Canon camera lens 17 85, and Tamron 17 50 lens which compares values

The 17-50 strength is constant, the aperture is placed at f4, the image quality is very good, and the 17-85 focal length is relatively wide, which is suitable for the hanging head, but the image quality is a little fleshy compared to the lens of the Tenglong.

Summary. Hello, glad to answer for you. with"di"The ultra-wide-angle zoom lens with (digital design) optical system can be used with both full-frame DSLR cameras and DSLR cameras with small image sensors.

When mounted on an DSLR camera at the APS-C sensor size, its focal length is equivalent to 28 55mm, covering focal lengths from wide-angle to standard lenses. It has a minimum object distance of 30 cm and remains constant throughout. This feature allows you to fully highlight your subject and capture impactful work.

Thanks to the use of three composite aspherical elements, various aberrations are suppressed to a minimum. As a result, the lens provides very good image quality.

Is it OK with the Canon 7D2 and Tamron lens 17-35?

Hello, I am inquiring for you here, please wait a while, I will reply to you right away You Lu Tang guessed, I am happy to answer for you. with"di"The ultra-wide-angle zoom lens of the optical system is suitable for both full-frame DSLR cameras and small-size image sensor DSLR cameras. When mounted on an DSLR camera at the APS-C sensor size, its focal length is equivalent to 28 55mm, covering focal lengths from wide-angle to standard lenses.

It has a minimum object distance of 30 cm and remains constant throughout. This feature allows you to fully highlight your subject and capture impactful work. Thanks to the use of 3 composite non-ball lenses, all kinds of aberrations are suppressed to a minimum.

As a result, the lens provides very good image quality.

I hope the above is helpful to you If you are satisfied with me, please give me a thumbs up

Each has its own advantages and disadvantages.

Judging from the imaging effect:

1. If the aperture is fully open, the 17th end of the Tamron can be tied with the 17th end of the Canon, and the 50th end is not as good as the Canon;

2. If the aperture receives 4, the two ends of the dragon can be tied with the Canon, and the center of the 50 end is even slightly better (the main focus of the shooter is the center);

From the optical level:

The characteristics of this head of Tenglong are very interesting,17The end is okay (it is easier to make a wider aperture at the wide-angle end),50The image quality from the end to F4 is completely two levels,The center of F4 is definitely at the level of the red circle,Even better than the small ternary full open F4 (of course,Canon 1755 is also a dry turn over the red circle of the small ternary level,Helpless born with an S);

There is indeed a gap between the optical level of Tamron and the Canon ratio, and the maximum aperture of the zoom lens is also f4, and there will be a significant drop in image quality if you do it further, but the advantages of ** are obvious, so the advice for you and the majority of friends who have problems is:

Summary: If you use a lot of telephoto ends, such as shooting wives and babies, it is recommended to still Canon 17-55, or even 24-70, and you have to buy it if you grit your teeth; If you are keen on landscape and humanistic photography, there are no high requirements for a large aperture, 17-50 is absolutely cost-effective, and there is no problem with hanging up.

I have Tenron's B005, which is the 17-50 anti-shake version, and I've used Canon's 17-55, and the machine is 50D, so I'll give you an answer:

Judging from the imaging effect:

If the aperture is wide open, the 17th end of the Tamron can be tied with the 17th end of the Canon, and the 50th end will be overturned by the Canon;

If the aperture is received at 4, the two ends of the Tamron can be tied with the Canon, and the center of the 50 end is even slightly better (the center is mainly seen when shooting);

The characteristics of this head of Tenglong are very interesting,17The end is okay (it is easier to make a wider aperture at the wide-angle end),50The image quality from the end to F4 is completely two levels,The center of F4 is definitely at the level of the red circle,Even better than the small ternary full open F4 (of course,Canon 1755 is also a dry turn over the red circle of the small ternary level,Helpless born with an S);

There is indeed a gap between the optical level of Tamron and the Canon ratio, and the maximum aperture of the zoom lens is also f4, and there will be a significant drop in image quality if you do it further, but the advantages of ** are obvious, so the advice for you and the majority of friends who have problems is:

If you use a lot of telephoto ends, such as shooting wives and babies, it is recommended to still Canon 17-55, or even 24-70, and you have to buy it if you grit your teeth;

If you are keen on landscape and humanistic photography, there are no high requirements for a large aperture, 17-50 is absolutely cost-effective, and there is no problem with hanging up.

At the moment I am 17-50 + 35is + isxxb, humanities-oriented, shooting people with fixed focus, so it is completely sufficient.

In terms of image quality, it won't either, but the other focus workmanship and appearance are far from perfect.

