Projectors vary in the amount of keystone correction they can provide. For vertical (up and down) keystone correction, some offer a modest 12 degrees while others achieve as much as 35 degrees of correction. Some new projectors, such as the latest line-up of Hitachi projectors, also offer horizontal (side to side) keystone correction. The gateway to Panasonic PT-TW381R Series projector. Keystone correction range. Wireless Projector for iOS/Android™.8, LightPen3 Software (for Windows/Mac). XGIMI Z4 Aurora keystone correction demonstration. Vertical +/-30 degree, Horizontal +/-30 degree. There’s not always a perfect place for your. Auto keystone correction detects the tilt of the projector when placed on a flat. USB Plug 'n Play instant setup - compatible with Windows and Mac.

A Handy Feature for Presenters

Road warriors have to present in unknown environments on a regular basis. Whether they are presenting to a small or large audience, in a room with a screen, or improvising with a wall, one of the most frequent and frustrating problems is keystoning.

What is Keystoning?

'Keystoning' occurs when a projector is aligned non-perpendicularly to a screen, or when the projection screen has an angled surface. The image that results from one of these misalignments will look trapezoidal rather than square. A distorted image is a distraction most presenters want to avoid. However, in some cases, there is nowhere else to place the projector. So what can you do?

Early projectors did not have keystone correction features. Projectors were usually found in fixed installations, so furniture and screens could typically be moved to accommodate. As projectors became lighter and more portable, the demand for an easier solution grew.

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Manual Keystone Correction

Today, there are two methods of keystone correction, manual and digital. Manual keystone correction is essentially a physical adjustment to the lens of the projector so that it projects at an angle higher or lower than it would be if it were on a flat surface. The manual adjustment works well in some situations, but cannot eliminate horizontal keystoning. The projector also needs to be far away from the screen to achieve results. Mixmeister 7. 7 keygen. Not good enough you say? Read on..

Digital Keystone Correction

LCD and DLP™ projectors are both digital display devices. Data such as a PowerPoint presentation sent to a projector is digitally converted and scaled. Vlive app. By adding a special, selectable, algorithm to the scaling, some new projectors are able to alter the image before it reaches the projection lens. The result is a squared image, even at an angle. This allows presenters more flexibility when setting up their projector in variable environments.

Degree of Correction

While keystone correction is a handy feature for road warriors and other portable projector users, it does not produce an ideal picture quality. Scaling inside the projector creates a slightly distorted image, particularly at the sides of the screen. In a long-term installation, lens shift is preferred to keystone correction.

PT-TW381R	PT-TW380
Projector type	LCD projector
LCD panel
Panel size	15.0 mm (0.59 in) diagonal (16:10 aspect ratio)
Display method	Transparent LCD panel (x 3, R/G/B)
Drive method	Active matrix method
Number of pixels	1,024,000 (1280 x 800 pixels) x 3
Light source	230 W x 1 lamp
Light output^*1	3,300 lm
Lamp replacement cycle^*2	Normal: 10,000 h/Eco: 20,000 h/Quiet: 10,000 h
Filter replacement cycle	Normal: 5,000 h/Eco: 6,000 h/Quiet: 10,000 h
Resolution	1280 x 800 pixels
Contrast ratio^*1	20,000:1 (All white/all black, Iris: On, Image mode: Dynamic, Auto Power Save: Off, Daylight View: Off, Lamp control: Normal)
Screen size (diagonal)	1.27–2.54 m (50–100 in), 16:10 aspect ratio
Center-to-corner zone ratio^*1	85 %
Lens	Fixed zoom, manual focus lens, F = 1.8, f = 6.08 mm, throw ratio: 0.46:1 (Projection distance: 0.80 m [2.62 ft] for 80-inch image)
Keystone correction range	Vertical: ±15 ° (Auto, Manual), Horizontal: ±15 ° (Manual)
Installation	Ceiling/desk, front/rear
Terminals
HDMI 1 IN/HDMI 2 IN	HDMI 19-pin x 2 (Compatible with HDCP 1.4, Deep Color), Audio signal: Linear PCM (Sampling frequencies: 48 kHz, 44.1 kHz, 32 kHz)
COMPUTER 1 IN	D-sub HD 15-pin (female) x 1 [RGB/YP_BP_R/YC]
COMPUTER 2 IN/1 OUT	D-sub HD 15-pin (female) x 1 [RGB/YP_BP_R] (Input/output switching)
VIDEO IN	Pin jack x 1
AUDIO IN 1	M3 (L,R) x 1
AUDIO IN 2	Pin jack x 2 (L,R)
AUDIO OUT	M3 (L,R) x 1 (Variable)
LAN	RJ-45 x 1 for network connection, 10Base-T/100Base-TX, PJLink™ (Class 2) compatible
SERIAL IN	D-sub 9-pin (female) x 1 for external control (RS-232C compatible)
USB	USB Type-A (for Memory Viewer/Wireless Module [ET-WML100/AJ-WM50 series^*3]/Power supply [DC 5 V/2 A])
Mini USB	x 1 (Mini-USB connector for interactive function)	—
Power supply	AC 100–240 V, 50/60 Hz
Power consumption	300 W
Cabinet materials	Molded plastic
Built-in speaker	10 W monaural
Operation noise^*1	Normal: 38 dB, Eco: 35 dB, Quiet: 30 dB
Dimensions (W x H x D)	335 x 134.1^4 x 329 mm (13 3/16˝ x 5 9/32˝^4 x 12 15/16˝ )
Weight^*5	Approx. 3.9 kg (8.6 lbs)
Operating environment	Operating temperature^*6: Normal use: 5–40 °C (41–104 °F) at altitudes less than 1,400 m (4,593 ft); 5–35 °C (41–95 °F) at altitudes of 1,400–2,700 m (4,593–8,858 ft); Operating humidity: 20–80 % (No condensation)
Applicable software	Multi Monitoring & Control Software, Early Warning Software, Logo Transfer Software, Presenter Light Software (for Windows^®)^7, Wireless Projector for iOS/Android™^8, LightPen3 Software (for Windows/Mac), Whiteboard Software (for Windows)	Multi Monitoring & Control Software, Early Warning Software, Logo Transfer Software, Presenter Light Software (for Windows)^7, Wireless Projector for iOS/Android^8
Terminals PT-TW381R
PT-TW380

PT-TX440	PT-TX350
Projector type	LCD projector
LCD panel
Panel size	16.0 mm (0.63 in) diagonal (4:3 aspect ratio)
Display method	Transparent LCD panel (x 3, R/G/B)
Drive method	Active matrix method
Number of pixels	786,432 (1024 x 768 pixels) x 3
Light source	230 W x 1 lamp
Light output^*1	3,800 lm	3,200 lm
Lamp replacement cycle^*2	Normal: 10,000 h/Eco: 20,000 h/Quiet: 10,000 h
Filter replacemen

Projector Keystone Correction Software Mac