Canon 40d want to change the full set of lenses

I use 50dI've used the 17-85 head before, and I feel that the performance is very average, and Canon's lens is like that. The difference between the red circle and the normal head is very large, but the 24-105 is not quite suitable for your body, and the 40D is ASP-C non-full-frame, and you will know that your wide-angle end is very subtle when multiplied by the coefficient, and it must feel difficult to use.

There will be no problem with the telephoto end in terms of focal length, but the combination of the 24-105 is a bit too large. Distortion and sharpness will have different degrees of influence, and then take into account that ** is not as good as Xiaobai's effect, of course, Xiaobai is more expensive, and heavier, it is somewhat inconvenient to carry, if you care more about these two points, you can consider Xiaoxiaobai. Of course, if you just want to switch to this lens, it's compatible with both wide-angle and telephoto.

24-105 is still very good.

The 24-105 is equipped with a non-full-width machine, and the wide-angle end is barely enough, so if it is really not enough, it can only be spliced. The telephoto end of the 105 is okay, of course, there is still a bit of a gap compared to Xiaobai.

The current ** is about 6900 7100 yuan.

It is recommended that the 17-40 red circle on the lz not only retains the wide angle but also takes into account the image quality, and the cost-effective scenery head is licensed 5200 yuan.

And 24-105 to 7000 or more.

First, it is best not to have that anti-shake head, IS has little effect on the wide-angle medium focus.

Second, if you have money, you should buy a red circle professional head, 17-40F 4 but 4800 yuan, the more popular imitation of regret 17-40 with header + small white (wide angle, portrait + telephoto).

A red circle, a white head and a fixed focus, no matter where the calendar is in the middle of the calendar, it will not fall.

Third, Canon's red circle is indeed the top, but the other dog heads are matched with nothing ... Ay.

Fourth, but 24-70

f Portrait. Or.

is also a good choice.

If you only have a head, why should you buy a camera with interchangeable lenses? ）2.Also, if you don't buy a wide angle (focal length *<30mm), group photo travel can be a problem.

3.Canon's problem with brushing lenses when buying an analogues is worse than that of Nikon.

Reasons why this type of problem can occur:

1. The trigger is out of sync. Change a few brands of wireless flash and studio flashing lights to try, set the minimum power output of the flash M gear when using the set-top light to light, if you can shoot the ** of the set-top light flashing and the studio light is not flashing, it means that the flash of the studio light has a delay.

2. Try with a slower shutter, from 1 30 1 125.

If you have changed several triggers and trigger methods and have this problem, then it is most likely that the camera's flash synchronization is wrong.

In addition, you can use the camera's built-in on-camera flash to set to M gear (flash M file) and try to shoot objects indoors (without flashing the studio light, and at the same time the camera sets the appropriate aperture, shutter 1 125) to see if it can be synchronized, if the set-top light can be synchronized with the M file, you should be able to use the M file to trigger the studio light. If the flash M-stop doesn't sync, it's definitely a problem with the camera.

Good luck and have a problem hi me.