This is a used / pre-loved item, we do our best to uphold the quality of all our used equipment.The ELPLS04 1.74 -2.82:1 lens is a standard lens with a ratio of 1.74 -2.82:1.
The lens is compatible with 3LCD projectors made by Epson.
If you have any questions about the compatibility of ELPLS04 1.74 -2.82:1 with your projector model, please contact our sales team by email or phone.
How to find the right value?
Distance = Image width x Ratio.
Image width = Distance / Ratio.
Ratio = Distance / Image width.
f stands for "focal length". Ratio of focal length to aperture. Zoom lenses often have two values. The large apertures are described with small numbers and the small apertures with large numbers. A lens with a smaller focal length lets more light through.
Also projection ratio, ratio, throw. Is the ratio of the projection distance to the image width. Multiplying the number by the screen width is the distance between the projector and the screen. Therefore, the width of the screen can be calculated by dividing the screen distance by the number. If two numbers are given (for example: 1.5-2.5:1), it means that the projector has a zoom lens and the ratio can be changed within the given range.
SCREEN SIZE (diagonal).
Distance between two diagonally opposite corners.
Aspect Ratio, the ratio of width to height.
Number of pixels of the width and height of an image: e.g. 1920×1080.
With aspect ratio 4:3.
VGA (Video Graphics Array) 640 × 480 Pixel.
SVGA (Super Video Graphics Array) 800 × 600 Pixel.
XGA (Extended Graphics Array) 1024 × 768 Pixel.
SXGA+ ( Super Extended Graphics Array Plus) 1400 × 1050 Pixel.
UXGA (Ultra Extended Graphics Array) 1600 × 1200 Pixel.
With aspect ratio 5:4.
SXGA (Super Extended Graphics Array).
With aspect ratio 16:9.
HD 720 (HD) 1280 × 720 Pixel.
WSXGA (Wide Super Extended Graphics Adapter) 1600 × 900 Pixel.
FULL HD (2K. HD1080. 1080p) 1920 × 1080 Pixel.
QWXGA (Quadruple Wide Extended Graphics Adapter) 2048 × 1152 Pixel.
2k 2048x1080 Pixel.
4K-UHD 3840 x 2160 Pixel.
With aspect ratio 16:10.
WXGA (Wide Extended Graphics Array) 1280 × 800 Pixel.
WXGA+ (Wide Extended Graphics Array Plus) 1440 × 900 Pixel.
WSXGA (Wide Super Extended Graphics Adapter) 1680 × 1050 Pixel.
WUXGA (Wide Ultra Extended Graphics Array) 1920 × 1200 Pixel.
- manufacturer: EPSON;
- model: ELPLS04 1.74 -2.82:1;
- ratio: 1.74 -2.82:1;
- weight: 6;
This product is in refurbished condition.