I plan to start a prime lens, and I am currently optimistic about the scope of application of the 50

I use the A200 and the APS-C DSLR, and in my experience it's pretty good for portraits, with a 75mm-equivalent focal length, which is not much different from the traditional standard 85mm portrait focal length.

But I tried to shoot the landscape, but I really couldn't shoot it, the angle of view was too narrow, and I didn't have the feeling of a big scene like a landscape at all.

So if you want both a landscape and a portrait, Canon opts for a 35mmf2 lens that would be more suitable.

If it's 5D, then maybe it's all capable of scenery and portraits. In fact, many people shoot with 5D2+35L.

If you want to do it in one step, it is recommended to choose 35L, although it is more expensive, but 35mm is a must-have focal length whether it is APS-C or full frame.

If you want to shoot landscapes, forget it, it's still okay to shoot some humanistic documentaries or landscape sketches.

50 is better in terms of aperture and workmanship, but it has been on the market for so many years, and it has been passed on for the second generation.

And it is said that this head is not very useful.

It is recommended to buy it, it is very practical and affordable.

In addition, you can consider Sigma's 50, the caliber is larger than Canon, and the appearance is more domineering, but after all, it is a deputy factory, and individual differences are relatively large, so if you plan to buy it, you should choose it well.

It's enough to shoot scenery when traveling, after all, the focal length is 50mm (in 5D, 500D is 80mm), and the lack of wide angle makes it absolutely first-class to shoot people in any machine. In 500d, the scenery is recommended to still have a fixed focus of 16mm. If you make do with it, buy a Tamron A16, 17-50mm, landscape and portrait balance head, 35-50mm end portrait can also be compared.

50 portraits are good, cheap and practical, if you pursue the price, 35 is good, after all, the landlord is not a full-frame camera, the zoom can be in the landscape, 18-135 is good, you can also wide-angle, Sigma's 10-20 is very good!!

The landlord said that he didn't want to change the lens, and most of the lenses were applicable, unless it was the brand ...... that changed the camera

The zoom lens must be designed with the focal length in mind.

Imaging in all ranges, dispersion.

and so on, so the final product is selected in the best coordination scheme, but it is generally difficult to become the best scheme for a certain focal length, relatively speaking, prime lens.

There is no mutual containment in this aspect.

In other words, in order to take into account all focal lengths, the result of the compromise is that each focal length is not the best, and the fixed focus only does one focal length, which is naturally the best.

1.I don't understand the actual meaning of what you say, but what is the value of fixed focus? That is, it is sharper than zoom, and it can also achieve large apertures at a lower cost.

2.The specific focal length selection, depending on your needs, the full set of 50 belongs to the head, take humanities, full-body portraits; On APS-C, 50 is on the long side, close to 75 on the whole face, which belongs to the portrait head, and if you take a bust, the whole body has to retreat, and 90 is generally a big head or macro. According to your needs, the 50 headers of various manufacturers are generally doing well, and they are also the most affordable, so it is recommended to buy.

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

The shallower the blur, the more obvious it is, and there is no very specific data on this, but it is judged by the naked eye.

Nikon Canon generally chooses 50 for both companies, and it is absolutely impossible to go wrong, and the rest depends on the demand.

Due to the fact that the fixed focal length lens does not need to consider the zoom and the adaptation of the aperture to the zoom, the structure can be relatively simple, the sharpness and color of the film are far better than the zoom lens, and the maximum aperture can also be made larger, so as to achieve perfect bokeh out of focus, which is much more obvious than that, although the value is not much different, but the light transmittance is much larger! Open square relationship.

Because the fixed focus has restrictions on the composition, mainly relying on people moving around or cropping in the later stage, it is more convenient to choose a close-focus fixed focus head. Needless to say, the bigger the aperture if you have silver, the better, because the image quality is best when you have to close the aperture 1-2 stops smaller.

Which focal length lens to choose is mainly decided according to what subject you mainly shoot, if you are human, you can use it for portraits, 100 for macro, and at least 100 for long shots or animals. Of course, the wider the aperture, the better, and of course you have to choose according to your budget, as well as other things such as image stabilization, fast focus, etc. It is recommended that beginners practice with 50 or 50 first.

Portrait prime lenses of 50mm are better. 50mm has a certain bokeh effect, and it will not be like 35mm, which needs to be very close to produce a more satisfactory virtual aging. 50mm shooting portraits has a certain ability to narrate scenes.

Like 85mm, it's a bit narrow, especially the indoor grinding cover 85mm, most of which can only take half-length or headshots, and rarely can ** the environment.

The perspective of 50mm is more natural, it doesn't have a slight tension on the 35mm, and it doesn't have the slight compression of space on the 85mm. 50mm seems to be as plain as water as the human eye is swimming, and there is no "emotion" for ** from the perspective of view. Of course, there are also friends here who say that it is easy to have no characteristics, which is a common problem.

Precautions for choosing a lens for shooting portraits.

When shooting portraits, choosing a lens with a larger aperture can make people's ** more delicate; Moreover, in the face of a cluttered background, you can blur the background to make the picture cleaner and highlight the subject of the portrait; Large-aperture lenses are also more advantageous when shooting in low-light conditions. So when choosing a lens, choosing a large-aperture lens is the first choice. The focal length of the lens also has different options for portrait subjects, and it is best to shoot landscape portraits with a wide-angle and large aperture lens, such as 16-35mm, 35mm, etc.