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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 07 Aug 2011 (Sunday) 21:57
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Canon 15-85mm help!!

 
arentol
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Aug 16, 2011 22:45 |  #46

adza77 wrote in post #12947375 (external link)
Thanks guys.

74°to 64°. That's roughly 13.5% extra field of view. Just trying to work out if this is the right lens for me. (An amateur wanting to take some landscape photographs such as waterfalls, etc).

Thanks

Rather than a bunch of numbers, check out the visual example starting at about 1:30 in this video review:

http://www.youtube.com​/watch?v=UbScC8rl1W8 (external link)

It shows the real world difference between 15mm FOV and both 17mm and 18mm FOV's:


5D3 | Rokinon 14 f/2.8 | 16-35L II | TS-E 24L | Tamron 24-70 f/2.8 | Tamron 28-75 f/2.8 | Voigtlander 40 f/2.0 | Σ 50 f/1.4 | MP-E 65 | 70-200 2.8L IS II | Σ 85 f/1.4 | Zeiss 100 f/2 | Σ 120-300 f/2.8 OS | 580 EX II | 430 EX II | Fuji X10 | OM-D E-M5 | http://www.mikehjphoto​.com/ (external link)
*****Lenses For Sale (external link)*****

  
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Stone ­ 13
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Aug 17, 2011 00:16 |  #47

raavi wrote in post #12944308 (external link)
I do not recommend CPL for wide-angle lens. You will have strange effects...

I disagree, many of my shots including the one I posted in this thread at 19mm were taken with a CPL. I've used it hundreds of times and I've never experienced any ill effects.


Ken
Fujifilm X100T | 5D III gripped |35L | 24-70 2.8L II | 70-200 2.8L IS II | 85 1.8 | 430 EX II | Yongnuo YN-568EX | Billingham 445 | Think Tank UD 60 |

  
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1Tanker
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Aug 17, 2011 01:14 as a reply to  @ Stone 13's post |  #48

^ I tend to agree. I use a CPL a lot on mine. I get some slight unevenness in a blue sky(from about 18mm or wider) with the CPL..not enough to not make it worth using...IMO.


Kel
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kfreels
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Aug 17, 2011 21:10 as a reply to  @ 1Tanker's post |  #49

^Same here. A decent CPL doesn't cause any problems on a wide lens. You just have to be smart. Use a hood - as you should on a wide lens anyways to reduce glare. Some of the cheap ones will have a large threading rim that can cause vignetting on super wide lenses, but again, a decent one doesn't. I have a Marumi Super DHG that was only $69 on amazon and I have no ill effects whatsoever even on my Sigma 10-20 at 10mm.


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bpark42
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Aug 17, 2011 21:49 |  #50

kfreels wrote in post #12954733 (external link)
^Same here. A decent CPL doesn't cause any problems on a wide lens. You just have to be smart. Use a hood - as you should on a wide lens anyways to reduce glare. Some of the cheap ones will have a large threading rim that can cause vignetting on super wide lenses, but again, a decent one doesn't. I have a Marumi Super DHG that was only $69 on amazon and I have no ill effects whatsoever even on my Sigma 10-20 at 10mm.

Well, mechanical vignetting can be one issue, but I don't think that is what was originally being referenced. The general issue with using polarizers on wide lenses comes up when there is a lot of sky in the shot. That issue has nothing to do really with the quality of the filter.

The sky is not uniformly polarized. With a (ultra)wide lens, you may capture areas of the sky with significantly different polarization. This can show up as bands, e.g. light sky, dark sky, light sky. Sometimes the effect can be severe enough to impact the quality of the photograph. Sometimes it may look just fine. As you said, you just have to be smart.




  
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raavi
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Aug 18, 2011 04:03 |  #51

True. Blue sky @10mm is rather boring.

bpark42 wrote in post #12954920 (external link)
Well, mechanical vignetting can be one issue, but I don't think that is what was originally being referenced. The general issue with using polarizers on wide lenses comes up when there is a lot of sky in the shot. That issue has nothing to do really with the quality of the filter.

The sky is not uniformly polarized. With a (ultra)wide lens, you may capture areas of the sky with significantly different polarization. This can show up as bands, e.g. light sky, dark sky, light sky. Sometimes the effect can be severe enough to impact the quality of the photograph. Sometimes it may look just fine. As you said, you just have to be smart.




  
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adza77
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Aug 30, 2011 23:41 |  #52

Well, I have one of these lenses now. Haven't had a chance to really play with it, but like what I've seen so far. I forgot about the USM. (First lens I have with USM... very nice!)


Nearly all men can stand adversity, but if you want to test a man's character, give him power. - Abraham Lincoln

  
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AkumaX
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Aug 31, 2011 14:47 |  #53

what would have better IQ, the 15-85mm or the Tammy 17-50mm f/2.8 non-VC?


6D | 24-70L f/2.8 I | 40mm f/2.8 | 50mm f/1.4 | 85mm f/1.8 | 430EX II

  
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ateet
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Aug 31, 2011 19:44 |  #54

AkumaX wrote in post #13031360 (external link)
what would have better IQ, the 15-85mm or the Tammy 17-50mm f/2.8 non-VC?

I tried Tammy and returned it. Went with 15-85mm. Like the 4 Stop IS on Canon.


Canon 5D Mk III | EF 24-70L II | EF 135L | EF 70-300L | EF 50mm f/1.8 | 580EX II

  
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Sirrith
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Aug 31, 2011 20:40 |  #55

AkumaX wrote in post #13031360 (external link)
what would have better IQ, the 15-85mm or the Tammy 17-50mm f/2.8 non-VC?

The 15-85mm. But at 2.8, the 17-50mm.

Depends on whether you need the range or the aperture.


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AkumaX
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Sep 01, 2011 00:15 |  #56

ateet wrote in post #13032689 (external link)
I tried Tammy and returned it. Went with 15-85mm. Like the 4 Stop IS on Canon.

I might be in the same boat... tell me the pros/cons vs each?

Sirrith wrote in post #13032967 (external link)
The 15-85mm. But at 2.8, the 17-50mm.

Depends on whether you need the range or the aperture.

Will I need it? I understand f/2.8 in low-light, and maybe daytime bokeh? But there's no IS, so I figure at night the 15-85mm's IS might beat out the extra stop's I'd gain...


6D | 24-70L f/2.8 I | 40mm f/2.8 | 50mm f/1.4 | 85mm f/1.8 | 430EX II

  
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Canon 15-85mm help!!
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