @ 600 PPI ranging from 10MB to 50MB. The scans (ie photos) are of prints. The average size is 35MB. They all have a ...
1
vote
3
answers
107
views
Photos disappeared from SD card
We took some great photos with our friends on the beach. We were using an older Nikon D3100. My girlfriend, who was the one who took most of them, noticed that a few of them were missing. She thought ...
- 11
4
votes
2
answers
783
views
Something is corrupting my jpegs. How can I trace what did this?
I keep finding jpeg images on my laptop, which are corrupt. Some have a gray band at the bottom, some are reported bad by Bad Peggy (but look normal when viewed in e.g. XNView) and some are just ...
- 121
-6
votes
3
answers
172
views
Why do think that moving images are different than still images when there's no such thing as a real moving image? [closed]
Why do people think that moving images is different than still images when there's no real moving images, the term ''moving images'' refers to the optical illusion where your brain thinks the images ...
0
votes
1
answer
79
views
Converting .CR2 raws to non-raw image format with ImageMagick mogrify makes images warm
ImageMagick's mogrify seems to be making my images warm-colored when I convert them to a non-raw format. Why is this? I've tried this with .jpg, .png, and .jxl.
I converted the same image with ufraw ...
- 103
0
votes
0
answers
62
views
Traffic Camera IR image question
Recently me and my daughter were photographed by a Traffic IR camera for not wearing the seat belt.While my image when viewed carefully in digital form the belt could be seen.The black belt had turned ...
1
vote
0
answers
59
views
Exposure compensation on flash only works in manual mode, is this normal?
I just got a Nissin MF18 ring flash to stick on my Sony α7 III. I'm just wondering if how it behaves is normal or if there's a setting buried somewhere in the camera or flash that might change it. In ...
- 111
13
votes
3
answers
3k
views
Is it possible that sunlight reflecting off a camera lens could cause sufficient glare to dazzle a driver?
Edited to say: Apologies, it's sunset that these photos are being taken, not sunrise. I hope that doesn't affect the answers that everyone has taken the trouble to answer. Thanks again to all for all ...
- 131
0
votes
1
answer
70
views
Image metadata contains Focal length and calibrated focal length but the values are different
I have a DJI drone image. When I use gdalinfo -mdd all myphoto.jpg at the command line I can read the EXIF and XMP tags for the image. I see there are two values ...
- 155
3
votes
3
answers
180
views
Does the inverse square law apply to all lights, including light within a lens?
In The Cine Lens Manual by Jay Holben and Christopher Probst pp.46, it is mentioned that the light loses brightness/intensity even within the lens.
This part is discussed right after the inverse ...
- 549
0
votes
0
answers
54
views
How can I troubleshoot a Nikon D5000 self timer that isn't working?
I have a Nikon D5000 and the self timer stopped working. Any ideas on how to troubleshoot and get it to work again?
- 1
1
vote
5
answers
244
views
Which pin of canon SL3 hot shoe triggers the flash?
I tried several flashes on my Canon EOS Rebel SL3, but it didn't work. I'm wondering which pin on hot shoe triggers the flash?
- 11
2
votes
4
answers
2k
views
PNG files in photography workflow
I shoot Fujifilm and like the builtin film sims. Capture One, does a good job at reproducing them, but I find sometimes Fuji JPEGs better, particularly when some proprietary features (e.g Color Chrome ...
- 21
0
votes
4
answers
106
views
Metering Mode Doesn't Effect RAW Files? What About The JPEG Preview?
[Sony A7R5]
Ok, this is more about confirming what I think is true.
I know that the metering mode doesn't make a difference to the RAW files when I'm shooting in manual because I'm setting ISO, ...
- 181
0
votes
1
answer
80
views
What Nikon lens is this? What kind of UV-pass beam splitter is this?
A detective challenge for this wonderful community of experts:
I am working on a science museum exhibit about the different ways animals can see light. I am trying to reverse engineer the incredible ...
2
votes
2
answers
860
views
Is SSD a safe replacement for HDD image storage?
Every small M.2 SSD (solid-state drives) is increasingly replacing HDD (hard disk drives) in new PCs for file storage.
SSD is proven to be better for image editing, but what about image storage? Is a ...
1
vote
1
answer
130
views
Are there any advantages of Tetra/Nonapixels in smartphone cameras over bigger pixels?
Newer Samsung smartphones have sensors with absurd pixel counts like 108 Mpx where pixel size is 0.8 micrometers but they are grouped in 3x3 arrays of the same color making them effectively 2.4 ...
