17-40 + 50 1.4 on 70D?

Started Feb 20, 2014 | Discussions
MMACory Senior Member • Posts: 1,756
17-40 + 50 1.4 on 70D?

I might be on the verge of the 17-40 and 50 1.4 for all things not-sports on my 70D.  Anyone else use this combo and, if so, yes?  Thanks.

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Jeff Peterman
MOD Jeff Peterman Forum Pro • Posts: 12,776
Re: 17-40 + 50 1.4 on 70D?
3

Why? In my opinion, the 17-40 is not a good choice on the crop bodies - relatively expensive, but not an especially sharp lens and a little short on the long end. And why the 50mm f1.4? The latter is a decent lens, but you're paying a lot compared to the 50mm f1.8 and may not need the extra speed?

So, tell us what you intend to use these lenses for, and maybe we can give more useful advice. (I love my 17-55 f2.8, which can replace both of the above lenses for most situations for not much more money, and is a very sharp lens even wide open.)

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peterharvey Contributing Member • Posts: 920
Re: 17-40 + 50 1.4 on 70D?
1

You have 885 posts, so you are a very experienced photographer, so I presume that you are familiar with the 70D sensor's 1.6 times magnification factor, and that EF-S lenses will only fit on the APS-C sensors, while EF lenses will fit on both the smaller APS-C sensors and on the larger full frame sensors. Thus you are probably deliberately thinking to purchase a range of EF lenses that can also be used on full frame size sensor cameras as well.

However those EF lenses are not really optimized for the 70D's smaller APS-C size sensor, thus with a 1.6x magnification factor, you end up with very long lenses - great if you love to shoot long/tele.

The 17-40 gives you an equivalent focal length of 27-64, while the 50 gives you 80mm, good for general and portrait use respectively - provided that's what you want to do???

The 17-40 is also a budget-ish L lens, so the 16-35 f2.8L is more premium.

Also worthy of consideration is why get a 17-40 f4L lens with a Mg alloy body and weather sealing when the 70D has a plastic body with little weather sealing?

Thus you might want to get a more dedicated EF-S 17-55 f2.8 as Jeff Peterman suggests?

Or an even sharper and brighter Sigma 18-35 f1.8 if you can live with the shorter 2x zoom range.

Or an EF-S 15-85 f3.5-5.6 if you want 6x zoom, or an EF-S 18-135 STM if you want less wide and more tele.

It all depends what you want to photograph...

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Zack T Junior Member • Posts: 36
Re: 17-40 + 50 1.4 on 70D?
1

Yah I suggest the 17-55 f/2.8 IS as well.  I have the 50 1.4 and I never use it.  It's just too long of a reach for a crop body.

I only carry 2 lenses around now. 17-55 f/2.8 IS and the 70-200 f/2.8L IS II Well 3 cuz the 40mm 2.8 is just so compact.

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Atoche
Atoche Contributing Member • Posts: 677
Re: 17-40 + 50 1.4 on 70D?
1
 the 70D sensor's 1.6 times magnification factor,

There is no such "magnification factor"... crop bodies are called crop bodies - because their field of view is a relative "cropped" capture in relation to a FF sensor...

If I have a 5D, and a 7D... with the same focal length lens, standing in the same exact spot/distance to subject - you will get exactly the same "magnification factor" - which is zero.  The crop sensor merely shows 40% less area (hence the term cropped).  When the photos are examined side by side, the subject will not appear closer in the photo taken by the 7D (have no "magnification factor"), it will simply appear "cropped" as compared to the FF capture.  I know this for a fact, as I have tested this myself (I have both cameras).

The "extra reach" comes from the fact that the sensor pixels are concentrated on 40% less area, thereby allowing for more cropping - making it seem like there is a "magnification factor"... all of this, of course, has noting to do with the resolution - that's a whole nother story.

It's weird to me that experience photographers on this site refer to this "extra reach", or "magnification factor" or "this lens has more focal lenght if I mount it on my crop sensor" when it's just not the case.

It is what it is, a crop of an equivalent FF capture.

$.02

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OP MMACory Senior Member • Posts: 1,756
Thanks

Thank you for all of the responses.  I really do like how Sigma renders color and contrast and pictures from the 18-35 look remarkable - really nice.  I think the perfect lens would either be a smaller Sigma 18-35 in 2.8 or maybe the same with more range in a 4.0.

