24-70mm Blurry Images Horror Stories

1/100th F/3.2 ISO 1000
Shook the camera same as before

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haibane wrote in post #9511163
I don't own a tripod.

Well, after seeing those shots I would humbly recommend you buy yourself one. But don't take it from me,...I am the guy shooting 1/20 with a f/2.8,...remember?

haibane wrote in post #9511196
1/100th F/3.2 ISO 1000
Shook the camera same as before

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That's much better. Good job.

Juan Huerta wrote in post #9511201
Well, after seeing those shots I would humbly recommend you buy yourself one. But don't take it from me,...I am the guy shooting 1/20 with a f/2.8,...remember?

Why would I buy one for that? people move faster than 1/20s and there is plenty of light to allow this image to be shot at a higher shutter speed. Also I can use a flash at any point to "Stop" the action

Juan Huerta wrote in post #9511206
That's much better. Good job.

So I'm confused. Does this demonstrate the camera shake rule of using 1/(focal length) in order to get the shot, or do you still believe that 1/20th or even your 1/60th was an appropriate shutter speed?

Juan Huerta wrote in post #9510974
everybody with a camera and a computer thought that sending me a new way to test the lens was going to erase the nightmare of KNOWING that the lens had, indeed, big problems with AF, electrical...etc.

I sent you an old an proven way to test your lens.
Unfortunately that test procedure does not work for nightmares

Juan Huerta wrote in post #9510974
I MUST be able to use a lens hand held, regardless of anything possible.
And if the solution is being stuck with certain shutter speed, or confine myself to a wall or door frame or a tripod, then that lens is not for me...

Then blame yourself. Why did you buy a non-IS lens in the first place ?

Juan Huerta wrote in post #9510974
and the ones talking about so much success are, for sure, not telling all the truth, keeping some little "embarrassing" secrets...that's all.

Successful people don't have embarrassing secrets.
They never blame the lens, they never insult who tries to help.
They know their equipment and how to get great shots even with crappy cellphone cameras.

Stop whining and show yourself you can handle this pretty naive problem.

bohdank wrote in post #9507462
1/20s.... why are we even debating whether the lens is at fault.

and it was hand held

Juan Huerta wrote in post #9502204
OK, I took sometime to come up with some sort of "standardized" test for both lenses on my 40D body. For that, I decided not to monkey around and let the camera decide under the "some light" conditions of my kitchen. Here you are. By the way, thank you to all the ones adding their two cents into this. Lloyd, I checked your stuff out and you are one awesome wedding photographer; I also appreciate your input.

This thread bothers me. I too have had the 24-70 for roughly 2 years and think its my favorite lens of all time. I even dropped it once on my table from 4 feet up, shattering the filter and still shoots like the day i got it.

Why are you comparing the 24-70 at 2.8?????

Another thing is, if your going to run tests, u HAVE to put it on a tripod. How do u know if the first shot was held as steady as the second???
In order to put down a lens you have to know how to run a test. In my opinion you dont.

Ive included a video to help you out. Do exactly like the video shows u, and repost your test shots. I really want to see the results when done correctly.http://www.youtube.com​/watch?v=HS0hlQ9lSps


Im starting to think this is user error and that theres absolutely nothing wrong with your lens.

I MUST be able to use a lens hand held, regardless of anything possible. And if the solution is being stuck with certain shutter speed, or confine myself to a wall or door frame or a tripod, then that lens is not for me...and the ones talking about so much success are, for sure, not telling all the truth, keeping some little "embarrassing" secrets...that's all.

This Statement tells me that when you bought this lens, you did not research it properly in relation to your needs. Everyone who understands this hobby of ours knows.....that you cannot get a sharp picture with this, or any other, lens at 1/20th. at 70mm unless it has IS. That is not your fault, it is the laws of physics. We cannot alter the laws of physics, only abide by them. We do not have a choice in the matter. You keep stating that Canon said there was a fault in your lens, but they also said that they had repaired it, tested it, and confirmed the functions.

(Service Details:
Your product has been examined and it was found that the adjustment of the AF assembly was incorrect causing the auto focus to operate improperly. Electrical adjustment were carried out on the AF assembly and product functions were confirmed. Other inspections were carried out.)

In light of the above statements, you need to admit you made a mistake in thinking this lens would be suitable for your needs, and learn from it, instead of getting angry with us. We are not being aggressive towards you, but genuinely trying to help you with your problem.

Moderator's note:

This thread is spiraling down to a bad place. Please restrain from giving insults or making assumptions.

I love my 24-70 and my general rule of thumb is 1/2*(FL) shutter speed to get good pictures unless you have IS. 1/20s is just too slow for any human to hold steady. Even on a tripod, rubbing your finger on the post will show movement if you look through live view mode.

To put a positive spin to this thread, my 24-70 is flawless :P

sf_loft wrote in post #9512263
I love my 24-70 and my general rule of thumb is 1/2*(FL) shutter speed to get good pictures unless you have IS. 1/20s is just too slow for any human to hold steady. Even on a tripod, rubbing your finger on the post will show movement if you look through live view mode.

To put a positive spin to this thread, my 24-70 is flawless :P

That's not only a positive spin...that's HOPE, my friend.

Now, explain that rule again,...s-l-o-w-l-y,...please...

No sarcasm here. I am listening.

The old rule of thumb from the 35mm days was 1/focal length to avoid camera shake. So for your lens at 70mm you would need 1/70 sec exposure or faster to avoid blur from camera shake. With the advent of cropped bodied dslr's (such as your 2 bodies) it is generally accepted that the rule is modified to incorporate the crop factor of the camera body. In the case of Canon's, it is 1.6. So for 70mm on your camera bodies it would be 1/70 x1.6 so you would need 1/112 of a second to get a sharp shot. Keep in mind that these are guidelines. Some people are very steady and can push this by a stop or two, while others can't even get a sharp shot using this guideline as a bare minimum. This is why you were given a hard time for complaining about a handheld shot of 1/20 @ 70mm which was 2-3 stops slower than what would be called for.

I just got back from the local museum, and was using my 35f2 to take some photos of the artwork.
I didn't go below 1/60, since the lens has a view comparable to that of 56mm on film.

sf_loft wrote in post #9512263
I love my 24-70 and my general rule of thumb is 1/2*(FL) shutter speed to get good pictures unless you have IS. 1/20s is just too slow for any human to hold steady. Even on a tripod, rubbing your finger on the post will show movement if you look through live view mode.

To put a positive spin to this thread, my 24-70 is flawless :P

Beautiful shot, and the kind of results my 24-70 gives. I love this lens and anybody putting it down has to be doing something wrong. Or hasnt learned how to use it yet.