- 113
2
votes
2
answers
197
views
What are these striped artifacts in these photos?
I was at a concert and some of the pictures I took had these blue and red or black stripe artifacts, is there a name for these? Would I be able to make a similar or same effect if I desired or are ...
- 21
0
votes
1
answer
109
views
How to fix shutter release disabled
I have a Nikon D5500
It has a message Shutter release disabled
How do I fix this please
- 1
0
votes
2
answers
145
views
What is the name of this optical effect?
I think effects of this kind are generally called lens flares, but is there a more specific term for this specific effect?
3
votes
5
answers
3k
views
What type of editing is necessary to achieve this type of watch photo?
The first photo is mine and the rest are thewatchbox.com photos which I'm trying to replicate. Their photos have deeper colors and pop more. Mine seems to have a grey tone to it. Anything I can do pre ...
- 81
1
vote
2
answers
152
views
How to avoid reflection in watch photos?
I use a cone made out of translum to take watch photos. This creates a reflection on the crystal/face of the watch. Is there a way to avoid this? I need these head on shots to look like the rolex ...
- 81
1
vote
1
answer
97
views
Why is only the extreme right of my photo blurred?
I was standing still on a platform ladder when shooting this photo, so not in motion. However, I have several other examples of posed photos like this where only the right side of the photo is blurred....
0
votes
1
answer
83
views
What could cause the solid red/orange effect at the bottom of this picture?
I have observed an unusual effect in an RGB image where a portion of it appears solid color instead of displaying the intended colors (only once). Do you have any insights into what kind of effect ...
- 15
1
vote
1
answer
436
views
Prevent my Pixel 6 smartphone from auto-editing my photos
I have a Google Pixel 6 that I bought mostly because of the good camera. I have to admit, for a phone, it's amazing. However, a "feature" really annoys me: it keepes automatically editing ...
- 111
0
votes
1
answer
70
views
Do I need to upgrade my camera for group portrait photography?
I have a D3500 with kit lenses which I use to shoot group portraits.
I have read extensively about lighting, aperture, ISO, shutter speed, etc., and have applied my learning to my photos. I shoot all ...
- 101
5
votes
2
answers
1k
views
What can cause double-vision effect in slightly out of focus areas?
I have an issue with my Canon 70-200 F/4L USM. It is less sharp at 200mm than at shorter range and the objects that are slightly out of focus are rendered twice with horizontal offset. The shutter ...
0
votes
1
answer
126
views
Is it possible to combine a backpack clips with a plate from tripod?
I'm thinking about buying a clip to mount my camera (Canon EOS R) to my backpack (Deuter Transalpine). My first thought was to buy Peak Design Capture. But I'm not sure if I can combine this clip with ...
- 105
1
vote
1
answer
146
views
What does Canon's Brightness Histogram actually show?
Canon cameras can show a histogram of the images (either in live view or in the preview).
There are two modes: an RGB histogram and a "brightness" histogram.
While the RGB histograms can ...
- 217
1
vote
2
answers
93
views
Is there solution for dynamic masking in Photoshop?
I'd like to achieve a "dynamic" masking workflow where one layer is masked based on another greyscale layer or group which I can actively edit and see the final results instantly with the ...
- 171
2
votes
1
answer
88
views
Why does Lightroom CC Library Module adds grain and/or texture to certain of my images that is not present in the Develop Module?
I've seen a few posts about the lightroom Library Module having a change in colors from the Develop Module because of the different color space they use but in my case it's more a question of Noise ...
- 21
2
votes
1
answer
69
views
Flash and camera shutter not in time
I’ve searched far and wide but cannot find an answer. I recently purchased godox ct-16 to trigger my flash off the camera (canon a1). It worked perfectly on my digital camera and I copied the manual ...
- 21
0
votes
2
answers
62
views
Canon 7D - shutter Will Not Fire and Menus Disabled When Auto-Focus Is On
When I set the shooting mode to anything but automatic(eg., M, TV, SV, c1, c2, c3), and the lens is on the camera and is set to auto focus, I cannot fire the shutter or view any of the screens.
...
- 1
0
votes
3
answers
119
views
Would a different body help me with noise reduction?
I've been spending time shooting people ballroom dancing under subdued lighting (without a flash or other lighting controlled by me). The kit I have been using for doing this is my Nikon D7500, ...
- 1,821
0
votes
0
answers
76
views
Handmade paper precoating for inkjet printing
I saw a similar question here that was discussed in 2017 so I wondered if there’s any fresh information.
I wonder if someone here is experienced in making homemade covering for different types of ...
- 1
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