After I knew how kind of measurement setup I will use, I was looking for companies which manufacture light measurement equipment like I wished to use. Then I remembered a company (Opsira GmbH) which I came across during my work in a light laboratory. I know that they manufacture CCD-camera measurement equipment and decided to send them a request for quotation for this measurement equipment.

Further I had to look for other manufacturers of light measurement equipment which manufactures the same kind of equipment in order to compare the respective equipments. In this connection my supervisor helped me, because he knows a distribution company (OPTE-E-MA Engineering GmbH) of light technical measurement systems which distributes systems like I wanted.

After some telephone calls and emails we received a quotation of a CCD-camera system from the company OPTE-E MA. Furthermore I received the quotation for the measurement system from the company Opsira.

The quotation for the light measurement system from the company Opsira was about $40,000. This was definitively too high for my budget. So I had to send a declination to Opsira. But the quotation for the light measurement system from the company OPTE-E-MA was within the plan of my budget of 8,000$ because they wanted about $7,100 for there system.

The big difference of the price between this both systems is because the system from Opsira is a laboratory system and the system from OPTE-E-MA is a mobile system. That means that the equipment from OPTE-E-MA is normally not for using in a laboratory because they don't have a direct connection to a measurement PC, but with some alternatives it is possible to connect and control it with a PC. Furthermore the equipment from OPTE-E-MA was a special offer because it was a discontinued model and a second hand article.

Before I decided for the OPTE-E MA system I made an appointment with the Chief Executive Officer of the company, because I wanted him to present their measurement equipment so that I could make a decision if I want use this equipment or not. After the presentation I decided that I wanted use this equipment and told to my supervisor that he should buy.