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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 23 Jul 2013 (Tuesday) 20:34
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Sigma astonishes the world again: 18-35mm f/1.8

 
Blubayou
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Aug 15, 2013 13:52 |  #241

Just to be clear, I'm not trying to add fuel to the argument, but trying to understand the rational for the comparison. For example, 5D + 24-70 MK1 @ 2.8 compared to t5i (or 70D?) + 18-35 @ 1.8.

Equivalent DOF can be had with adjusted FL and widest apertures, but will the 5D + 24-70 have less noise at the higher ISO setting needed to gather light equivalent to the crop + 18-35 @ 1.8?




  
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Willie
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Aug 15, 2013 13:52 |  #242

w0m wrote in post #16209896 (external link)
Equivalent outside of practical light gathering ability. It's a great thing to compare where they're the same; but you should also highlight the differences to avoid misleading people.

So does my f/2.0 aperture on my G5 have more practical light gathering ability than the 24-70 f/2.8?




  
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Tom ­ Reichner
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Aug 15, 2013 14:23 |  #243

Blubayou wrote in post #16210773 (external link)
Equivalent DOF can be had with adjusted FL and widest apertures, but will the 5D + 24-70 have less noise at the higher ISO setting needed to gather light equivalent to the crop + 18-35 @ 1.8?

I'm not sure about less noise, but equal noise performance, yes. That is the basis for the statements I made saying that the two lenses are equivalents, when used on full frame bodies and 1.6 crop bodies, respectively.

This evaluation is made based on my own personal, real-world use of a 50D, a 7D, a 5D Classic, a 5D Mark 2, and a 5D Mark 3.
All RAW images viewed at length and with much scrutiny on a 24 inch monitor.


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Blubayou
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Aug 15, 2013 14:25 |  #244

Thanks for clarifying. I saw the 6D mentioned, then a generalized "FF" reference, so I didn't know whether we were just talking about the latest FF that are super at high ISO, or if something like the 5D would still hold its own in the comparison.




  
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Landwomble
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Aug 15, 2013 14:42 |  #245

I was rooting through a camera shop in Belleview, Washington last month and the guy saw my 650d round my neck and said "you've got to try this". Beautiful build quality and balance, image quality was excellent and that 1.8 through the range is amazing... Very impressed.




  
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mwsilver
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Aug 15, 2013 15:18 |  #246

Landwomble wrote in post #16210904 (external link)
I was rooting through a camera shop in Belleview, Washington last month and the guy saw my 650d round my neck and said "you've got to try this". Beautiful build quality and balance, image quality was excellent and that 1.8 through the range is amazing... Very impressed.

How did you see it in some local shop in Washington last month? It was only announced in the middle of July. It's backordered on B&H. Very few copies seem to be in the hands of the public at this point. How did that dealer get a copy so early?


Mark
Canon 7D2, 60D, T3i, T2i, Sigma 18-35 f/1.8, 30 f/1.4. Canon EF 70-200 L f/4 IS, EF 35 f/2 IS, EFs 10-18 STM, EFs 15-85, EFs 18-200, EF 50 f/1.8 STM, Tamron 18-270 PZD, B+W MRC CPL, Canon 320EX, Vanguard Alta Pro 254CT & SBH 250 head. RODE Stereo Videomic Pro, DXO PhotoLab Elite, ON1

  
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Volc0m23
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Aug 15, 2013 16:04 |  #247

Not true - I had mine in my hands July 5th. Pre-ordered from B&H June 14th. I'm sure dealers had priority over my pre-order


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Aressem
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Aug 18, 2013 22:31 |  #248

Still contemplating whether or not I should sell my S35 to fund this baby. Decisions, decisions.


Ryan Mackay WEBSITE (external link) | FACEBOOK (external link) | GEAR LIST | Buy & Sell Feedback: 1, 2, 3, 4, 5

  
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SamFrench
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Aug 18, 2013 23:07 |  #249

Since you're on a crop body - and given the types of shoots you do + the fact that you're seriously mulling it over in your mind - I'd say "Go for it"




  
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basketballfreak6
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Aug 19, 2013 03:21 |  #250

Aressem wrote in post #16219992 (external link)
Still contemplating whether or not I should sell my S35 to fund this baby. Decisions, decisions.

it's a tough one, i guess you need to ask yourself whether or not you feel restricted with just the 35mm focal length, as it is the 18-35 is a pretty short zoom range...

with the 35 the advantage is obviously 2/3 stop faster aperture and it's FF ready (if you contemplate going down that road in the near future)...so if to you having the ability to zoom is more important (and 18mm is decently wide on a crop not to mention there is nothing that fast aperture wise for a crop lens) then by all means go for it i say!


