Lens ideas for a rebel xsi

By Blaine
in Digital Camera Lab

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ironsight2000

Posted
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I am looking at this one

http://www.usa.canon.com/consumer/controll...p;modelid=11924

I have always wanted an IS lens. Also I want a lens that produces razor sharp pictures. I do not like soft pictures at all.

Image stabilization si a expensive way to get sharp images

try using a lower ISO

a smaller F/stop so a 11

this will make sharper images also you might want to look at a 50mm lens.

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Blaine

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Image stabilization si a expensive way to get sharp images

try using a lower ISO

a smaller F/stop so a 11

this will make sharper images also you might want to look at a 50mm lens.

I have a 50mm which is good, but autofocus could be faster. Also I get tired of having to step 50ft back in order to capture a building or landscape. Plus, I am getting blurry shots with it that I would like to eliminate.

Grand Master

giga Veteran

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Why don't you post some example images of your blurry shots that you're getting? Be sure to include the exif data.

The 24-105L is pretty sharp, but not very "wide" on crop camera like yours. If I wanted to capture landscape or buildings, I'd want 17mm at least. (The 50mm is a portrait lens.) Look into:

Tamron 17-50

Sigma 10-20

Canon 10-22

Experienced

o0moonman0o

Posted
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get the 17-55 f2.8 Is for ur xsi. as fine of a lens and useful at the same time on a xsi. to ironsight, shooting at f11 yes does give u a nice sharp image cuz most len's best performance is around f8-f11 but u are sacrificing dof as well as shutter speed by doing so. shooting low iso at f11 on a cloudy day will give u motion blur as supposed to gettin soft pics at shooting max aperture on a sunny day.

go to a camera store and get the sensor cleand also try doing a firmwar update

you should not get blur shots from any lens

u'll get blur from lens that are too slow in 2 ways.. 1 slow af, u'll fail to track the object u wanna track, 2 small aperture, u'll have low shutter speeds in less than ideal lighting.

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Blaine

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  • Author
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get the 17-55 f2.8 Is for ur xsi. as fine of a lens and useful at the same time on a xsi. to ironsight, shooting at f11 yes does give u a nice sharp image cuz most len's best performance is around f8-f11 but u are sacrificing dof as well as shutter speed by doing so. shooting low iso at f11 on a cloudy day will give u motion blur as supposed to gettin soft pics at shooting max aperture on a sunny day.

u'll get blur from lens that are too slow in 2 ways.. 1 slow af, u'll fail to track the object u wanna track, 2 small aperture, u'll have low shutter speeds in less than ideal lighting.

Thanks mate :D I think I will get this one (17-55 f2.8 IS)

Good choice guys?

Think its image quality will be better than my 55 f1.8?

Grand Master

giga Veteran

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  • Veteran
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Thanks mate :D I think I will get this one (17-55 f2.8 IS)

Good choice guys?

Think its image quality will be better than my 55 f1.8?

Your 50mm stopped down to 2.8 will be sharper than the 17-55 at 2.8. The 50 is a prime--sharpness (and speed) is the reason you buy primes.

Experienced

o0moonman0o

Posted
Posted

yup, the 50 1.8 @ 2.8 will be marginally sharper than 17-55 f2.8 IS but u don't have the mobility of a 17-55 f2.8 IS. on a crop body, 50mm is still too long for indoor low light. i would pick a 35 f2 or a sigma 30 1.4 instead. if u don't have a top standard zoom, i would recommand u get one.

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