|
Author
|
Topic: FS: Elmo Projection Lens F1.1 - 12.5-25mm
|
|
|
|
|
|
|
|
|
|
|
Dominique De Bast
Film God
Posts: 4486
From: Brussels, Belgium
Registered: Jun 2013
|
posted August 15, 2014 12:25 AM
Jam, the first numbers refers to the brightness, the less the number is, the brighter image you get. A 1.1 lens gives you a brighter image than a 1.3 one and a 1.0 gives you a brighter image than a 1.1 lens. 1.0 is the brighter you can find. The second numbers refer to the size of the picture. There are two numbers as Super 8 projectors have a zoom lens. The smaller the number is, the bigger the picture will be on the screen. So a 12,5 (-25) lens will give you a larger picture than a 15 (wathever the second numbers are) one. There are projections size tables that exist, maybe you should have a look to see if the size improvement worth the invest in your specific case (sorry, I am ot at home and cannot give you any link). I would say that in general, it does as a better lens gives you a better image anyway.
--------------------
Dominique
| IP: Logged
|
|
UBBFriend: Email this page to someone!
Printer-friendly view of this topic
