Plaintiff appeals as of right from an order granting summary disposition on the first two counts of plaintiff’s complaint alleging that defendants had invaded plaintiff’s privacy based on intrusions upon plaintiff’s seclusion and private affairs.
Plaintiff was employed by defendant Kelsey-Hayes Company in a supervisory capacity at its Jackson, Michigan, facility. Defendant Fred Graber was plaintiff’s supervisor. Defendant Kelsey-Hayes’ Jackson facility is comprised of several different buildings connected by a series of walkways and plaintiff travelled from one building to the next by bicycle. Plaintiff’s complaint was based on alleged injuries to his back, right elbow, and arm sustained from a fall from a bicycle on company property in the course of his employment on March 28, 1985.
Unbeknownst to plaintiff, defendants, suspecting that plaintiff was malingering, engaged a private investigating firm to investigate plaintiff and to attempt to determine the extent of plaintiff’s injuries. The objected-to activities include an investigator (1) observing plaintiff’s home from a parked car down the street from plaintiff’s house, (2) telephoning plaintiff "to determine whether anyone was home,” (3) walking past plaintiff’s home and observing plaintiff through a window where the curtains had not been drawn, (4) flagging down a truck — used to haul trash — as it left plaintiff’s residence and asking the occupants questions rela*233tive to plaintiffs health, and (5) posing as a process server for the purpose of looking around plaintiffs home as much as he could.
On April 6, 1985, the investigator parked his automobile about a thousand yards from plaintiffs home and observed plaintiff through an open window with a 1,200 millimeter camera lens. Plaintiff apparently moved around "freely.”
Defendants then engaged another investigator to "tail” plaintiff as he went to several doctors’ appointments. The investigator observed how plaintiff walked when he moved from the parking lots to the doctors’ offices.
Finally, on April 12, 1985, defendant Fred Graber sent a letter to plaintiffs personal physician attempting to solicit information as to plaintiffs condition and ability to return to work. In the letter, defendant Graber allegedly detailed the investigator’s efforts in observing plaintiff and stated that defendants were unsure whether plaintiff was actually injured or not. No reply was made by plaintiffs physician to defendants. Although plaintiff had a medical release allowing him to return to work on April 19, 1985, he did not resume his job.
Plaintiff alleged two counts of invasion of privacy based on intrusion upon seclusion, solitude, or into private affairs. In order to prove a claim of this nature, it is necessary to show (1) an intrusion by the defendant (2) into a matter in which the plaintiff has a right of privacy (3) by a means or method that is objectionable to a reasonable person. Lewis v Dayton-Hudson Corp, 128 Mich App 165, 169; 339 NW2d 857 (1983).
Pursuant to MCR 2.116(C)(10), we have reviewed plaintiffs factual allegations and the pertinent documentary evidence, giving the benefit of every reasonable doubt to plaintiff. See Hagerl v Auto *234Club Group Ins Co, 157 Mich App 684, 686-687; 403 NW2d 197 (1987), lv den 428 Mich 900 (1987). We find the trial court correctly granted summary disposition in favor of defendants as to both counts of invasion of privacy.
Under Count i plaintiff can show an intrusion. First, agents of defendants entered plaintiff’s home under false pretenses. Also, agents of defendants observed plaintiff through the windows of his home by the naked eye and with a powerful camera lens. Other jurisdictions have held that "window-peeping” is actionable. See Lewis, supra, p 168. Whether the intrusion is objectionable to a reasonable person is a factual question best determined by a jury. It may not be objectionable to peer through an open window where the curtains are not drawn, but the use of a powerful lens to observe the interior of a home or of a subterfuge to enter a home could be found objectionable to a reasonable person.
However, even if we find that looking into plaintiff’s window with the naked eye and with a powerful camera lens is an intrusion which would be objectionable to a reasonable person, plaintiff still cannot prevail. Plaintiff does not allege facts that show the intrusions were into matters which plaintiff had a right to keep private. Under Earp v Detroit, 16 Mich App 271; 167 NW2d 841 (1969), the intrusion must be into a matter in which plaintiff has a right of privacy. The defendants’ duty to refrain from intrusion into another’s private affairs is not absolute in nature, but rather is limited by those rights which arise from social conditions, including the business relationship of the parties. Lewis, supra, p 169. Defendants’ surveillance of plaintiff at his home involved matters which defendants had a legitimate right to investigate. Thus, in Earp v Detroit, supra, this Court *235recognized the right of the defendant employer to engage in investigation of an employee suspected of illegality committed in the course of employment. Also significant to the delimitation of the scope of privacy is whether the circumstances give rise to an expectation of privacy from the standpoint of the plaintiff. See Lewis, supra. Plaintiff’s privacy was subject to the legitimate interest of his employer in investigating suspicions that plaintiff’s work-related disability was a pretext. We conclude that plaintiff does not meet the second requirement of the intrusion into seclusion test. Defendant also has a right to investigate matters that are potential sources of legal liability. See Early Detection Center, PC v New York Life Ins Co, 157 Mich App 618, 630-631; 403 NW2d 830 (1986).
In Count n of his complaint, plaintiff alleges that defendant Graber mailed a letter to plaintiff’s private physician which attempted to elicit information from plaintiff’s physician that is within the physician-patient privilege. Plaintiff does not allege that his physician responded to or in any way supplied information to defendants.
The sending of the letter is arguably an intrusion by defendant and certainly information within the physician-patient privilege is a matter which plaintiff has a right to keep private. We cannot say that the sending of an unsolicited letter is obviously objectionable to a reasonable person. Combined with the fact that defendant received no information, privileged or otherwise, from plaintiff’s physician, these facts do not provide proper grounds for a cause of action for invasion of privacy by intrusion upon seclusion. See Beaumont v Brown, 65 Mich App 455, 462-463; 237 NW2d 501 (1975), rev’d on other grounds 401 Mich 80; 257 NW2d 522 (1977).
Affirmed.