https://www.instagram.​com/tony.liu.photograp​hy/ (external link)
flickr (external link)
https://500px.com/tony​_liu_photography (external link)
5DIV, 5DIII, modified 760D, 16-35L f/4 IS, 24-70L II f/2.8, 70-200L IS II f/2.8, S150-600 f/5-6.3 SPORT, S14 f/1.8 ART, S50 f/1.4 ART, S135 f/1.8 ART, 100L IS Macro f/2.8

  
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genjurok
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Aug 19, 2013 04:39 |  #251

Blubayou wrote in post #16210773 (external link)
Just to be clear, I'm not trying to add fuel to the argument, but trying to understand the rational for the comparison. For example, 5D + 24-70 MK1 @ 2.8 compared to t5i (or 70D?) + 18-35 @ 1.8.

Equivalent DOF can be had with adjusted FL and widest apertures, but will the 5D + 24-70 have less noise at the higher ISO setting needed to gather light equivalent to the crop + 18-35 @ 1.8?

I have the 5D, also had the 60D and 7D for over a year.

They're comparable at ISO 3200 in terms of noise. So a faster lens at f/1.8 combined with t5i or 70D will have advantage over the 5D + 24-70 for low light shotting.

Below 1600, I thnk 5D has better PQ.


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Canon 17-40mm f/4L | Tamron 28-75mm f/2.8 | Canon 70-200mm f/2.8L IS II
Canon 50mm f/1.8 | Sigma 50mm f/1.4 | Canon 100mm f/2
580 EX | 430 EX | Pixel King Pro wireless radio trigger and receiver (x2)

  
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mwsilver
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Aug 19, 2013 10:52 |  #252

basketballfreak6 wrote in post #16220401 (external link)
it's a tough one, i guess you need to ask yourself whether or not you feel restricted with just the 35mm focal length, as it is the 18-35 is a pretty short zoom range...

with the 35 the advantage is obviously 2/3 stop faster aperture and it's FF ready (if you contemplate going down that road in the near future)...so if to you having the ability to zoom is more important (and 18mm is decently wide on a crop not to mention there is nothing that fast aperture wise for a crop lens) then by all means go for it i say!

Considering the incredible reviews, if true, it would be like having separate fast 18, 20, 24', 28, 30, and 35mm primes all at f/1.8 rolled into one. IF the IQ holds up in production, this lens would be a serious bargain. Preproduction reviews expected it to sell from around $1200 to $1500.


Mark
Canon 7D2, 60D, T3i, T2i, Sigma 18-35 f/1.8, 30 f/1.4. Canon EF 70-200 L f/4 IS, EF 35 f/2 IS, EFs 10-18 STM, EFs 15-85, EFs 18-200, EF 50 f/1.8 STM, Tamron 18-270 PZD, B+W MRC CPL, Canon 320EX, Vanguard Alta Pro 254CT & SBH 250 head. RODE Stereo Videomic Pro, DXO PhotoLab Elite, ON1

  
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troehr
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Aug 19, 2013 19:32 |  #253

I love mine. The only time it comes off the camera is when I have to shoot macro.




  
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basketballfreak6
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Aug 20, 2013 07:56 |  #254

mwsilver wrote in post #16221269 (external link)
Considering the incredible reviews, if true, it would be like having separate fast 18, 20, 24', 28, 30, and 35mm primes all at f/1.8 rolled into one. IF the IQ holds up in production, this lens would be a serious bargain. Preproduction reviews expected it to sell from around $1200 to $1500.

oh absolutely, from what i've read so far it's a great lens and if i was shooting crop that would be the lens to buy for me between the 2

but if he has already got the 35mm i think he needs to decide if he really needs the focal length the zoom provides, again while there is nothing in the arena of 18mm 1.8 for a crop it is still a very short zoom after all, it's case of want vs need i think, and if he feels he will benefit from the 18mm focal range then yea definitely sell the 35 and go for the 18-35


https://www.instagram.​com/tony.liu.photograp​hy/ (external link)
flickr (external link)
https://500px.com/tony​_liu_photography (external link)
5DIV, 5DIII, modified 760D, 16-35L f/4 IS, 24-70L II f/2.8, 70-200L IS II f/2.8, S150-600 f/5-6.3 SPORT, S14 f/1.8 ART, S50 f/1.4 ART, S135 f/1.8 ART, 100L IS Macro f/2.8

  
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singer.rick
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Aug 20, 2013 10:56 as a reply to  @ post 16149159 |  #255

After reading through this thread, I feel like it is a no brainer for me to sell my 24L MkI and buy this Siggy.


Sony A6000 | Zeiss Vario-Tessar 16-70mm f/4 OSS | Sony E 55-210mm f/4.5-6.3 | Promaster XC525 | Gear/Feedback

  
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Sigma astonishes the world again: 18-35mm f/1.8
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