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Laser Unit of CD-ROM-Drive

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Sebastian Schwandtner

Premium (World), Wuerselen

Laser Unit of CD-ROM-Drive

the picture shows the Laser unit of the CD-ROM drive my Laptop. I took the picture to evaluate the optical capabilty of the AF20-80 lens working together with screwed-on macro lenses. I used a 4 dioptre together with a 3 dioptre and a 2dioptre = 9 dioptres in total. I'am suprised at the quality of the picture. There are no significant fragmenting in the edges and a acceptable sharpness is given.

date: 2007-02-11
light: flashlight (look into the lens of the Laser Unit)
technique: tripot
processing: only pixel reduction and JPEG-compession

camera: Konica Minolta Dynax 5D
lens: AF 28-80 with 9dioptres macro lens
focal length: 80mm (switched to macor mode)
aperture: F/29
shtter speed: 1/125s
ISO-setting: ISO100

comment: I presented a cut off of the picture in the open FC-area