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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 24 Aug 2017 (Thursday) 16:07
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Sigma 17-50mm F2.8 or Canon 24mm F2.8 STM

 
jaz9090
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Aug 24, 2017 16:07 |  #1

Hi All,

I'm considering possibly buying another lens, I currently own the Canon 18-135 IS kit lens, Canon 50mm F1.8 mk2 and Canon 28-105mm F3.5-F4.5.

I am generally happy with the range of my lenses, and really love the nifty fifty, hence the thoughts to get the 24mm as a general all-rounder for when I'm out and about, a bit like the traditional 35mm. I have however seen lots of good reviews for the Sigma. I guess what I'm wondering is that given they are both F2.8 and sharp lenses (for the price) is it worth paying the extra £100 for the Sigma to have F2.8 over the range?

Thanks


Canon 70D, Canon EOS-3, Zenit-E | Canon 28-105mm EF USM, Canon 50mm f1.8 EF, Canon 18-135mm IS STM EF-S | Canon Speedlite 430EX II

  
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Bassat
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Aug 24, 2017 16:11 |  #2

I use a Tamron 17-50mm f/2.8, and really like it. I've never had a 24 STM, but in reviews it vignettes about 3 stops. You can cover that up, but you can't fix it.

To my way of thinking, and f/2.8 prime is sort of slow. Get the zoom if you need f/2.8. Buy a fast prime like the 28 1.8 if you need aperture.




  
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John ­ from ­ PA
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Post edited over 1 year ago by John from PA.
     
Aug 24, 2017 16:47 |  #3

I don't find the vignetting all that bad, although being aware that it can happen I'm careful to not push the limits which make it worse. As a point of interest the Sigma is available at https://www.bhphotovid​eo.com …Cameras/N/0/Ntt​/SI175028* (external link) for $369 after an instant rebate of $300.




  
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Bassat
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Aug 24, 2017 16:53 |  #4

I picked up a used Tamron 17-50, on POTN, for $220, all in. Excellent lens.




  
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jaz9090
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Post edited over 1 year ago by jaz9090.
     
Aug 24, 2017 17:08 |  #5

I'm based in the UK so that deal wouldn't be of much use to me unfortunately.

I realize that for a prime generally f2.8 isn't great, but the prices really jump up for something like the 1.8 that and the 2.8 gets great reviews.


Canon 70D, Canon EOS-3, Zenit-E | Canon 28-105mm EF USM, Canon 50mm f1.8 EF, Canon 18-135mm IS STM EF-S | Canon Speedlite 430EX II

  
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Bassat
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Aug 24, 2017 17:33 |  #6

jaz9090 wrote in post #18436142 (external link)
I'm based in the UK so that deal wouldn't be of much use to me unfortunately.

I realize that for a prime generally f2.8 isn't great, but the prices really jump up for something like the 1.8 that and the 2.8 gets great reviews.

The 24 STM makes for a nice small package, and I agree, it gets good reviews. Buying something just because it is cheap is a sure way to waste a lot of money, a little bit at a time. Make sure whichever one you choose is the one you really want/need.




  
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MalVeauX
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Aug 24, 2017 20:29 |  #7

If you want versatility, get the 17-50 flavor (tamron make a nice one with stabilization).

If you want a prime, maybe look at a Sigma 30mm F1.4

Very best,


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Apricane
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Aug 26, 2017 11:46 |  #8

Yeah, to me it doesn't seem like you really know why you would be buying either the 17-50 or the 24 STM... are you sure that you really need these lenses? To me it seems that it would be redundant to have three mid-range zooms (if we go by what you wrote in your message rather than what is in your signature), none of which have modern focusing systems (either USM or STM).

Based on what you seem to want (a faster and smaller mid-range zoom), then in your place I'd probably consider a Sigma 17-70 f/2.8-4 OS HSM Contemporary. (That could also allow you to sell one or both of your current zooms.)


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6D | 77D | T2i | TT685C & 430EX II & 270EX II
15-85 | ∑24-105A | 55-250 STM | 70-300L
24 STM | 35 f/2 IS | 40 STM | 100L
M2 | 22 | 18-55 | Adapter

  
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jaz9090
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Post edited over 1 year ago by jaz9090.
     