**Putting it there still needs to be said.

Recommend the original factory, absolutely different quality.

There are the following differences:

1. Differences.

Canon lens 15-85** about: 5999 yuan; Canon lens 17-85** about: 4223 yuan;

2. Filter size.

Canon lens 15-85 filter size: 72mm; Canon lens 17-85 is the filter size: 67mm;

3. Maximum aperture.

The Canon lens 15-85 maximum aperture is; The maximum aperture of the Canon lens 17-85 is:;

4. The number of diaphragm blades.

The number of blades in the 15-85 aperture of the Canon lens is: 7; Canon lens 17-85 aperture blade count: 6;

5. Focal length range.

Canon lens 15-85 focal length range: 15-85mm; Canon lens 17-85 focal length range: 17-85mm;

6. Maximum magnification.

Canon lens 15-85 maximum magnification: when using 85mm focal length) times; Canon lens 17-85 maximum magnification: x;

7. Viewing angle range.

The angle of view of the Canon lens 15-85 is: horizontal: 74 degrees 10 minutes - 15 degrees 25 minutes, vertical:

53 degrees 30 minutes - 10 degrees 25 minutes, diagonal: 84 degrees 30 minutes - 18 degrees 25 minutes; The angle of view of the Canon lens 17-85 is: horizontal:

68 degrees 40 minutes - 15 degrees, vertical: 25 degrees 48 minutes - 10 degrees 25 minutes, diagonal: 78 degrees 30 minutes - 18 degrees 25 minutes;

8. Lens diameter.

The Canon lens 15-85 lens diameter is; The Canon lens 17-85 lens diameter is;

9. Lens weight.

Canon lens 15-85 lens weight: 575 (lens only) g; Canon Lens 17-85 lens weight: 475g;

1. The maximum aperture is not the same.

The Canon lens 15-85 maximum aperture is; The maximum aperture of the Canon lens 17-85 is:;

2. The focal length range is different.

Canon lens 15-85 focal length range: 15-85mm; Canon lens 17-85 focal length range: 17-85mm;

3. The number of diaphragm blades is different.

The number of blades in the 15-85 aperture of the Canon lens is: 7; Canon lens 17-85 aperture blade count: 6;

4. The sharpness of the wide angle is not the same.

Canon lens 15-85 24mm wide-angle distortion is small and sharpness is good; The Canon lens 17-85 has noticeable wide-angle distortion and poor sharpness.

5. **It's different.

Canon lens 15-85** about: 5999 yuan; Canon lens 17-85** about: 4223 yuan;

6. The range of viewing angles is different.

Canon lens 15-85 angle of view range: horizontal: 74 degrees 10 minutes - 15 degrees 25 minutes, vertical: 53 degrees 30 minutes - 10 degrees 25 minutes, diagonal: 84 degrees 30 minutes - 18 degrees 25 minutes;

The angle of view of the Canon lens 17-85 is: horizontal: 68 degrees 40 minutes - 15 degrees, vertical: 25 degrees 48 minutes - 10 degrees 25 minutes, diagonal: 78 degrees 30 minutes - 18 degrees 25 minutes.

I haven't used it, but in terms of focal length, 15-85 has an advantage, and the aperture of 17-55 is not used very often, and if you only use the aperture to produce a few excellent works in your life, it is even less worth it.

The most important thing is that the 15-85 head has a new optical design, which can be used as the hanging head of Canon's half-width SLR flagship 7D, which can be imagined its imaging quality. I've been using this for almost a year now, and it feels amazing.

15-85 is a 7D pullover.

17-85 is a 60d pullover.

So you should get the idea, right?

55 is an EFS lens, which can only be used on APS C-format machines, and 17 40 is an EF lens, which can be used on both full-frame and APS C-format machines;

2. On APS C format machines, 17 55 is better than 17 40, and the maximum aperture is one level larger;

The 55 is not an L-class lens because it is not a full-frame lens, and the 17 40 is an L-class lens, which does not mean that it is better than all lenses that are not L-class lenses;

4. If the landlord uses APS C format machines, such as 7D, 60D, 600D, etc., it is recommended to use 17 55, of course, it is more expensive.

Recommended 17-40,L head inside** is relatively cheap,I like the imaging very much,The sharpness and color are good,Especially the color。 The focus zoom feels good, it is a lens that is not too high-contrast, the distortion control is good, and the weight is light.

Of course, any installation can be used, especially if the latter is mounted on a half-frame, without any problems at all. A lot of people do the same.

However, when the former is mounted on a full-frame machine, there will be obvious vignetting, which no one actually uses.

Good luck.