Photography
With exposure objective focusing means, focusing aid, or...
Having in-focus threshold adjustable
Inventor
active
Camera device and method for taking photos
Electronic device with earphone
No associations
LandOfFree
Che-Hsiung Cheng does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Che-Hsiung Cheng, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Che-Hsiung Cheng will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-2254437