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Thread started 16 Feb 2014 (Sunday) 01:16
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Canon 24-105 f4 -vs- Tamron 28-75mm f2.8?????

 
Ralph ­ III
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Feb 16, 2014 01:16 |  #1

Hello All,

I'm stuck and need a little input as I consider my new lens/lenses.....:oops:

What kind of IQ and DOF/Bokeh can I expect from the Canon 24-105mm f4 on a crop camera for portrait type shots and how would it compare to the Tamron 28-75mm f2.8 which I used to have?

I wanted to get a nice 24-70mm f2.8 but they are all so expensive. In fact, I think I could just about get a Canon 24-105 f4 and a Sigma 17-50mm f2.8, for the cost of any of the three good 24-70 f2.8 lenses by Tamron, Sigma and Canon?

I mean is the extra stop of f2.8 all that significant in regards to DOF versus the f4.0? I have a flash for low light work so that's not a consideration...

Thanks,
Ralph


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Thorrulz
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Feb 16, 2014 01:33 |  #2

I tried out the Tamron 28-75 f/2.8 before going with the Canon 24 - 105 f/4 due to it seeming to be sharper wide open than the Tamron. Not saying the Tamron is a bad lens but the Canon worked better for me.

Have you considered the older Canon 28-70 f/2.8, the precursor to the 24-70 f/2.8? I've seen those for slightly under $600 if you care to look around.


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D800 I Nikon 200 f2 VR 1 I Nikon 200 f2 ED AI-S I Nikon 135 f2 DC I Nikon 28-70 f/2.8 I Nikon 50 f/1.4G I Nikon 85 f/1.8G I Pentax 645D I SMC FA 645 75 F2.8 I SMC FA 645 45-85 F4.5 I SMC FA 645 200 F4
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Ralph ­ III
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Feb 16, 2014 01:49 |  #3

Thorrulz wrote in post #16692854 (external link)
I tried out the Tamron 28-75 f/2.8 before going with the Canon 24 - 105 f/4 due to it seeming to be sharper wide open than the Tamron. Not saying the Tamron is a bad lens but the Canon worked better for me.

Have you considered the older Canon 28-70 f/2.8, the precursor to the 24-70 f/2.8? I've seen those for slightly under $600 if you care to look around.

Thanks Thorrulz. I got rid of my Tamron 28-70mm f2.8 because the 28mm was just slightly to tight for me. 24mm isn't significantly wider but it would make a difference, hopefully such as 15mm on a 15-85mm is wider than typical 18-??mm.

So my question remains in regards to differences in IQ, DOF and Bokeh between f2.8 and f4.0 and whether the Canon 24-105mm f4.0 serves as a good portrait type lens, while maintaining the versatility of a zoom??

Ralph


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Feb 16, 2014 02:08 |  #4

Crop camera? Why not the Canon 17-55? Fast, 2.8, and sharp.


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Ralph ­ III
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Feb 16, 2014 02:14 as a reply to  @ flowrider's post |  #5

Hello All,

Can we please stick to my original question? I've considered every other avenue trust me and this will help in my decision making.....

God Bless,
Ralph


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kin2son
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Feb 16, 2014 03:41 |  #6
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There's simply no right or wrong answer to your question I'm afraid.

What's good is highly subjective.

The Tamron is alright in the center and plain soft at corner. It might not be a problem if you are primarily using it for portrait @ f2.8.

24-105 is probably sharper across the frame than the Tamron, has IS, but it's a f4. It's ok if you are shooting under good light or you aren't afraid to use high ISO.

You have to decide what's more important for you.


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Feb 16, 2014 04:12 |  #7

If you are after tiny dof there's no substitute for a fast prime. Sorry if this is not what you wanted to hear.




  
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Feb 16, 2014 04:31 |  #8

Anyway I have 24-105 and at 105 f4 there's nothing great. And I am using it on full frame. Bokeh is not the best at long end but it's quite sharp and great walkabout lens on FF. Why not to try 50 or 85 f1.8?




  
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oxygen45
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Feb 16, 2014 04:34 |  #9

Yeah, not a lot between 2.8 and 4 for DOF. I find moving myself or subject in relation to the background can be just as good as being lazy with a faster lens. Go for the 24-105 and a 50 1.8 if it is portraits you are after.


