Update 2024-03-27: Greatly expanded the "Samples" page and renamed it to "Glossary".
Update 2024-04-04: Added 5 million mid-2011 posts from the k47 post dump. Browse (mostly) them here.
Update 2024-04-07: Added ~400 October 2003 posts from 4chan.net. Browse them here.

Welcome to Oldfriend Archive, the official 4chan archive of the NSA. Hosting ~170M text-only 2003-2014 4chan posts (mostly 2006-2008).
!X5MdOLLFAg
[70 / 0 / ?]

!X5MdOLLFAg No.298443 View ViewReplyOriginalReport
I was just readinf about crop factors and my 450D has a 1.6 crop factor. I have an old EF 80-200mm AF lens that predates digital (I think). Am I assuming that if I times that by the crop factor I get a lens equivalent of 128mm-320mm?