Lens malfunction
Sep 3, 2011 16:38:47 #
mady
Loc: Texas
the lens studders when ithe shutter button is pushed halfway and will not l shoot the picture. the camra and the lens are almost new and they have never been mishandled. the lens in question is a 100-400 mm Usm both are canon. and cryingly expensive .this is my husbends camra . i have a rebel T1i and i have no problems with it i LOVE MY REBEL :?:
This is one of my very first pictures with my Rebel
this picture is my progression as a amature wanna be
this pictuer is manual focus because i am trying new things in taking pictures.
Sep 4, 2011 08:22:52 #
chauncey
Loc: Rochester, Mi
I don't understand the word "studders". "Almost new", are they still under warranty. A canon lens, when it hunting for focus emits a whirring sound.
I don't see anything wrong with the images that would be indicative of a problem with equipment. Canon tech support is 1-800-OKCANON
I don't see anything wrong with the images that would be indicative of a problem with equipment. Canon tech support is 1-800-OKCANON
Sep 4, 2011 08:37:10 #
The longer lens will seem like its going back and forth but it is trying to focus.
I agree if you have a question contact canon either thru email or phone, they are really great. I've even called them on my older Canon 10D and they are more then happy to help.
They also have a section on their website for common questions
I agree if you have a question contact canon either thru email or phone, they are really great. I've even called them on my older Canon 10D and they are more then happy to help.
They also have a section on their website for common questions
Sep 4, 2011 08:50:54 #
I have the same lens, and it will kind of stutter if it is trying to focus, but unable to find something to focus on, and my cameras usually will not shoot if the lens has not been able to focus. There should be a focus confirmation light visible in the viewfinder (I believe a solid circle in the lower right, but check your manual) and this will blink if the camera was unable to focus. Try focusing on something with a lot of contrasting edges (a treeline a ways away, perhaps) and see if that will focus then.
Sep 4, 2011 08:54:49 #
Yooper you mentioned a very key step when dealing with problems with not just cameras but any electronics, computers etc. CHECK YOUR MANUAL.
Sep 4, 2011 08:57:33 #
jdtx
Loc: SA, Tx.
Canon does seem to not want to focus if it is too dark..try some shots where you know there is plenty of light and see if the same problem persists
Sep 4, 2011 10:21:07 #
chauncey
Loc: Rochester, Mi
Check your manual...what a novel idea...a slap head moment.
It will fully explain how the AF works, including, what is required to have it work at it's best.
It will fully explain how the AF works, including, what is required to have it work at it's best.
Sep 4, 2011 10:21:07 #
chauncey
Loc: Rochester, Mi
Check your manual...what a novel idea...a slap head moment.
It will fully explain how the AF works, including, what is required to have it work at it's best.
It will fully explain how the AF works, including, what is required to have it work at it's best.
Sep 4, 2011 14:32:08 #
When you push the shutter release button half way down that causes the camera to get focused. The 'shuddering' is not a defect, its the action of the lens being focused. The pic's submitted do not indicate any problems with the focus
or anything else for that matter that is apparent to me.
The various comments made about reading the manual are well intended reminders, even for experienced photographers.
or anything else for that matter that is apparent to me.
The various comments made about reading the manual are well intended reminders, even for experienced photographers.
Sep 4, 2011 15:59:37 #
mady
Loc: Texas
Thank you all ,the camra lens is not mine and ive confused you by putting up the pictures there are from my Rebel and i am a enthustiastic amature just learning everything at a very advanced age . i have contacted canon it seem the camra in question has to be checked out by a professional camra shop. this camra is a canon 50d with a 100-400 lens and it belongs to my better half who takes wonderful care of his camra the lens in question was a long,long,time in thought befor he finally after years got it. Thank you again,for your interest. and please know i am a rew amature and i will make many,many messes befor i become even worthy of this oppertunity to show what i am doing.
Sep 4, 2011 16:05:20 #
mady
Loc: Texas
Thank you ,for not making me feel dumber than dirt as i am very new at all electronic things. The lens is my better halfs and it was a dream for him that came true it was extravagent for us to even concider it ...however it will bring him mutch happiness at this late stage in our lives . i hope i do not hurt your eyes with my pictures that i will shurly post. i follow advise and i am not unable to take criticsm. thanks again
Sep 4, 2011 16:17:17 #
I'm sure Canon will be able to take care of any malfuntions with the lens &/or camera since apparently they are recent purchases. Hopefully they are both still covered on warranty's.
All of us are learning the many phases of digital photography, with the equipment and software related to it. Its a never ending process with the introduction of new products and systems constantly.
It looks like this is the right place to pursue that search for knowledge, and we all learn from the 'mistakes' or successes of others. Your photos indicate your doing very well in that regard, just keep moving ahead as you are. We will all be learning along with you. You have every reason to be confident in your Rebel! I'm not a Canon user, but have seen some excellent photos from users that are, amateurs (beginners?) included.
All of us are learning the many phases of digital photography, with the equipment and software related to it. Its a never ending process with the introduction of new products and systems constantly.
It looks like this is the right place to pursue that search for knowledge, and we all learn from the 'mistakes' or successes of others. Your photos indicate your doing very well in that regard, just keep moving ahead as you are. We will all be learning along with you. You have every reason to be confident in your Rebel! I'm not a Canon user, but have seen some excellent photos from users that are, amateurs (beginners?) included.
Sep 4, 2011 18:08:58 #
It sounds like the AF setting on your camera is on 'One Shot'. If the lense can't find focus, the camera won't take that shot. It also sounds like the studder you are encountering is that lense trying to focus. Change the AF setting (with the middle button behind the shutter button on top of your camera) to 'AL Servo' if your subject is 'moving'. Remember to push your shutter button down halfway and give the lense time to focus before you take the shot. That lense has a focusing distance switch that can be set for a specific distance. See the manual for the lense and it will discribe it's function.
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