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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 ...
2rs2ts's user avatar
  • 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 ...
YSN's user avatar
  • 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 ...
Steve's user avatar
  • 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 ...
Russell Hinman's user avatar
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 ...
mrwhit749's user avatar
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 ...
gss's user avatar
  • 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 ...
Clay's user avatar
  • 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 ...
e_asphyx's user avatar
  • 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....
Drew's user avatar
  • 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 ...
hamz's user avatar
  • 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 ...
jo87casi's user avatar
  • 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 ...
eager-lemur's user avatar
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 ...
Nick Williamson's user avatar
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 ...
TheRealDestroyer's user avatar
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 ...
Snack Exchange's user avatar
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 ...
user13549917's user avatar
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 ...
Tomas Loksa's user avatar
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 ...
Steve Franks's user avatar
-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 ...
Amber Alvia's user avatar
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 ...
Shidouuu's user avatar
  • 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 ...
Management's user avatar
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 ...
Slashee the Cow's user avatar
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 ...
Deb's user avatar
  • 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 ...
GBG's user avatar
  • 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 ...
Amarth Gûl's user avatar
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?
Nikki's user avatar
  • 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?
Kamran's user avatar
  • 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 ...
fmplayer's user avatar
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, ...
TRH's user avatar
  • 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 ...
Robb Godshaw's user avatar
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 ...
Arunabh Bhattacharya's user avatar
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 ...
VaNa's user avatar
  • 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 ...
WS87's user avatar
  • 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
Jessica's user avatar
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?
user112333's user avatar
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 ...
Mike's user avatar
  • 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 ...
Mike's user avatar
  • 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....
Timothy L. Miller's user avatar
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 ...
Swarup Maity's user avatar
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 ...
C. Crt's user avatar
  • 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 ...
setholopolus's user avatar
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 ...
Bartek Kudzia's user avatar
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 ...
Marcin's user avatar
  • 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 ...
reox's user avatar
  • 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 ...
Gill Bates's user avatar
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 ...
Anto's user avatar
  • 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 ...
Aaron's user avatar
  • 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. ...
Lou Lowe's user avatar
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, ...
Peter M's user avatar
  • 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 ...
Marie's user avatar
  • 1

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