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Messages - dilbert

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1486
Lenses / Re: Do all of canons 50 mm lens suck?
« on: April 07, 2012, 02:56:05 AM »
I think it's more than just all of the Canon 50mm's that suck. I would go as far as to say that virtually all the 50mm lenses available for Canon or Nikon aren't very good, at least above f/2.8. The performance of the Canon 50mm: f/1.2, 1.4, & 1.8, Sigma 50mm 1.4, Nikon 50mm, 1.4D, 1.8G, & 1.8D and Zeiss 50mm 1.4 are all fairly bad above f/2.8.

What is your basis for saying the above?
Reviews?
Experience?

... because what you're saying contradicts everything I've read.

1487
Lenses / Re: Tamron 24-70 f/2.8 VC Available for Preorder
« on: April 06, 2012, 11:40:38 PM »
Hello,

This is my first post but i often read on this forum.

Here i found i link on another forum that show some sample pictures of the new Tamron 24-70 VC.
Unfortunatly there is no pictures taken at F2.8.

In other words, they were taken by a professional photographer that wanted the entirety of their subject(s) in focus as the depth of field at 2.8 would have been too narrow for any of their photographs.

1488
Lenses / Re: Tamron 24-70 f/2.8 VC Available for Preorder
« on: April 06, 2012, 01:21:16 PM »
Anyway, the Tamron 24-70/2.8 VC looks to be a fantastic lens on paper, picking up where the Canon left off.

With the usual discounting for 3rd party lenses, I wonder if we'll see this go for under $1000 from retailers?

Lets hope it delivers!

1489
Lenses / Re: Tamron 24-70 f/2.8 VC Available for Preorder
« on: April 06, 2012, 11:30:30 AM »
I wonder if Tamron have a wide-angle lens for full frame up their sleeves somewhere?

Their 70-300 VC faces off quite favourably with Canon's 70-300 IS USM, the 24-70/2.8 VC holds its own against Canon's 24-70/2.8 MkI (very similar price point.) All that is missing is something to compete with the 16-35 or 17-40.

I had Tamron's 70-300 and it was indeed very sharp.  The issue I had was if I had 5-10 seconds to compose and focus on a still subject it did a great job almost every time.  If I had to turn 90 degrees and try to focus on something quickly (oh look your daughter is about to dump spaghetti on her head) the lens' focus motor would move quickly but there would be a 25-30% chance of the shot actually being in focus.  The canon 70-300L nails it every time (though 3-4X the price)

Personally, I'm happy that they traded off focus speed for better IQ in the 70-300 VC. But for similar reasons, I'm considering the 70-300L.

Quote
Tamron's 60mm macro is an epic fail for canon's 7D, they admitted the problem like a year ago and I have not heard since whether or not they fixed it.   For me it would have to have been almost as sharp as the mark II at $1300 for me to even bother taking a risk, I hate paying for return shipping on a crap 3rd party lens.

Well it would seem that the lesson here is to wait for decent reviews before buying. I know that I'm going to wait for it to be officially reviewed before deciding. That way I can make an informed purchasing decision.

1490
Lenses / Re: Tamron 24-70 f/2.8 VC Available for Preorder
« on: April 06, 2012, 11:13:00 AM »
On Adorama's website, it says that this lens comes with a 6 year warranty.

Is this a mistake?

Because Canon's warranty, for all EF lenses in the USA, is 1 year.

1491
Lenses / Re: Tamron 24-70 f/2.8 VC Available for Preorder
« on: April 06, 2012, 10:40:53 AM »
"Vibration Control." It's there variation on Canon's image stabilization.

"their".

1492
EOS Bodies / Re: Go small or go home (T4i)
« on: April 06, 2012, 10:39:44 AM »
So when I open this up with Photoshop, there are three points selected on the "T". Why would that be true?

Has the "4" been Photoshop'd in? If so, it is a very good Photoshop'ing of 4.

1493
Lenses / Re: Tamron 24-70 f/2.8 VC Available for Preorder
« on: April 06, 2012, 07:43:53 AM »
That's not a very encouraging MTF chart.

Especially compared to the II from Canon... Though some people have been clamouring for IS... Though not sure is IS is all that great if the image is soft to begin with.  I would prefer tack sharp with some misses than a peak of muddied across the board

Does the Canon 24-70 MkI result in images that are "muddied across the board"?

No. Everyone talks about how great it is, how sharp it is.

Both the new Tamron and Canon MkII are better than that.

1494
Lenses / Re: Tamron 24-70 f/2.8 VC Available for Preorder
« on: April 06, 2012, 07:42:05 AM »
I wonder if Tamron have a wide-angle lens for full frame up their sleeves somewhere?

Their 70-300 VC faces off quite favourably with Canon's 70-300 IS USM, the 24-70/2.8 VC holds its own against Canon's 24-70/2.8 MkI (very similar price point.) All that is missing is something to compete with the 16-35 or 17-40.

1495
Third Party Manufacturers / Re: Tamron 24-70 f/2.8 VC Announced
« on: April 06, 2012, 12:23:04 AM »
Readers of this thread should also read here:
http://www.canonrumors.com/forum/index.php?topic=5389.0

1496
Lenses / Re: 24 - 70mm f/2.8 L I or II
« on: April 06, 2012, 12:21:39 AM »
The thread on the Tamron 24-70 is worth reading. I've posted all three sets of MTF graphs in two posts:
http://www.canonrumors.com/forum/index.php?topic=5389.msg104013#msg104013
http://www.canonrumors.com/forum/index.php?topic=5389.msg104014#msg104014

Note that to compare the Canon graphs with the Tamron lens, you need to look at only the black lines (f/2.8). All of the blue lines on the Canon graphs represent f/8.0. Tamron's graph has lines only for f/2.8.

1497
Lenses / Re: Tamron 24-70 f/2.8 VC Available for Preorder
« on: April 06, 2012, 12:15:20 AM »
For reference, the 24-70 MkII MTF charts:


So clearly the Canon MkII lens is better than both the Tamron and the MkI.

But for twice the price of the Tamron lens, do you get twice the performance with the MkII?

1498
Lenses / Re: Tamron 24-70 f/2.8 VC Available for Preorder
« on: April 06, 2012, 12:12:13 AM »
If you look at the Canon 24-70, MK-I charts:


For the Canon's charts, you have to use the black lines. The blue lines are all f/8.0.

So if you compare this to Tamron's:


Then it is clear that the Tamron has better sharpness at f/2.8.

The chart for Canon's lens is crazy. I've mentioned the Canon 24-70 MkI lens here because that is the one that is similar in price.

1499
EOS Bodies - For Stills / 5D3 vs D800: Video 1 of 3
« on: April 04, 2012, 07:55:14 PM »
Canon 5D MK III vs Nikon D800 with Nathan Elson Small | Large

1500
Animal Kingdom / Little Penguin.
« on: April 04, 2012, 12:44:43 PM »
1/30, f/1.8 ISO 3200, 5D2, straight out of Lightroom with only a white balance adjustment and cropped to fit.

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