How to distinguish the quality of a used 16 35 Nikon lens?

1. The detection lens mainly looks at cleanliness, optical axis and color;

2. Cleanliness detection method: 16-35 There is an aperture lever at the tail interface of the lens, open the aperture blade by hand by dialing the lever, and you can detect whether there is dust inside the lens against the light source.

3. One of the optical axis detection methods: conditional shooting of the standard board, unconditional shooting of newspapers, maps, etc. The newspaper is laid flat on the wall, tabletop or floor, the camera is perpendicular to the newspaper, and the four corners of the image are observed after shooting.

It is normal that the image plasm of the four corners will be a little worse than that of the center, but the image quality of the four corners should be the same and there can be no difference. If the left side is blurred than the right side (or vice versa), the optical axis is not correct;

4. The second detection method of the optical axis: place a still life on the desktop, place a newspaper or magazine or map behind the still life, and see the bokeh of the bokeh at the maximum aperture close-up. Both resolution and bokeh are related to the optical axis, and the optical axis is not correct;

5. The rest depends on the appearance and color, and the most important thing is to see whether the blade opening and closing is normal when adjusting the aperture of each gear; The second is whether the thread in front of the lens is damaged, which is needed to use the filter; The third is to check whether there are traces of the screw mouth at the end of the lens, and the description of the traces is disassembled.

First of all, see if there is a problem with the appearance.

Secondly, install the lens on the body and actually test shoot to see if the use status is normal.

After testing it in this way, you should be able to identify whether there is a problem with the lens.

A few points: second-hand lenses, the water is very deep.

If you have the ability to discriminate, you can get involved.

If you don't have the ability to do this, it is absolutely not enough to rely on what you have heard and seen the experience of others. In this case, you can't get involved in the field of second-hand lenses!

If it's an acquaintance who sells lenses, you can rest assured.

If it's a raw person selling lenses, I'd rather not buy it than be gullible!

Finally, someone asks a master for help, which is actually not reliable......There are times when the master looks away. Moreover, the favor that is put in this way is more expensive than the lens, and it is not worth ......

At this time, it is better to go straight to buy a new lens!

Industrial products, the data is very good-looking, Nikon's special lenses are used a lot, but the quality of optical glass is not high, and it is easy to overflow when shooting highlights, and the color is ordinary. The minimum aperture is only 22 in the case of a maximum aperture of 4.

The new Jinguang, a good lens, the focal length is appropriate, the cost performance is high, VR makes up for the shortcomings of F4, and improves the production rate of dark light. Overall more practical than large bulbs.

I now d7100 with this....I kind of came up with the idea of changing to full frame....Do you want it?

There are a lot of advantages,Mainly talk about disadvantages:Fine aperture,Zoom will stretch a section,In addition, it's a micro motor,But it still depends on the user's level,The color is more pleasing,It's not difficult to produce a good film,It's much stronger than the real pseudo-gold circle 24-120。

I use this head to shoot the scenery, after all, the focal length is there.

If you want to shoot with an ultra-wide angle, there are two heads in total: 1424 1635

Compared with 1424, the biggest advantage of this head is that it can be directly applied to the filter, and I shoot scenery generally nd is always available.

1424 must be on the filter bracket, a set of lee is often 3000, and a domestic set has to be about 1500. And the filter holder is too cumbersome to disassemble.

There are also disadvantages, the biggest disadvantage is vignetting control and distortion, especially at the 16mm end, and the aperture is fine, because generally I am F8-F11. Anyway, landscapes rarely use wide apertures.

So in the original head, if there are more meters, buy 1424 high filter frames, and if there are fewer meters, 1635 is enough for shooting, and both color and sharpness are worthy of the price.

In the head of the deputy factory, there should be only Tuli doing ultra-wide zoom, It should also be a 1635 f4 head, which is more meaty, **cheaper.

How does it work? Of course, it can't be used on a Canon SLR. Twist onto the Nikon DSLR, then turn it on, and select Auto mode.

Take it out and pat it more This focal length is suitable for scenery and humanities.

16-35 4 wide-angle zoom head, plastic lenses, the first two years are okay, the life cycle of the lens is not long.

This is the normal aperture value.

The size of the file accompaniment representation method, 1: is commonly known as the f hand god, the latter if the diagonal line of potatoes stupid bar.

If it is omitted, it is not a standard representation. >1:22。

Compared to the two, the 16-35 is definitely more suitable for you, and the focal length above 35mm is not so convenient for indoor scene photography, unless you are shooting portraits or still life close-ups indoors.

If you are so entangled in the lens, it means that there should be no special preference for the focal length, or that the preferred focal length is not within this range, so it is more appropriate to choose a lens with a relatively large focal length coverage such as 16-35 (the wide-angle end should not be so wide, such as -35, etc.), and if you shoot more in the future, you will gradually have your own special focal length (such as 24mm, 21mm, etc., many people around me who often shoot these subjects you say prefer this kind of focal length, It's even used for daily hang-ups), and then think about changing the lens.

Based on your narrative, it's better to consider 16 35.