Canon 50D, 17-40, wants to go into the shed to shoot still life and people. I don't know what lens to match. I don't have much money, so I want a professional consulting major.

1740 is already a very good shot. There is no problem shooting still life and figures, and both landscape portraits and full-length portraits can be taken into account.

If you want to buy another lens, it is recommended to buy a 50mm fixed focus lens.

I don't know what your budget is If it is below 1000 (I believe that there are not so few people who can afford 17-40, but let's talk about it), I recommend Canon's 50mm F/ 1.8 portrait close-up with a large aperture to blur the background.

If it is less than 3000, 50mm F/ 1.4 from Sima is recommended. The reason why the original factory is not recommended is that the original factory's 50 1.4 is generally out of focus, and it is very rare for Sigma's 50 1.4 as a sub-factory to have the same optical quality as the original factory. This avatar can be used for full-length portraits and close-up portraits.

Also below 3000, 85mm F/ 1.8 is also very suitable for close-up portraits, but the viewing angle is much narrower than 50mm F/ 1.4, so if you want to take a bust, you have to retreat.

There is also Sigma 30mm F/ 1.4, but it is repeated with 17-40, so I won't introduce it.

Up to 6000, you can consider the new Budweiser100 mm f/2.8L. The macro effect of this head is very good, and it can also be sharp when taking close-ups of the face.

It depends on your actual situation and needs. After all, I don't know how to convert the price of "junior professional level". It is best to introduce it according to the focal segment.

Supplement:

Since there is already 50 1.8, there is no need to buy a lens if you don't want to upgrade the 50mm standard mirror.

If it goes up, it is a medium focus lens, which is converted into an equivalent focal length. The angle of view is very narrow, which is not suitable for shed shooting, unless your shed shooting is a close-up of a person's face. If it is a close-up, buy 85 1.8.