Comparison of Sony SLR portrait photography parameters

Your question is a bit difficult to answer.

1, your picture involves photography. The most basic problem is the depth of field. You must first understand what depth of field is.

I won't explain the definition to you. There are three factors that affect the depth of field:

The longer the focal length, the smaller the depth of field.

The larger the aperture, the smaller the depth of field.

The shorter the object distance, the smaller the depth of field, and vice versa.

2. I don't know much about Sony machines. Let me explain the difference between 1.8 and 1.4. The luminous flux of 1.8 is twice that of 1.4. Based on the principle of depth of field, the depth of field of 1.4 can be smaller than that of 1.8.

As far as Canon is concerned, the lens of 1.8 is five times more expensive than that of 1.4. The bigger the aperture, the more expensive it is. If your economy is limited, I suggest that 1.8 is enough for beginners to practice.

You should read the instruction carefully, I can't explain it to you. The aperture and shutter of M gear need to be adjusted manually.

As a beginner, the handle doesn't have much practical effect. It is not recommended to buy a flash, mainly depending on what you are shooting at. If it is a large number of portraits or still lifes, I recommend you to buy an exercise.

I guess you don't have a driver, so you need a driver when you connect the camera to the computer. When you buy a camera, you should have a drive CD. I suggest reading the instructions and installing the driver can easily connect the camera with the computer.

You can add my friends if you have any questions, and I can try my best to help you.

Finally, I recommend you to read a book "SLR Bible", which contains some elementary skills that are very suitable for beginners to learn.

I hope it helps you!