Register
Help
Remember Me?
Unified View
LF Home Page
Forum Guidelines
Forum
New Posts
FAQ
Calendar
Forum Actions
Mark Forums Read
Quick Links
Today's Posts
View Site Leaders
Affiliate Links
Mark Forums Read
FAQ
Today's Posts
Google Site Search
Advanced Search
Advanced Search
If this is your first visit, be sure to check out the
FAQ
by clicking the link above. You may have to
register
before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.
Search Single Content Type
Search Multiple Content Types
Search In
Search Type:
Posts
Forums
Group Messages
Groups
Search Thread - How to determine focal length of brass lenses from length and diameter measurements?
Keyword(s):
Search Entire Posts
Search Titles Only
User Name:
Find Latest Posts by User
Find Threads Started by User
Exact name
Tag:
Additional Options
Search in Forum(s):
Search All Open Forums
Search Subscribed Forums
Site Forums
News
Feedback
LF Forums
Announcements
Business
Cameras & Camera Accessories
Cameras - ULF (Ultra Large Format) and Accessories
Darkroom: Equipment
Darkroom: Film, Processing & Printing
Digital Hardware
Digital Processing
Wet Plate
Gear
Image Sharing (LF) & Discussion
Image Sharing (Everything Else) & Discussion
Lenses & Lens Accessories
LF DIY (Do It Yourself)
Lighting Techniques - Studio, Artificial
Location & Travel
On Photography
Resources
Style & Technique
Community
Introductions
Groups & Meetings
New Products and Services
Kickstarter Announcements
Also search in child forums
Find Threads with:
At Least
At Most
Replies
Find Posts:
Any Date
Your Last Visit
Yesterday
A Week Ago
2 Weeks Ago
A Month Ago
3 Months Ago
6 Months Ago
A Year Ago
and Newer
and Older
Sort Results by:
Title
Number of Replies
Number of Views
Thread Start Date
Last Posting Date
User Name
Forum
in Descending Order
in Ascending Order
Show Results as:
Threads
Posts
Search Tag Cloud
These are the 70 most-searched-for thread tags
3x5
4x5
5x7
6x7
8x10
11x14
20x24
arca
arca swiss
bellows
betax
bokeh
brass
build
cambo
camera
chamonix
color
darkroom
date
development
diy
dof
dslr
durst
ema
enlarger
epson
film
flash
fp100c
fuji
gitzo
glass
graflex
head
hole
ipad
jobo
kmv
kodak
large
large format
led
lens
lift
linhof
macro
mpp
paper
parts
petzval
polaroid
portrait
repair
scanner
scanning
schneider
screen
shutter
sinar
symmar
tips
toyo
tripod
ulf
wista
wtb
xray film
zeiss
