<p>Thank you all.<br /><br />I am not very conversant with calibration.<br /><br />I assume, that there should be extra hardware attached inside the mechanism of the Monitor which will communicate with the calibration gadget and software, which makes these few series of few models special as "calibratable" and thus costly.<br /><br />And Andrew Rodney was telling Benq PG240's technology is superior, hence it is more costly. Right?<br /><br />Now, to start with at a minimal cost, same time without sacrificing the very cause of calibrating process, can I buy a Monitor, VFM one, if it is existing at all, please ? <br /><br /></p>