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Archive 200510mm Vs 17mm FOV difference

  
 
speedbrakesout
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p.1 #110mm Vs 17mm FOV difference
Hey guys,

Being a sucker for wide angle I'm considering replacing my 17-40mm with something that would give me an even wider view, either the EF-S 10-22mm or the new Sigma 10-20mm.

But before selling my 17-40 for one of those I'd like to make sure the difference in FOV is significant. Could someone please post a sample of the difference in FOV with the EF-S 10-22 and with the 17-40mm.

Many thanks in advance,
Nick

May 22, 2005 at 09:17 PM
Lalfer
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May 22, 2005 at 09:31 PM
jeffmock
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p.1 #310mm Vs 17mm FOV difference
I don't have a good example to post, but the difference between the lenses is huge. On a 1.6x camera the FOV is:

10mm 73.7-degress vertical, 96.7-degrees horizontal
17mm 47.6-degress vertical, 67-degress horizontal

The 10-22mm is pretty amazing. Don't get rid of the 17-40mm though, it's a fantastic lens and one day it will become a wide angle very similar 10-22 on a full frame camera.

jeff

May 22, 2005 at 09:33 PM
jmardy
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p.1 #410mm Vs 17mm FOV difference
May 22, 2005 at 10:59 PM
Daniel Buck
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p.1 #510mm Vs 17mm FOV difference
for wide angle lenses, each MM really does count. A whole lot more than standard or telephoto lenses.
May 23, 2005 at 01:52 AM
Hrow
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p.1 #610mm Vs 17mm FOV difference
The 10-22 is an amazing lens.
May 23, 2005 at 07:42 AM
speedbrakesout
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p.1 #710mm Vs 17mm FOV difference
Thanks to everyone who replied. Now I know for a fact that I want to go wider. The problem: I will need to get rid of my beloved 17-40mm to finance the 10-22mm . Another solution is to wait to see some test of Sigma's new 10-20mm which comes at a lower price.
May 23, 2005 at 08:25 AM
Albert4321
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p.1 #810mm Vs 17mm FOV difference
jmardy, nice pics! Did you de-fish them?
May 23, 2005 at 08:25 AM
smaniscalco
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p.1 #910mm Vs 17mm FOV difference
Cool shots with the 10-22. I've got one coming from Dell with a plan to use it for a vacation and re-sell when I get home.
I know I'll want to keep it, but divorces can get soooo messy.
May 23, 2005 at 08:29 AM
moondigger
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p.1 #1010mm Vs 17mm FOV difference
Albert4321 wrote:
jmardy, nice pics! Did you de-fish them?


They weren't taken with a fisheye lens, so there's nothing to de-fish. (Answering for jmardy because he seems to be away from the forum.)
May 23, 2005 at 09:13 AM
Albert4321
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p.1 #1110mm Vs 17mm FOV difference
I understand it was not a fisheye lens. The sample image at 10mm did not exhibit barrel distortion. I wonder if it was correct by PTlens or some de-fish processing, or just the way this picture is.
May 23, 2005 at 09:23 AM
moondigger
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p.1 #1210mm Vs 17mm FOV difference
It's impossible to tell by casual inspection of that image whether it is exhibiting barrel distortion or not, since there are no straight lines near the frame edges.

In any case I have not had any noticeable barrel distortion with my 10-22, but then again I haven't used it to do architecture photography or to take pictures of anything with straight lines near the frame edges.
May 23, 2005 at 09:27 AM
mudlake
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p.1 #1310mm Vs 17mm FOV difference
Lalfer wrote:
http://www.canon-20d.com/wide-angle-lens-compare.php


That is quite a nice comparison of field of view! That 10mm REALLY makes a difference. I thought my 15mm fisheye was wide, but the 10mm is so much wider I can't believe it! Now I'm really dying for the Sigma 10-20 to come out for my 10D.
May 23, 2005 at 09:43 AM
jmardy
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p.1 #1410mm Vs 17mm FOV difference
No, I didn't correct for distortion. Just reduced them all to the same size.

I don't generally correct for landscapes with this lens, like Russ said. I have used this lens a lot to make QTVRs and it definitely needs to be corrected for that. PTLens does a brilliant job though.
I'll have some QTVR samples soon.
May 23, 2005 at 10:16 AM
Mr Joe
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p.1 #1510mm Vs 17mm FOV difference
The 10-22mm is an excellent lens. When replacing your 17-40, you'll gain the equivalent prime focal lengths of 24mm, 21mm, and of course the ultra wide range between 16-21mm.
May 23, 2005 at 10:23 AM
burychka
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p.1 #1610mm Vs 17mm FOV difference
Check here for angle of view for Canon lenses:

http://www.sweeting.org/mark/lenses/canon.php

You'll also see links here for EF-S lenses and other brands.
May 23, 2005 at 10:31 AM
speedbrakesout
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p.1 #1710mm Vs 17mm FOV difference
Well I'm ready to put my 17-40L back on the market. With the spare cash I'll probably go with the new Sigma 10-20 (pending it performs well - if it doesn't then EFS 10-22) and a Tamron 28-75.
May 23, 2005 at 11:05 PM
Lalfer
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p.1 #1810mm Vs 17mm FOV difference
speedbrakesout wrote:
Well I'm ready to put my 17-40L back on the market. With the spare cash I'll probably go with the new Sigma 10-20 (pending it performs well - if it doesn't then EFS 10-22) and a Tamron 28-75.


at the buy & sell forum you might be able to get a 10-22mm for around $650, I did and with hood.
May 23, 2005 at 11:45 PM
speedbrakesout
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p.1 #1910mm Vs 17mm FOV difference
at the buy & sell forum you might be able to get a 10-22mm for around $650, I did and with hood.

Wow talk about a deal! Thanks for pointing me in the right direction, I checked out some FS post but most seemed to be going for over $700.
May 24, 2005 at 01:22 AM
steve_t
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p.1 #2010mm Vs 17mm FOV difference
The 17-40 is however a more usefull general purpous lens (27-64 equivalent), the 10-22 gives you an effective 16-35. If you can manage it I'd suggest keeping both.
May 24, 2005 at 01:35 AM
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