Lantern portrait photography

The blur effect of these two lenses is average ... because both lenses are variable aperture lenses, and the aperture is not large. In order to get better background blur effect, a large aperture is necessary.

In terms of picture quality, 15-45 is definitely better than 18- 150. Because its zoom ratio is smaller.

But 15-45 has a wider wide angle and better scenery. The telephoto of 18- 150 is longer and more powerful.

How to choose depends on your own shooting needs.