Is it good for a novice to practice photography with a Canon 50D with a Dragon 17 50mm 2 8 lens?

Not so good. 17-50 portraits are no advantage. The aperture is only, and it is only 50mm.

Rather than this, it is not as cheap as 18-55IS+50, and it is better than this set.

There is a very classic saying to remember, that is, there is no need to use a large aperture for standard change, and you will be able to slowly experience it later.

The Tamron 17-50 is available in two versions, the A16 and the B005 stabilization, with the former having high sharpness and usable aperture, and the latter having slightly lower sharpness at the edges, but with better color.

This head is still okay for portraits, after all, the aperture in the zoom head is the largest (except for Oba's), which is still very good for indoor low-light shooting, of course, the best is the large aperture fixed focus, such as the cheap and large bowl of 50 fixed.

A16The color is a little faint and needs to be post-processed, and the lens workmanship is a little rough, but the cost performance is still very high, and the workmanship of Canon's lens at the same price is not very good.

There is no need to use a wide aperture for standard change.

The second floor is very good, and I agree with him, that it's not as good as the last 18-55is+50

Because you're going to shoot ambient portraits, you don't need to have a big aperture.

Pretty good and reasonable. Practice first, and then become proficient in red circle shots.

It is said that the standard change does not need to have a large aperture is the person who has not made the standard change to a large aperture, and the same focal length and aperture Tamron 17-50 is still much better than the sleeve. A constant wide aperture will also help you with an external flash!

My words based on practical experience must be reliable. First of all, let's talk about the difference between the Tamron 17-50 and the Canon 24 fixed coke, the Tamron 17-50 is the deputy factory head, and the Canon 24 fixed coke is the brand head, which is naturally different in terms of technology, quality, and **, and the Canon 24 fixed focus is better than the Tamron 17-50. Of course, the Canon 24 prime is a bit more expensive.

Secondly, the zoom head is more flexible when shooting, and it is an advantage to zoom in on the long shot or the subject, which is also a disadvantage, and all zoom will affect the image quality, which has been repeatedly demonstrated by photography experts. For example, Tamron 17-50, when shooting landscapes, if you use 17 terminals, the imaging quality will be better, if you use 50 terminals, the imaging quality is worse than that of 17 terminals, poor imaging quality means poor image quality.

Thirdly, the Tamron 17-50 is different from the Canon 24 fixed focus, the Tamron 17-50 is used to shoot landscapes, and the Canon 24 is used to shoot portraits, individuals, and so on. It is said that the image quality of these two heads is good and complements each other, it is important to master the performance of the lens, and it is even more important to give full play to the function of the lens and solid photography skills.

The correct solution is:

Learning photography can give you the most significant improvement in image quality. Including how to shoot in the early stage, and how to deal with the software in the later stage**.

Comparatively speaking, the difference between the best and worst lenses is not one-tenth as much as the former.

In addition, all prime lenses will have a significant improvement in image quality in this focal length, and there are 17-40mm f-4 (5100 yuan), 17-55 F yuan -35 F yuan and a little more than 35 F yuan in zoom lenses).

I've used 40d, and the current equipment in my hand is exactly 450d+17-50, if you simply talk about the effect, it's definitely 50d

First of all, the 50D is equipped with a relatively high practical ISO (ISO

Noise at 1600 is slightly less than at ISO 800 at 450D), secondly, for shooting dynamic portraits, especially for models with natural and fleeting expressions, the success rate is very high, and secondly, 50

In color and sharpness than 17-50

It should be slightly better, and the color is slightly reddish.

However, in most cases (unless you're shooting privately, one-on-one with the model), the 17-50 zoom is definitely easy to move, it is equivalent to the very common focal length of 27-80 on the 50d and 450d, and the constant aperture is not as good as the 50

But it's basically enough. And 17-50

The closest focusing distance is only, and you can get closer when shooting small objects.

Although it is not equipped with an ultrasonic motor, the focusing speed is still a cut faster than that of the 17-50.

So, if you plan to upgrade in the future, then the first 50D+50 is more suitable, if you rely on this configuration for a long time, then 450D+ is obviously more suitable for you, if the budget is sufficient, you can consider upgrading to the VC version (i.e. B005), with image stabilization, in the case of insufficient lighting, the success rate of shooting is higher (of course, if you shoot portraits indoors, it is recommended that you at least consider configuring a flash, whether it is domestic with TTL or the original factory).

How to say it ... The 50D is indeed a little better, but the density of pixels makes it impossible for the 50D to perform very well at small apertures (tests have shown that 50D diffracts when the aperture is small).

The lens is definitely better than 17-40, but the practicality is not as good as that of 17-85

17-40 is a standard scenery head, if you shoot portraits, the focal length is too short, not suitable, unless you just take some scenery or something when you travel, basically don't take portraits, that's okay.

If you want to put on a full set in the future, you can add another 85

Combined with 17-40, the scenery portrait is enough.

The best advice is to forget about the canon...

Now consider D80 + Silver Wide (18-35) +24-85 or 24-85 for Tamron 28-75

The advantage of this combination is that the imaging is excellent, suitable for landscapes, portraits, and you can also save a lot of money, if it is a Tamron one, a total of about 8000 can be done. And the lens can be used in full frame. However, the disadvantage is that the focus is slightly slower, the main reason is that the D80's body drive is not strong, and when you wait for the full frame, the speed will be much faster.

According to your configuration, if you match 17-50:, then your Canon 17-85 head is basically rarely used, a bit of repeated investment, if the portrait, according to your configuration, it is recommended to go on 50:, of course...

It depends on your budget, but if you have enough budget, it is recommended to go up to 85: at this level, portraits work better.