I think I might stick with the 35 and see what pops up throughout this year.  Adding a 10-22 seems attractive, but I'm not overly a wide-angle person and a one-lens "normal" solution might be ideal.

Still not ruling out the 17-55 or 18-35 (probably am the 17-40, though), but the Canon's a little big and seems slightly flimsy (no offense to anyone) and I don't really need 1.8 on the other.

Maybe even an "Art" update to the 17-50 would do it.

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Abu Mahendra Veteran Member • Posts: 4,780
Re: 17-40 + 50 1.4 on 70D?

Bad move on both fronts. Use the 17-40 on FF only. On APS-C go with the Sigma 18-35 (or if you must, the Canon 17-55 IS).

I would not buy the Canon 50 1.4 today. I'd go with the EF-S 60 Macro instead.

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Abu Mahendra Veteran Member • Posts: 4,780
Re: 17-40 + 50 1.4 on 70D?

On the Sigma you may not need f1.8, but you'll love the even higher resolution afforded by the lens starting at f2.8.

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Jerry-astro
Jerry-astro Forum Pro • Posts: 10,567
Re: 17-40 + 50 1.4 on 70D?

Abu Mahendra wrote:

Bad move on both fronts. Use the 17-40 on FF only. On APS-C go with the Sigma 18-35 (or if you must, the Canon 17-55 IS).

I would not buy the Canon 50 1.4 today. I'd go with the EF-S 60 Macro instead.

Not sure the 18-35 would be such a stellar move either, at least for a walkaround. Awfully short range. Even the 17-55 is short for some photographers. IQ for the Sigma is supposedly excellent, but that doesn't necessarily make it the preferable choice for more general purpose photography.

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OP MMACory Senior Member • Posts: 1,756
Re: 17-40 + 50 1.4 on 70D?

Thanks for the additional responses.  Seems like currently there's no perfect lens.  Image quality is, by far, my priority so I think the current choice would be the 18-35.  I've had the 17-55 and, i don't know, it just didn't grab me.  My current 35 is very sharp and all, but just doesn't reach out with that intangible quality like my 200 2.8 II, in particular, does.  Sigma lenses do seem to have "that" quality.

So maybe the 18-35 is the way to go.  I've also had the 15-85 which I found to be blah.  Nothing against it, really, but just nothing special.  I'm all about minimal/special gear so maybe I'll suck it up and go with the 18-35.

Not that there would be, but any potential for potential focusing issues on the 18-35?  It's not a sports lens so the ultimate in focusing speed isn't a concern at all.

THANKS again.

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Kaso Senior Member • Posts: 3,947
Sigma DC Lenses on 70D

MMACory wrote:

I really do like how Sigma renders color and contrast and pictures from the 18-35 look remarkable - really nice.

I use Sigma 30mm f/1.4 "A", 18-35mm f/1.8 "A", and 17-70mm f/2.8-4 "C" (all DC: EF-S equivalent) on my 70D. The third one is my walkaround lens -- I don't need longer reach.

Excellent clarity and colors. No AF issues (in non-sports scenarios).

x-vision
x-vision Senior Member • Posts: 1,227
Re: 17-40 + 50 1.4 on 70D?

MMACory wrote:

I've had the 17-55 and, i don't know, it just didn't grab me.

I've had the 17-55 for six years.
It's an excellent lens optically and a very good one-lens solution for 1.6x cameras.
But I got tired of using such a bulky lens as a walk-around lens, so I replaced it with the 17-40L.

I now use the following lenses: the 17-40L as a walk-around, the 24/2.8 IS for indoors, and the 60mm macro for outdoors and macro.

I don't agree that the 17-40L is not a good option for 1.6x cameras. It's relatively compact (certainly more so than the 17-55), it doesn't extend when zooming, it's very sharp, and has wonderful color rendition (arguably better than the 17-55).
The only thing that I miss from the 17-55 is the IS; it's really helpful to have it on a walk-around lens.

The 17-40L + 50/1.4 combo seems like a good idea to me. 50mm is relatively close 35mm, though.
A lens wider than 35mm might be more useful in combination with the 50/1.4 (e.g. 24/28mm).

Good luck.

Jeff Peterman
MOD Jeff Peterman Forum Pro • Posts: 12,776
Re: 17-40 + 50 1.4 on 70D?

