Digital Matt
alter ego: Analog Matt
- Joined
- Jan 30, 2004
- Messages
- 5,358
- Reaction score
- 73
- Location
- Santa Barbara, CA
- Website
- www.mattperko.com
- Can others edit my Photos
- Photos NOT OK to edit
Dom0803 said:That would be quite right.
Thanks all the same, chaps.
There may be no distinction in the word itself, but we would say "I am going to buy an IR lens", anyone who knows what it is knows it's just going to be an attachment. If we were to buy what you know as a lens, we may specify the mm of it. "I am going to buy a 200mm lens", thus a high zoom actual lens.
A lens to us Brits is simply a convex or concave piece of glass used in optics, be it one piece (your filter) or a hybrid of lenses (your actual lens)
Filters have sizes designated in mm to, so I could tell you I'm going to buy a 72mm lens, or a 55mm lens, but I'll also be buying an 85mm lens and a 50mm lens. It seems to me that it would be a good idea to have more of a distinction. That's why the companies that manufacture filters call them just that, filters, and not lenses.