Aug 27, 2017 15:21 |  #9

Updated my signature, posting on the phone so hadn't noticed how out of date it is.

The 18-135mm is STM, it's one of the kit lenses with the 70D. The 28-105mm is USM, the 50mm prime is neither.

Just shooting this weekend and thinking about the lenses I have found found that with my young son the 50mm is great except the focus can't keep up with him, out and about the 28-105mm has been great for taking photos on the swings, running about etc. Just not as sharp as the 50mm.

Basically I love the 50mm, and was thinking that the 24mm would give me another sharper lens for more general photography.

I mentioned the 17-50mm as I'd seen it suggested that it was as sharp as the 24mm prime.

Thanks


Canon 70D, Canon EOS-3, Zenit-E | Canon 28-105mm EF USM, Canon 50mm f1.8 EF, Canon 18-135mm IS STM EF-S | Canon Speedlite 430EX II

  
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Apricane
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Post edited over 1 year ago by Apricane.
     
Aug 28, 2017 20:37 |  #10

Fair enough, however as far as I know the 28-105mm is a much older version of USM. Even if it were not, you'd basically be downgrading the quality of what you have access to in terms of autofocus. Does the 28-105 really do anything that you can't do better with the 18-135?

The 24mm is good enough for sharpness imo for what I've used it for and what you pay for it. Never used the Tamron 17-50, however, as noted above I'm not sure how that would add anything to your kit or that it would be the best option for a faster zoom.

Edit: That being said, I still don't see the point of the 24mm. Problem is that f/2.8 at 24mm on crop will always yield a fair amount of depth of field (i.e. other things being equal, comparatively little blur), and a lens like the 17-70C can go to f/3.2 at 24mm - there's very little difference between f/2.8 and f/3.2 in terms of light gathered and depth of field. The first is easy to compensate with a tad more iso or shutter speed and the second would hardly ever be really noticeable.


Apricane Instagram (external link) flickr (external link) 500px (external link)
6D | 77D | T2i | TT685C & 430EX II & 270EX II
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24 STM | 35 f/2 IS | 40 STM | 100L
M2 | 22 | 18-55 | Adapter

  
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mcoren
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Sep 03, 2017 10:09 |  #11

I love my 24mm STM. If I'm going someplace where I will be mainly using a telephoto (like a zoo or an airshow), I toss it into my bag just in case. It's lightweight and takes up virtually no space.

Mike


Canon EOS 7D Mark II, EOS M5, and EOS 100 (film SLR)
A bunch of Canon lenses and a couple of Sigmas
A backpack, a bicycle, and a pair of hiking boots

  
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Eric ­ Hopp
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Sep 04, 2017 13:15 |  #12

Why do you need a Sigma 17-50mm lens? It pretty much gives you the same coverage as your Canon EF-S 18-135mm lens, but just has the faster speed of a 2.8 aperture. Are you shooting a lot of low-light photography that you will need the faster 2.8 aperture? Or are you looking to upgrade for image quality and sharpness?

I have the 28-105mm f3.5-4.5 lens. It is pretty much my workhorse lens. It is an older, film camera lens, and the image quality certainly does not compare to the EFS-18-135mm STM lens. I'm looking at upgrading that lens to a Canon EF 24-105mm f4L lens. If you are thinking about upgrading for image quality and sharpness, then sell both your 24-105 and 18-135 lenses to fund the purchase of either the Sigma or Tamron medium zooms.

The Canon 24mm STM is a pancake lens. It is a small, lightweight lens for wide angle shooting. As Mcoren said, it is a perfect "just in case" wide angle lens that is lightweight and takes no space. I use the 24mm STM if I want to shoot with a three-prime lens kit of 24mm STM, a 50mm STM, and either an 85mm / 100mm macro with a single camera body in a compact messenger bag.

If you really love the nifty fifty, have you thought of investing in a three prime setup of a wide angle, your nifty fifty, and a prime telephoto?




  
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Sigma 17-50mm F2.8 or Canon 24mm F2.8 STM
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