Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Remote Release for Nikon D200

For quite some time I had been trying to buy the MC-30 from Nikon/dealers. This product was essentially impossible to obtain. I didn't want to buy the more expensive one for $100+, so bought this one for less than $20. It works great! All I needed was to activate the shutter without touching the camera, and this release does the job.