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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 19 Jun 2011 (Sunday) 16:11
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Tamron 70-300 VC USD

 
r34p3rex
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Jun 19, 2011 16:11 |  #1

I'm looking to pick up the Tamron 70-300 VC USD some time this week before I leave for vacation :D Are there any issues I should be concerned about?

I can either order from Amazon or drive out to B&H/Adorama. If there are QC issues with this lens, then I'd prefer to head in store to check out a few copies before buying one. Otherwise, I'd like to save some gas and order from Amazon. :)


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GregoryF
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Jun 19, 2011 16:25 |  #2

No QC issues that I am aware of, but given a choice I would always like to check em out in person! The only issues were with some very early batches.


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GregoryF
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Jun 19, 2011 16:25 |  #3

Forgeot to mention, it is a great lens. Absolutely love mine!


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riotshield
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Jun 19, 2011 23:48 as a reply to  @ GregoryF's post |  #4

Some copies have a problem with under/overexposure, especially in evaluative/matrix metering mode. Mine underexposed about a stop, I sent it in to Tamron and came back perfect.




  
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Raylon
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Jun 20, 2011 00:10 |  #5

Mine front focused at the long end but perfect at the short end. I had a screwy deal with NewEgg so I couldn't send it back. If I had Amazon it would have been a none issue. Amazon has ridiculously good return policies. I ended up sending mine to Tamron for adjustment. Quick turn around and the lens was perfect afterwards.

But I think I am one of the few so I would buy with confidence. I believe you will get a good copy.


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phreeky
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Jun 20, 2011 00:19 |  #6

I have seen some mixed results from people online. Some how that it's really sharp and beats the Canon 70-300 IS (which I used to own) @ 300mm, and yet others (including the-digital-picture samples) show it to be softer. Good and bad batches? Early ones soft? I dunno. It makes me a little bit unsure as to whether to buy one as I consider the long end of a zoom to be the primary concern for sharpness.

I'm tempted to gamble on it, but I would only use it for airshows (what the 70-300 IS got used for) as I've got a longer prime for birding so should probably wait out until I know I'll be attending another airshow.




  
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Bokehlicious
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Jun 20, 2011 00:29 |  #7

First batch was problematic, anything above 5X,XXX should be good. You shouldn't run into any of those if buying new anyways.




  
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phreeky
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Jun 20, 2011 00:47 |  #8

Bokehlicious wrote in post #12623703 (external link)
First batch was problematic, anything above 5X,XXX should be good. You shouldn't run into any of those if buying new anyways.

Was the first batch known to be problematic for softness @ the long end? I thought it was something else (AF or VC issues)?

It just seems like such a nice lens (good AF, good build etc) and I'm not sharpness-obsessed, but if I'm shooting at the long end of the zoom I'm normally cropping a bit too. I'd hate to buy it, have it let me down, and sell it on straight away. I can't buy it anywhere local for a reasonable price unfortunately :(

No great rush I suppose as I've got no immediate need for it. The Sigma 150 fills the 75mm->400mm gap reasonably well when needed for the time being, but it's never going to cut it for an airshow.




  
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GregoryF
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Jun 20, 2011 01:28 |  #9

Mine really shines at the long end.


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phreeky
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Jun 20, 2011 03:11 |  #10

GregoryF wrote in post #12623928 (external link)
Mine really shines at the long end.

Would really love to see a full size image from something like your 50D, 300mm at a low ISO and fast shutter speed (both F/5.6 and F/8) without any sharpening or NR applied. It would be GREATLY appreciated. All the full size 300mm F/5.6 and F/8 samples I've seen are from low pixel density sensor cameras (i.e. FF).




  
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Raylon
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Jun 20, 2011 23:55 |  #11

phreeky wrote in post #12624179 (external link)
Would really love to see a full size image from something like your 50D, 300mm at a low ISO and fast shutter speed (both F/5.6 and F/8) without any sharpening or NR applied. It would be GREATLY appreciated. All the full size 300mm F/5.6 and F/8 samples I've seen are from low pixel density sensor cameras (i.e. FF).

I have something close to that using my 7D. 300mm, f/6.3, ISO 200. Just checked the shutter speed and it was only 1/100, but still it's pretty good.

IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: 404 | MIME changed to 'text/html' | Byte size: ZERO


Here is link to full sized image:

http://rynwohld.smugmu​g.com …/i-wBqK8Kd/0/O/Geico1.jpg (external link)

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phreeky
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Jun 21, 2011 00:34 |  #12

Thanks!

It looks quite good. Actually is looks really good for a zoom lens in that price range, full stop. I really didn't mind my old Canon 70-300 IS, but there was a "ghosting" effect @ 300mm until it was at about F/8. Not terrible but any means, but combined with average AF performance and the typical so-so build of the Canon consumer lenses, as well as extending/rotating during AF, I was kind of over it. Not to mention being a bloody ugly lens when @ 300mm.

So now I've got to decide on my priorities and where to spend my money.

It's weird how things go, if I buy this I'd then own 3 Tamron lenses, 2 Sigma lenses, and only 1 Canon lens.




  
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Raylon
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Jun 21, 2011 00:57 |  #13

phreeky wrote in post #12630116 (external link)
Thanks!


It's weird how things go, if I buy this I'd then own 3 Tamron lenses, 2 Sigma lenses, and only 1 Canon lens.

No problem! And yea I know what you mean. I bought into the Canon system because of their awesome lenses. Turns out I can't afford them right now so I have 2 Sigmas a Tamron and a Rokinon. Figures. I will have some nice big primes eventually.


7D l Canon 70-200 f/4L IS l Canon 85mm f/1.8 l ∑ 17-50 f/2.8 l Canon 50mm f/1.8 II l S95
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Tamron 70-300 VC USD
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