When Do I Need an Anamorphic Lens for a Curved Screen

by Elite Screens' Blog Team on June 7, 2018 with No Comments

Many people are not aware of the various properties of video screen aspect ratios. Simply put, aspect ratios define a rectangular screen’s shape. Aspect ratios define that for each unit of measurement for width, there are corresponding numbers of equal measurement in height. In other words, a 16:9 projector screen means that for every 16 units of lateral measurement, there will be 9 equal units of vertical measurement.

Video – Aspect Ratios https://elitescreens.com/elitetube/aspect_ratio_edu.mp4

*The discussion below is based on actual chat transcripts with the omission of any personal/confidential material to protect the customer’s privacy. An example in this case is to change the contact’s identification name/number to “Customer” or a generic name.

Transcripts:

[18:42] Customer: Hello
[18:44] Customer: Do you need an anamorphic lens to us curved screen Curve150H-A1080P3?
[18:44] Rick: Hello, I’d be glad to assist you with this.
[18:45] Customer: anamorphic for a 16:9 HDTV screen?
[18:45] Rick: No, this material is 16:9 format and does not require a lens. Anamorphic lenses are for 2.35:1 or 2.40:1 “Cinemascope”
[18:45] Customer: No pincushion issue then?
[18:46] Rick: Pincushion effect is a problem to widescreen formats but not HDTV (16:9). You can use the projector standard lens. As long you have the projector within the specification position and not over adjusting the focus/zoom setting. you are fine.
[18:47] Customer: You’re saying I shouldn’t be zoomed all the way out to fill the screen?
[18:47] Rick: Correct, if the lens is zoomed out, you will experience the pincushion effect.
[18:47] Customer: what is acceptable then?
[18:48] Customer: no zoom?
[18:50] Rick: If you able to position the projector in a distance where you don’t have to use the zoom excessively, for example if your projector specification gives you a throw distances between 12 to 15 ft away for a 150 inch. as long you are within the manufacturer specification you will be fine.
[18:51] Customer: I see….yes, my JVC is 16′ from screen and I need a full Zoom out to fill out 150″
[18:59] Rick: Different projectors perform in various degrees. I always recommend contacting the manufacturer on the particular performance specs.
[19:00] Customer: thx