[the 17-40 is] very sharp, and has wonderful color rendition (arguably better than the 17-55).

I have both. My 17-40 is no where near as sharp as my 17-55, and the color of images from the 17-55 is better than I get from the 17-40. I keep thinking of selling the 17-40, but have held on to it for the full frame body that I'll buy "some day."

For me, if you have a 40mm or 55mm zoom, the 85mm f1.8 is a better choice than a 50mm f1.4. I haven't used my 50mm since getting the 17-55, but I do still use the 85mm.

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Abu Mahendra Veteran Member • Posts: 4,780
Re: 17-40 + 50 1.4 on 70D?

Abu Mahendra wrote:

Bad move on both fronts. Use the 17-40 on FF only. On APS-C go with the Sigma 18-35 (or if you must, the Canon 17-55 IS).

I would not buy the Canon 50 1.4 today. I'd go with the EF-S 60 Macro instead.

Not sure the 18-35 would be such a stellar move either, at least for a walkaround. Awfully short range. Even the 17-55 is short for some photographers. IQ for the Sigma is supposedly excellent, but that doesn't necessarily make it the preferable choice for more general purpose photography.

This is personal opinion passing as a rule of thumb or a general consensus.

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Abu Mahendra Veteran Member • Posts: 4,780
Re: 17-40 + 50 1.4 on 70D?

The "problem" with the 17-40 on Crop is that for its price and size, it is a slow f/4.

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Abu Mahendra Veteran Member • Posts: 4,780
Re: 17-40 + 50 1.4 on 70D?

The "problem" with the 17-55IS is that for its price and size its built quality is underwhelming and its IQ at f2.8 now lags in comparison to the Sigma.

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Jerry-astro
Jerry-astro Forum Pro • Posts: 10,567
Re: 17-40 + 50 1.4 on 70D?

Jeff Peterman wrote:

[the 17-40 is] very sharp, and has wonderful color rendition (arguably better than the 17-55).

I have both. My 17-40 is no where near as sharp as my 17-55, and the color of images from the 17-55 is better than I get from the 17-40. I keep thinking of selling the 17-40, but have held on to it for the full frame body that I'll buy "some day."

For me, if you have a 40mm or 55mm zoom, the 85mm f1.8 is a better choice than a 50mm f1.4. I haven't used my 50mm since getting the 17-55, but I do still use the 85mm.

You beat me to it. Would have responded exactly the same, and I too have owned both lenses. My 17-55 is considerably sharper, has less CA and better color than the 17-40, not to mention IS and a stop faster.  Much better lens and better suited to a crop camera IMHO. I also have no issue with the build quality of the 17-55, as another poster had mentioned. Not quite as robust as the 17-40, but more than sufficient for a walkaround lens that's on my camera the vast majority of the time... and way better than any of the kit lenses.

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Jerry-astro
Jerry-astro Forum Pro • Posts: 10,567
Re: 17-40 + 50 1.4 on 70D?

Abu Mahendra wrote:

Abu Mahendra wrote:

Bad move on both fronts. Use the 17-40 on FF only. On APS-C go with the Sigma 18-35 (or if you must, the Canon 17-55 IS).

I would not buy the Canon 50 1.4 today. I'd go with the EF-S 60 Macro instead.

Not sure the 18-35 would be such a stellar move either, at least for a walkaround. Awfully short range. Even the 17-55 is short for some photographers. IQ for the Sigma is supposedly excellent, but that doesn't necessarily make it the preferable choice for more general purpose photography.

This is personal opinion passing as a rule of thumb or a general consensus.

Who suggested that it was a "rule of thumb or general consensus?" Like most posts here (most certainly including your own) it is merely an opinion.  Interpret or adopt as you see fit.

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Abu Mahendra Veteran Member • Posts: 4,780
Re: 17-40 + 50 1.4 on 70D?

Ok...peace out. Cheers.

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OP MMACory Senior Member • Posts: 1,756
Re: 17-40 + 50 1.4 on 70D?

Ain't no thing.  Many, maybe even most, value range over other qualities.  I'm willing to compromise on range.  I think all fingers are pointing at the 18-35 unless something similar/smaller is inbound from Canon or Sigma.

While I'm at it - anyone interested in my 35 2.0 IS + Canon lens hood?

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