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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 13 Aug 2009 (Thursday) 14:27
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An un-scientific analysis of 24-105L use vs. 24-70

 
shomat
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Post edited over 1 year ago by shomat.
     
Aug 13, 2009 14:27 |  #1

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perfarny
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Aug 13, 2009 14:51 |  #2

Let me know where you end up...I've been thinking about the 24-70 myself for DOF and bokeh reasons. I've basically been wishing my 70-200 2.8L IS went from 24-105...with or without the IS ;-)a




  
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gofer
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Aug 13, 2009 14:58 |  #3

I think you're just looking for an excuse to buy a 24-70 ;) I also think you'll miss the 24-105 more than you realise. For travel what do you think the 24-70 will give you that the 24-105 doesn't - other than 1 stop (which the IS on the 24-105 more than makes up for)? As for the 10 events per year, that was a nice after thought to complete the reasoning ;). I have both these lenses and if I had to loose one it wouldn't be the 24-105 that's for sure. Just my thoughts.


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Eric
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Aug 13, 2009 14:58 |  #4

I think you should keep the 24-105.....Reason being, 27% of your shots were wide open where perhaps you could have benefited from a 2.8 ap. BUT 32% were taken at a FL longer than 70mm. Resulting in a 5% advantage given to the 24-105.

That is my un-scientific analysis of your data.

EDIT: Don't forget about the weight difference for travel.


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DL.Photography
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Aug 13, 2009 15:23 |  #5

Like you said...the 24-105L has gotten you a lot of shots you are very happy with. I say keep the 24-105L as a travel lens. Throw one of your fast primes in your bag when you travel for low light work.


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District_History_Fan
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Aug 13, 2009 17:27 as a reply to  @ DL.Photography's post |  #6

It all depends on the particular use as to which lens is appropriate. Obviously, the 24-105 is working well for your shooting style.

I chose the 24-70 mainly becuse of its background blurring 2.8 aperture for portraits, but also because 2.8 is nice for keeping a more reasonble shutter speed for indoor events or other low light work.

If I had your primes, the 24-105 may well have been my choice too.


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mzondeki
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Aug 13, 2009 17:50 |  #7

10% under speed of 1/25s.. so you concluded IS is not useful since 90% of shots you can handhold. The other way of looking this is : "only 10% of your shots need FAST lens "


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shomat
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Aug 13, 2009 18:07 |  #8

gofer wrote in post #8454191 (external link)
I think you're just looking for an excuse to buy a 24-70 ;)


I think you're right.

gofer wrote in post #8454191 (external link)
I also think you'll miss the 24-105 more than you realise.


Possibly. We'll see.

DL.Photography wrote in post #8454364 (external link)
Throw one of your fast primes in your bag when you travel for low light work.

I usually bring the 50/1.4.

AirRick2 wrote in post #8454194 (external link)
I think you should keep the 24-105.....Reason being, 27% of your shots were wide open where perhaps you could have benefited from a 2.8 ap. BUT 32% were taken at a FL longer than 70mm. Resulting in a 5% advantage given to the 24-105.

That is true however I'm not considering the longer focal length as much of a selling point as I thought it would be, especially considering that when we travel we usually have a 70-300 IS USM with us.

mzondeki wrote in post #8455177 (external link)
10% under speed of 1/25s.. so you concluded IS is not useful since 90% of shots you can handhold. The other way of looking this is : "only 10% of your shots need FAST lens "

That is a good way of looking at it, but I shoot wide open more for the DOF than motion stopping capabilities.

Thanks for the input, everybody.




  
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EmaginePixel
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Aug 13, 2009 23:40 |  #9

shomat wrote in post #8453999 (external link)
10.73% of my travel photos have been taken at a shutter speed under 1/25 of a second. I don't use a tripod. Therefore roughly 90% of my travel photos are taken at a shutter speed at which I am comfortable hand-holding.

You have to give credit to IS here. IMHO, your keeper rate at 70mm shooting at 1/25 will drop significantly. I have compared 17-55 versus 24-70 side by side (55mm). At that speed, I had to double or triple shoot a shot. Compared to the IS, 100% keepers.