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Feb 16, 2014 04:38 |  #10

Here is about the best answer I can give you on how the 24-105 f/4 performs. This is a photo of one of my daughters I took before buying the lens. I hope it helps a bit in at least showing how sharp you can get the photo in regards to handholding while using the IS feature combined with a slow shutter speed.

The color and bokeh is highly subjective so that is for each person to decide. For me the versatility of the 24-105 is one of the main reasons I even considered purchasing this lens.

Taken with a 5D/24-105 f/4 IS USM @ 1/40sec f/4 ISO 200 105mm

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D800 I Nikon 200 f2 VR 1 I Nikon 200 f2 ED AI-S I Nikon 135 f2 DC I Nikon 28-70 f/2.8 I Nikon 50 f/1.4G I Nikon 85 f/1.8G I Pentax 645D I SMC FA 645 75 F2.8 I SMC FA 645 45-85 F4.5 I SMC FA 645 200 F4
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Ralph ­ III
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Feb 16, 2014 08:38 as a reply to  @ Thorrulz's post |  #11

That's a nice shot Thorrulz. Do you recall how far away the background elements were?

Thanks,
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Ralph ­ III
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Feb 16, 2014 08:52 |  #12

Nigi wrote in post #16693006 (external link)
If you are after tiny dof there's no substitute for a fast prime. Sorry if this is not what you wanted to hear.

Hey Nigi. I understand that and plan on picking up an 85 f1.8 at some point for that specific purpose. However, this thread is about the Canon 24-105mm f4.0 which no prime can compare to; when it comes to versatility.

I'm looking for a zoom that can render excellent "portrait-type" images (IQ, DOF, Bokeh) in replacing my Tamron 28-75mm f2.8 which I used in that fashion. The 17-50/55mm f2.8 lenses may end up being that choice but I wanted some input as to how the 24-105mm f4.0 stacks up.

If the Tamron had been a 24-75mm f2.8 I wouldn't be replacing it. It served it's purpose very well for me for years, with the exception of desiring something just slightly wider. A 24mm wide end would allow a few more feet on each side of a subject and that would be much better for my tight indoor shots.

Thanks,
Ralph


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Thorrulz
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Feb 16, 2014 08:57 |  #13

Ralph III wrote in post #16693330 (external link)
That's a nice shot Thorrulz. Do you recall how far away the background elements were?

Thanks,
Ralph

The background was 12 to 15 feet behind her I believe.


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D800 I Nikon 200 f2 VR 1 I Nikon 200 f2 ED AI-S I Nikon 135 f2 DC I Nikon 28-70 f/2.8 I Nikon 50 f/1.4G I Nikon 85 f/1.8G I Pentax 645D I SMC FA 645 75 F2.8 I SMC FA 645 45-85 F4.5 I SMC FA 645 200 F4
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ceegee
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Feb 16, 2014 15:04 |  #14

I used to own and love a Tamron 28-75, and recently (last year) replaced it with a 24-105. The Tamron was my go-to portrait lens, outdoors and in the studio. There were two main reasons why I let it go: (1) to get a faster-focusing lens, and (2) to get weather sealing. I thought long and hard about making the swap, because the Tamron always delivered outstanding image quality. However, I didn't often use it at f2.8. Most of the portraits I take are of dogs, and I prefer to have both the nose and the eyes in focus.

I like the 24-105. The ultra-fast focusing is really great and a big step up from the Tamron. I like having the extra length as well. I'm using it on a 7D, and it's extremely versatile. Subject isolation is no problem; it does a nice job.

Do I think it was worth the extra money over the Tamron? I'm sort of on the fence about that. The Tamron is, IMHO, a true bargain of a lens - if you don't mind the focusing mechanism. If you're shooting mainly static subjects, where fast focusing isn't a factor, I would say the 24-105 is probably not worth the extra $300. If you want to shoot moving subjects as well, or if you want to shoot in bad weather, then it probably is.

For my purposes, I'm happy to have made the exchange. The 24-105 is so versatile, it's hard not to like it. And the IQ, at least on my 7D, is terrific.


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Feb 16, 2014 15:30 |  #15

I love 70mm 2.8. Not a ton of blur but just right to create a nice image like this:

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Canon 24-105 f4 -vs- Tamron 28-75mm f2.8?????
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