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Help with a lens

Kristi2k

Kristi2k

Golden Member
I have the 40D and currently have the Canon 70-300 IS lens and the Canon 28-135 IS lens, I'm looking to purchase a wide-angle lens for landscape / skyscape shots. I have two choices that I'm really having a difficult time with:

EF-S 10-22mm f/3.5
EF-S 17-55 f/2.8

What I'm trying to determine (which is difficult without actually using either) is 10 too wide or 17 not wide enough? Here are a few shots that I have taken on a non EF-S lens at 28mm (44.8mm):

http://farm2.static.flickr.com...03532_2d003cbf62_b.jpg
http://farm2.static.flickr.com...44881_996b294320_b.jpg
http://farm2.static.flickr.com...36986_0dedaf6079_b.jpg
http://farm2.static.flickr.com...90492_5c8628919d_b.jpg

I like the fact that the 17-55 is good in low light settings as well but my not be good for a lot of DoF.
 
A low light capable lens with a fast speed can actually give you greater DOF. All you have to do is close the aperture and lower the shutter speed. That is when IS pays off.

Personally, I would go with the 10-22 EFS lens because it can give yiou better close ups of people at close ranges.

 
I would get the 10-22 as well; since you already have the 28-135, the 17-55 would be mostly overlapping. It is also the widest angle lens that you can currently get for a crop body at 16mm eq, until Sigma comes out with its 4mm.
 
Originally posted by: Jawo
I would get the 10-22 as well; since you already have the 28-135, the 17-55 would be mostly overlapping. It is also the widest angle lens that you can currently get for a crop body at 16mm eq, until Sigma comes out with its 4mm.
Click to expand...

:Q

4mm how much will that run?
 
The EF-S lenses focal distances are what they are with out the crop factor, they are special lenses for crop factor sensors. So the 28-135 is actually 48-180, the 10-22 is 10-22 and the 17-55 is 17-55.

I think what I'm going to do is rent the lenses before I buy one.
 
Originally posted by: Kristi2k
The EF-S lenses focal distances are what they are with out the crop factor, they are special lenses for crop factor sensors. So the 28-135 is actually 48-180, the 10-22 is 10-22 and the 17-55 is 17-55.

I think what I'm going to do is rent the lenses before I buy one.
Click to expand...

😕

The focal length detailed on an EF-S lens is the actual focal length, which DOES NOT CHANGE regardless of the camera body it is on.

However, on a body with an APS-C sized sensor, the EF-S 10-22mm will provide the equivalent angle of view to a 16-35mm focal length on a body with a 35mm sensor.

Similarly for the 17-55mm.

 
Originally posted by: Kristi2k
The EF-S lenses focal distances are what they are with out the crop factor, they are special lenses for crop factor sensors. So the 28-135 is actually 48-180, the 10-22 is 10-22 and the 17-55 is 17-55.

I think what I'm going to do is rent the lenses before I buy one.
Click to expand...

the 28-135 isn't an EF-S lens. on a canon crop body the image approximates one from a 45 - 216 lens on a 35 mm body. the 10-22, which is an EF-S lens, approximates a 16-35 lens on a 35 mm body. not sure where you got your numbers from.



sigma 4.5 mm circular fisheye, MSRP $1400
$899 at adorama

you'd have to de-fish it in software to get a rectilinear image.
 
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