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Super-Nicko
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Aug 14, 2009 04:57 |  #10

mellofelow wrote in post #8456869 (external link)
You have to give credit to IS here. IMHO, your keeper rate at 70mm shooting at 1/25 will drop significantly. I have compared 17-55 versus 24-70 side by side (55mm). At that speed, I had to double or triple shoot a shot. Compared to the IS, 100% keepers.

this is absolutely true... you may consider 1/25 your threshold but for truly sharp shots in light conditions that require the 1/25 in the first place typically blur a significant amount of photos even at 1/60 handheld... IS is great for below 1/100 i believe -

although when your at 1/25 now you could be at 1/50 at 2.8 - although the 1/25 shots are usually scenery or indoow wide and wanting at least f4 - that are actually pretty difficult with no IS.... i take alot of these static scenery shots when on holidays...

I would have a tough call to make to get rid of one... for travel abroad its the IS... and backup of prime...
but it is a tough call!!! for everything at home thats not video on 5d2 - its the 2.8. - a tiny crop can make up the 35 mm missed at the long end... its usually the thinner DOF im after too...

btw what cam u using?


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Neal
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Aug 14, 2009 06:41 |  #11

With both of these the main decider to most people is usually the cheaper price of the 24-105 compared to its brick like cousin.

If focal length isn't an issue due to the 70-300 (however requiring a lens change which takes a lot longer than spinning a zoom grip) the only advantage the 24-105 has left is the IS, which is greater than the stop you'd gain with the 24-70.

This makes a very tough call. I love my brick personally, and to quote Charlton Heston, you can prize it from my cold dead hands.

If your finding the 24-105 fine and getting good shots, then wait. 24-70s are rare as rare can be second hand, and very expensive new.

Plus also sods law, you'd buy one and Canon finally release the much fan boi lusted after 24-70 f/2.8L IS.

Personally I'd keep what you have.


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Fastfwd13
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Aug 14, 2009 08:05 |  #12

shomat wrote in post #8453999 (external link)
I dumped copies of all my travel photos into a folder and pointed ExposurePlot (external link) at them. It reported the following:

Thank you so much for that software tip. I was debating lens choices myself and found that almost all my pics are taken 40-70mm and f2.8 or f4 with my current camera which has a lower bound of 40mm. so that means the 24-70 will be perfect for me.




  
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DL.Photography
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Aug 14, 2009 08:17 |  #13

shomat wrote in post #8455262 (external link)
I usually bring the 50/1.4.

setup1
24-105L = 670G
50 f/1.4 = 290G
Total = 960G

setup2
24-70 = 970G.

My unscientific analysis is that setup 1 = a more light weight/versatile travel combo :cool:


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RobKirkwood
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Aug 14, 2009 09:15 as a reply to  @ DL.Photography's post |  #14

Ann and I shot for 18 months or more using both of these lenses at the same time on 5D's. I don't have a definitive answer about which I feel is best - sometimes it's the 24-105 and IS, other times it's the f2.8 that matters more.

If I had to buy just one of them again right now, I'd choose the Canon 24-105 IS, because it's lighter, has longer reach, and quite a few 24-70's seem to be not quite right off the production line (ours had to be recalibrated under warranty, and was then excellent).

If you don't mind 3rd party, the new HSM Sigma 24-70 f2.8 is a very worthy lens and much more compact than the Canon 24-70.

Including the Nikon equivalent that we now have, I would rate image quality in the following order (best to worst): Nikon 24-70 > Sigma 24-70 HSM > Canon 24-70. We're not talking about a huge difference though, and this rating is purely based on our own sample of 1 copy of each lens. Also I'm not dumping on Canon here - it can be a very fine lens, and did serve us very well for 18 months, for which I'm grateful.

Rob




  
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Ziffle
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Aug 14, 2009 09:22 |  #15

another little factor is 'what' you are take pictures of....

there is a difference between people and landscape, yes i know you know....

For me, the 2.8 allow higher shutter speed and DOF combo to stop people at a wedding.

just my 2 cents.....

Later ..... Mark


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An un-scientific analysis of 24-105L use vs. 24-70
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