aalok_gaitonde

<p>Hello June,<br>

I use the 100-400,and believe me it will give you fantastic results even at 400mm. The push pull mechanism helps too, and its not a problem at all. Actually, I find it better than the rotate-type telephoto zoom lenses.</p>

<p>Go for it!</p>

<p>Regards,<br>

Aalok</p>

Hurray!

I am just back from their center. They took the camera from me without any questions and cleaned it again!

I am happy with their service.

Regards,

Aalok

I took a picture in their office itself when I got the camera back. I saw the dust in that picture itself when I copied them to the PC. Then I shot some test shots (narrow aperture, pointing skywards) and the dust was clearly visible.

The interesting part is that the dust is not going off even with the built in sensor cleaning function.

Aalok<div></div>

Yesterday evening I got my camera back from Canon, I had given it to them for

sensor cleaning.

Now, after clicking some test shots I see more dust on the sensor. The previous

dust spots have gone, these are newer ones. I had clicked a test shot in their

office itself. And even in that picture, I can see lots of dust. Also, there is

something in the form of a thick line which can be seen in the pictures.

I am going to them again tomorrow as they are closed on Sundays. What do you

guys think they will say ?

Is the sensor damaged ? I am a very nervous man at the moment. Please help me out...

Aalok

Thanks a lot Jason for your prompt reply. It was indeed very helpfull and informative.

I have no option but to get the sensor cleaned. It has dust on it and it shows in the pictures.

Regards,

Aalok

Hello

I am planning to get the sensor of my 400D cleaned from a Canon Service Center.

Apart from that, I have heard a lot of people saying that they got their

cameras/lenses 'caliberated'. I have no idea what it means.

Can anyone please explain it to me ? And is it worth getting that caliberation

done ?

Regards,

Aalok

Yes, I am aware of the reviews, pros/cons and the push pull mechanism of the 100-400. Even I read about the dust problem being exaggerated.

I think I ll go with the 100-400.

Regards,

Aalok

Hello,

Either the 70-200 f/2.8L IS or the 100-400 f/4.5-5.6L IS would be my first

telephoto for my 400D. I mainly shoot airplanes/dogs/birds. I would love the

bokeh the 2.8 would provide, whereas on the other hand I would love to have the

longer reach of the 100-400. The drawbacks which matter to me are the shorter

focal length of the 70-200 and the dust problems with the 100-400.

I am totally confused. :( If the dust isnt a big problem with the 100-400, I

will go ahead with the it. (I live in India, lots of dust around).

What would you guys recommend ?

Regards,

Aalok

Hello

I have two questions;

1. Does Canon USA currently have any rebates/cash back on the 400D like they

have currently in Europe.

2. Is it OK to buy the camera/lens online from B&H ?

Regards

Aalok

Yes, Mumbai is dusty! Pollution and dust levels are very high.

Aalok

Oh yes, dust can enter the body while focusing. I never thought about this factor. Thanks for pointing it out.

Well, its my first encounter with sensor cleaning. Hence, you may find me a bit nervous :(

I am looking forward to buying the 17-40L F/4. This lens is said to be weather proof.

Regards,

Aalok

Hey

I just blew air on the sensor and took a few test shots as adviced.

I took a picture of my monitor at f/22.

I equalized the image and now I cant see any more spots on the image.

Has the dust gone ?

Aalok<div></div>

Hey

Thanks for all the answers. But why is it that everytime I shoot with the camera, I get dust spots even though I never change lenses ?

Regard,

Aalok

Hello,

I use the 400D with the 50mm f/1.8 lens and I also have the stock lens.

Last week, I had switched to the 18-55mm for a couple of shots. There wasnt any

dust on the sensor then. I replaced the lens with the 50mm f1.8 after those

pictures were taken.

Today, I shot with the same 50mm at the airport and now that I have copied the

images to the PC, I see 3 prominent dust spots in each and every picture. I

always turn the camera off once in a while while shooting just to induce sensor

cleaning. I did the same today, but the dust spots are the same in each picture.

Though I hardly change lenses, I get dust spots each and every time I shoot

with the 400D. What may be the reason ?

And now that the dust on the sensor is not being removed by the built in sensor

cleaning, should I take it to a camera shop to get it cleaned ? Or just blow

some air into it and check ?

Cheers from India,

Aalok Gaitonde

Hello

Which is the object that you are talking about ? Is your camera on AI Servo Focus ? Just check if it is....

Aalok

Thanks for your inputs people. I think I ll get the 17-40 f/4 L.

Aalok

Thanks you all for your answers.

Yes, the focal length is not a problem for me. 17-40mm is enough. I dont want anything ultrawide like the 10-22. Also, I would like to stick to Canon lenses only.

Regards,

Aalok

The 17-40 f/4L is a nice lens. How sharp is it ? The focal length is OK for me.

Regards,

Aalok

Hello

I recently posted a question about getting a lens for a wedding. After

considering the views of the photographers here, I dropped the idea of buying a

lens and flash just for the wedding. (I am not a professional)

Now, I need a lens for general landscapes and nature. I have a 400D with the

stock lens and a 50 mm f/1.8 prime. The former is far from sharp and the latter

is as sharp as it gets, but not wide enough.

So which is the lens that I shall consider buying ? The budget would be around

700-750$.

Aalok

Thank you all for your response.

Now, I think I ll probably drop the idea of buying the lens or the flash just for the wedding. Let the pro do it all.

About the B/W thing, I actually like the idea. I ll do that. Will it be done good with the existing apparatus ? I dont want anything spectacular, but it always feels good to have captured something yourself at such an event.

Regards,

Aalok

Thankyou all for your response. I would definately give him his space and wont intervene even a bit.

So which lens shall I consider buying ? I would be using it in the future as a wide angle lens for landscapes/nature etc. I want it to be a general purpose lens in the future.

Aalok

Ok great. Then I ll settle for a 4GB card.

Hey, for Mumbai, its Indian Rupees INR.

Aalok

Ok great. Then I ll settle for a 4GB card.

Hey, for Mumbai, its Indian Rupees INR.

Aalok