There are two kinds of objections. The first is due to a misunderstanding of the product benefit through lack of knowledge. Probe to find out what is unclear and answer it directly. The second type of objection is a perceived drawback. In the mind of the customer, the objection really exists.
Price is a common example.
Here you want to minimize the objection by introducing a series of benefits that together outweigh the prime objective. An analogy I often use is this. Then review all the features and benefits of the product, and include all the services of your company as well, because that's what the customer is also getting in return. These are the different attitudes that we as professionals must identify and deal with. But, as you can see, we can have a clear strategy to handle them.