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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 01 Jul 2010 (Thursday) 18:19
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Go L or stick with Tamron

 
imsilly2
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Jul 01, 2010 18:19 |  #1

I'm thinking, and pretty sure, of upgrading from a 30D to a 5D II. I owe the Tammy 28-70/2.8. Aside from design quibbles and a slower focus, would the 24-70L offer so much more in IQ to justify it's purchase.


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Austin.Manny
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Jul 01, 2010 18:23 |  #2

Probably not, but man is it a hell of a lens. :D


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emdzey01
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Jul 01, 2010 18:34 |  #3

IQ, maybe not much. but focusing speed/sound, yes.


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RPCrowe
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Jul 01, 2010 20:15 as a reply to  @ emdzey01's post |  #4

I am assuming that you are talking about the 28-75mm f/2.8 Tamron. Since you already own this lens, why not try it on your new full frame camera and see how it performs. If it meets your needs, then you have saved yourself over a grand. If it doesn't meet your needs, then investigate the 24-70L. You might try renting the lens and see how you like it. It appears that rentglass.com will rent a 24-70L for $46.00 per week. Rent one and shoot the heck out of it shoulder to shoulder with the 28-75mm Tammy - then make your definitive selection.

I own the 24-70L which I use primarily for studio work and have shot with a friends Tammy. If you switch to the 24-70L there are several things you will notice right off the bat:

Focal range:
Either lens on a 5D will give you a much wider field of view at the short end but, neither lens will seem as long at the telephoto end. The 24-70L will give you a really wide view but, 70mm on a F/F camera is not very long. If you can estimate about 43mm on your Tamron using your present 1.6x camera, that is about the field of view with the 70mm on a F/F. That is really not very long. While 70mm or so is a very nice portrait focal length on a 1.6x camera, IMO, it is not long enough on a full-frame camera for good head and shoulders portraiture. On a 1.6x camera, the extra 4mm at the wide end is quite important.

Weight:
The 24-70L is called the "BRICK" for a good reason. It is a lot bigger and a lot heavier than your present Tammy. The 24-70L weighs almost a pound MORE than the Tammy. This may impact its usefulness or perhaps not.

You might or might not notice faster and more accurate auto-focus (however AF of the Tammy should improve on the full frame camera) and you might also notice improvement in IQ. However, whether any of the above factors will make the 24-70L worth its price is totally up to you.

BTW: have you considered the 24-105mm f/4L IS lens. I would like that focal length better for a full frame camera and the IS and increased ISO capability of the 5D would compensate for the one f/stop slower performance.

What do I do? I stick with 1.6x and shoot with the 17-55mm f/2.8 IS lens for most away from the studio shooting and use the 24-70L for studio work. ! I just love the 17-55mm f/2.8 IS lens which is one reason I am sticking with the 1.6x system. A new 7D is just somewhere over the horizon to replace my 30D. However, if I were shooting weddings professionally again, I would definitely consider full frame.


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phreeky
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Jul 01, 2010 22:02 |  #5

Played with a 24-70 the other day, didn't greatly impress me compared to my 28-75. Personally I was even a little shocked at the build quality, I thought it would be miles better than it actually was the way people go on about it. I do think the hood/zoom design is awesome though.

Given you already own the Tamron I think you should hang onto it and see if it performs up to your expectations with the 5DII.




  
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SiaoP
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Jul 02, 2010 03:42 |  #6

I would canon. You'll notice a lot of bad things about lenses with a 5d mark II. Way too many megapixels.


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phreeky
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Jul 02, 2010 06:11 |  #7

SiaoP wrote in post #10465041 (external link)
I would canon. You'll notice a lot of bad things about lenses with a 5d mark II. Way too many megapixels.

I think not. Same pixel density as a 20D, as it turns out. it's just the corners you'll have to worry about.




  
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rvdw98
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Jul 02, 2010 06:22 |  #8

SiaoP wrote in post #10465041 (external link)
I would canon. You'll notice a lot of bad things about lenses with a 5d mark II. Way too many megapixels.

Can you elaborate on how those bad things are more of an issue with the Tamron?


Roy

  
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sebr
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Jul 02, 2010 06:26 |  #9

I would go with the L if you can find it for a good price as part of a 5Dii kit. Otherwise, wait until you try the 28-75 on the 5Dii to make a decision.


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Livinthalife
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Jul 02, 2010 07:01 |  #10

I had both, L had more speed, better colors. Tamron, had better sharpness, and MUCH lighter weight and size.


-Andy-

  
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bohdank
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Jul 02, 2010 07:08 |  #11

Try the 28-75 on the 5DII, then decide.

I've kept mine through a 40D/5D/5DII.

The Canon doesn't tempt me.


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harcosparky
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Jul 02, 2010 08:02 |  #12

SiaoP wrote in post #10465041 (external link)
I would canon. You'll notice a lot of bad things about lenses with a 5d mark II. Way too many megapixels.

phreeky wrote in post #10465300 (external link)
I think not. Same pixel density as a 20D, as it turns out. it's just the corners you'll have to worry about.

rvdw98 wrote in post #10465317 (external link)
Can you elaborate on how those bad things are more of an issue with the Tamron?

it's not the number of pixels or pixel density that brings out the bad in a lens.

it is sensor size, no matter how many pixels are on a FF sensor, the FF sensor will always let you know what is bad about your lens.

This is because the FF sensor uses all the area of the lens, including the weaker fringe areas that a Crop Sensor never sees. The Crop Sensor pick from the center of the lens and more or less cannot get to the edges.




  
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DetlevCM
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Jul 02, 2010 08:23 |  #13

Is that Tamron built for a FF sensor? It should have an EF mount - but will the lens project onto a FF sensor?

(the 17-50 doesn't)

On that note - the best way to upgrade to the 24-70 if you do is as a kit with the MK II - unless you want to buy it used somewhere.

28-75 (75!) review...
http://www.the-digital-picture.com ….8-XR-Di-Lens-Review.aspx (external link)
Not sure if there is a 28-70 ...)


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rvdw98
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Jul 02, 2010 08:24 |  #14

DetlevCM wrote in post #10465753 (external link)
Is that Tamron built for a FF sensor? It should have an EF mount - but will the lens project onto a FF sensor?

Yes.


Roy

  
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District_History_Fan
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Jul 02, 2010 08:28 |  #15

imsilly2 wrote in post #10462711 (external link)
I'm thinking, and pretty sure, of upgrading from a 30D to a 5D II. I owe the Tammy 28-70/2.8. Aside from design quibbles and a slower focus, would the 24-70L offer so much more in IQ to justify it's purchase.

All I can say is that my 24-70L is outrageously sharp on the 5D2. It is a great combination.


www.ericmcferrin.smugm​ug.com (external link)

  
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Go L or stick with Tamron
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