What is Backscatter?
Sunday January 4, 2009
The snow is white, but the night is dark. So you use your flash.
The pictures look great, of course; specks of blown-out white littered all over the place lend an aery touch to the wintery scene.
Often, backscatter — light from a strobe reflected right back into the camera's lens by particles such as snowflakes — is something shunned, though, and removed later with spot editing or maybe a noise filter.
With email, backscatter is usually unwanted — and hopefully filtered away — as well:
›› When a spammer masquerades as you, delivery failure messages — and spam — called backscatter can show up in your inbox.
The pictures look great, of course; specks of blown-out white littered all over the place lend an aery touch to the wintery scene.
Often, backscatter — light from a strobe reflected right back into the camera's lens by particles such as snowflakes — is something shunned, though, and removed later with spot editing or maybe a noise filter.
With email, backscatter is usually unwanted — and hopefully filtered away — as well:
›› When a spammer masquerades as you, delivery failure messages — and spam — called backscatter can show up in your inbox.
Comments
backscatter is soooooo annoying.
You know you’ve really ticked a spammer (let’s just lump them all under criminal category), when you start to receive “backscatter” spam….i.e.: in which they put “your” address in the “from:” line, and a non-working/bunk address in the “To:” line of their spammer (errr….bulk e-mail marketing…..sorry) program - since the tube across the net, think “you” (hey, it said it was from you, it must be right……? not really….) sent the mail, so you get “backscatter” e-mail, stating the e-mail box is full, maybe the user name does not exist, etc…..