EXIF (Exchangeable Image File Format) is a way to add additional information to various types of media files.
What is EXIF?
EXIF is a very useful feature in photography , allowing the resulting photo file to record a large amount of useful information about how the photo was taken and how it affected the photo.
EXIF is very useful in such cases:
1. To remember how a photo was taken . This is very useful when you've photographed something and later want to know what time of day, what day, what year, what camera, and what lens were used. For example, I found an old photo from a hike and was curious about when I took it, what settings I used, and even what lens I used.
Photo for analysis
Therefore, I opened my snapshot using the ShowExif program and that's what I saw (only a part of the data in the table).
| Parameter | Its meaning | Comment |
| Make | NIKON CORPORATION | |
| Door Design | NIKON D90 | Camera Nikon D90 |
| Exif offset | 348 | |
| Exposure Time | 1 / 4000 sec | Endurance 1 / 4000 sec |
| Fnumber | F5,0 | Aperture Value F5,0 |
| Exposure program | aperture priority | Shooting Mode - Aperture Priority |
| ISOSpeed Ratings | 200 | ISO value |
| Exif Version | "0221" | |
| Date Time Original | 2010:08:21 07:08:11 | Shooting date |
| Date Time Digitized | 2010:08:21 07:08:11 | |
| Component Configuration | Ycbcr | |
| Compressed Bits Per Pixel | 4/1 | |
| Exposure Bias Value | - 2 EV | Amendment exposure |
| Max Aperture Value | F4,3 | |
| Metering Mode | Multisegment | Measuring method exposure - matrix |
| White balance preset | Cars | White Balance |
| Flash | off | Flash off |
| Focal Length | 38,00 mm | Focal Length 38mm |
| Maker note | "Nikon" | |
| User Comment | not possible to define |
That's how I learned that the photo was taken on August 21, 2010, at 7 a.m. with a Nikon D90 , F5.0, 38mm, 1/4000, auto white balance , etc. This means you can virtually return to that exact moment and understand exactly how the photo was taken. By drawing conclusions from this, you can adjust the necessary settings next time to get an even better photo.
2. EXIF can be used as educational information in photos you like. Let me explain: if you see a photo online that interests you, and if the EXIF hasn't been removed, you can see what settings the photographer used to capture a particular scene. This data can help you understand certain shooting techniques. Many websites automatically extract this information from the photo so it's immediately visible. For example, on 500Px.com , it's displayed to the right of the photo, and on Photomania, it's displayed at the bottom left. The easiest way is to view EXIF directly in your browser; it's very convenient – you search for an interesting image, find it online, and immediately view the EXIF using the "Image Info" feature. True, this doesn't work in all browsers, but there are countless dedicated plugins available.
3. EXIF also helps image processing programs understand camera settings and apply appropriate actions . For example, this is important for correcting distortion, chromatic aberrations, understanding color space, and so on. For example, the program will automatically detect the focal length of the lens, its type, and correct distortion using a specified algorithm.
This is how EXIF looks in Lightroom
Conclusions:
Sometimes EXIF is very useful, helping you remember where and when a photo was taken, or simply telling you how someone took it. EXIF is also very useful when editing photos in photo editors.
Thank you for attention. Arkady Shapoval.
Good afternoon. Can unscrupulous sellers “rewind” shuttercount in any way? The information on the network is contradictory: someone says that the service center (and therefore, in theory, anyone) can and should even reset this parameter when replacing the shutter, while others say that the shutter itself contains this counter ..
can. service program. You can also control auto focus, remap the matrix (remove dead pixels)
Can I find out the SN of the lens and with what program?
But how to fit a lens model into it? to then remember Pentacon was it or Takumar :)
Good day to all! The ShowExif program has 2 items in the TOOLS menu:
1) Remove Exif from files
2) Delete All Markers from Files
Who knows what markers are in question?
Thank you.
You can, for example, create a copy of files and delete them, so you can compare and understand them later. (=
The date of creation, recording, change, everything that changed what changed, in general, everything except the physical components. (w * h, size, etc.)
Why do I have no detailed information when viewing EXIF, shot on Nikon 7100 - not spelled out so to speak? If you look at the properties of the file, then there is more information ...
Because the viewer shows only part of the information that is provided by the developers. This is simply a property of the program you are using.