Stack Exchange — photo.stackexchange.com

The content of photo.stackexchange.com (https://photo.stackexchange.com/), a Stack Exchange question-and-answer site, as published in the Stack Exchange Data Dump of April 2024 on the Internet Archive. The posts table holds 264,585 rows: 95,091 posts (26,937 questions, 66,908 answers, 610 tag wiki excerpts, 610 tag wikis, 2 posts of type 3, 21 posts of type 6 and 3 posts of type 7) and 169,494 comments, written between 15 July 2010 and 31 March 2024. Beside it are 79,965 user accounts, 467,301 votes, 141,626 badges awarded, 1,173 tags, 273,346 post revisions and 22,557 links between posts. Every answer keeps the question it answers and every comment the post it was written on, so the threads can be rebuilt. The Internet Archive item describes the dump as anonymised; the votes table names the voter in only 312 rows.

#Expertise network#Photography#Reputation#Stack exchange data dump

Download data package README Original files as received BibTeX JSONSimilar datasets

Analytics

The interactive network needs JavaScript.

· graph.json

The full graph has 20,708 nodes; this view shows the 1,000-node sample the pipeline drew for display. Node size is centrality, colour is community.

20.7K
Nodes
54.9K
Edges
1.28e-04
Density
169
Components
-0.1527
Assortativity
1.4%
Reciprocity
10.2K
Bridges
Most central nodes
119240.00976
52050.00961
19430.00922
48920.00826
225750.007
16200.00618
890.00594
83120.00589
62360.0057
22000.0056
Content metrics

264,585 records scored · min–maxmean ± 0.675 σ (the interquartile range if the values are roughly normal)mean

x scoreμ 1.791 ± 4.657
min -18max 320
x view countμ 3.9K ± 12.3K
min 10max 510.8K
x answer countμ 2.484 ± 2.104
min 0max 56
x comment countμ 1.783 ± 2.604
min 0max 41
x favorite count0.2% true
true 0.2%false 99.8%
8.5
Flesch–Kincaid grade
US school grade level
9.0
Automated readability index
Frequent terms
cameralensimageuselightlikelensesfocusdonsensorneedwantflashgoodcanontimeimagesapertureexposurequestionwayphotoshutterphotosdifferentcamerasfilmcolorbetterthinkisorawworkanswerknowpointlookfocalnikonsetphotographysizequalitylengthspeedmodeprobablyframefindright
Topic clusters

Topic 0

lens
canon
macro
mount
zoom
focus
body
nikon

Topic 1

focal
lens
length
sensor
distance
size
field
view

Topic 2

answer
question
comment
edit
ask
think
eos
sorry

Topic 3

flash
trigger
ttl
fire
radio
sync
slave
curtain

Topic 4

card
file
memory
exif
datum
write
drive
exiftool

Topic 5

white
color
balance
layer
black
mask
image
curve

Topic 6

light
lighting
shadow
source
fill
flash
subject
reflector

Topic 7

raw
file
jpeg
compression
image
format
datum
jpg

Topic 8

lightroom
catalog
folder
import
file
export
photo
collection

Topic 9

print
printer
paper
scan
ink
dpi
scanner
size

Topic 10

focus
button
mode
press
manual
live
viewfinder
autofocus

Topic 11

tripod
head
plate
screw
strap
weight
attach
bag
Show all 24 topics

Topic 12

photo
photography
photographer
question
people
photograph
good
like

Topic 13

color
monitor
profile
srgb
space
display
rgb
gamut

Topic 14

film
roll
develop
developer
development
negative
process
push

Topic 15

noise
iso
sensor
exposure
pixel
signal
high
increase

Topic 16

thank
answer
question
appreciate
helpful
help
win
accept

Topic 17

filter
polarizer
circular
hood
polarize
lens
linear
polarizing

Topic 18

copyright
photo
legal
license
public
photographer
sell
business

Topic 19

dust
clean
air
sensor
cleaning
condensation
lens
cloth

Topic 20

star
moon
filter
sky
exposure
astrophotography
light
sun

Topic 21

battery
charge
charger
power
grip
canon
party
capacity

Topic 22

sharpen
image
blur
pixel
crop
artifact
resolution
resize

Topic 23

shutter
speed
iso
exposure
mode
aperture
set
priority
Top hashtags
#1332
#2293
#3162
#488
#546
#023
#2522
#621
#dontask21
#page21
#v20
#promotion17
#714
#tab14
#813
#q13
#d12
#171611
#forum11
#1010
Top emoji
😓1

Computed over the full corpus.

Record

Catalog key
stackexchange-photo-stackexchange-com
Authors
Stack Exchange, Inc.
Year
2024
Source paper
Stack Exchange Data Dump
License
CC BY-SA 2.5 / 3.0 / 4.0 (by contribution date) (CC-BY-SA-2.5 AND CC-BY-SA-3.0 AND CC-BY-SA-4.0)
Records
292,326
Nodes
20,708
Edges
54,925 (directed)
Nodes are
user (Stack Exchange account)
Edges are
answer collaboration (A answered B's question)
Attributes
nodes have attributes; edges have attributes
Text corpus
question titles, post bodies, comment text, tag names
Languages
en
Collected
2010/2024 (2010s, 2020s)
Tasks
From the graph: link prediction, community detection
Region
Global (inferred: the platform is used worldwide)

Provenance

Originally published at
https://archive.org/details/stackexchange link checked
Original files as received
The source files, unconverted, kept for reference: mirrored on echo.directory on 2026-10-09, 109.0 MB across 1 files. Checksums in MANIFEST.json. For use, start with the data package below.
Data package
Version 1.0.0 of this dataset as an ECHO Data Package: posts (264,585 rows), users (79,965 rows), x_votes (467,301 rows), x_badges (141,626 rows), x_tags (1,173 rows), x_post_history (273,346 rows), x_post_links (22,557 rows).
Structure
Temporal (timestamped), Node attributes, Text, Threaded conversations

How to cite

BibTeX

@misc{echo2026,
  title  = {ECHO: Exploratory Compendium of Humanity Online},
  author = {Switzer, Braden and Zafarani, Reza},
  year   = {2026},
  url    = {https://echo.directory},
  note   = {Syracuse University}
}

@misc{stackexchange_2024,
  title     = {Stack Exchange Data Dump},
  author    = {{Stack Exchange, Inc.}},
  year      = {2024},
  month     = {apr},
  publisher = {Internet Archive},
  url       = {https://archive.org/details/stackexchange}
}

APA

Switzer, B., & Zafarani, R. (2026). ECHO: Exploratory Compendium of Humanity Online [Data repository]. Syracuse University. https://echo.directory

Stack Exchange, Inc. (2024). Stack Exchange — photo.stackexchange.com [Data set]. https://stackexchange-photo.echo.directory/

MLA

Switzer, Braden, and Reza Zafarani. ECHO: Exploratory Compendium of Humanity Online. Syracuse University, 2026, echo.directory.

Stack Exchange, Inc. Stack Exchange — photo.stackexchange.com. 2024, stackexchange-photo.echo.directory/.

BibTeX · RIS · CSL-JSON

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