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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 07 Nov 2013 (Thursday) 09:38
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Tamron developing 150-600mm VC USD lens

 
Talley
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Jan 03, 2014 09:25 |  #1126

After reviewing the videos again. IT would be nice for them to of had a second option on the limiter for 5M-15M. That would greatly increase AF speed when you are doing closer objects.


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pwm2
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Jan 03, 2014 09:32 |  #1127

runninmann wrote in post #16574169 (external link)
I didn't say that it wouldn't be prejudicial. I said it wouldn't necessarily be racist. In fact I used the word bias, a synonym of prejudice, in my post.

My repsonse wasn't all related to you. But my original post used "prejudice" and then lots of people had to bring in "racist" in the debate. Had I intended racism, then I would have used that word in the first place.

In this case, Tamron made a good choice of production country. This lens isn't intended as a premium lens allowed to sell at a premium price. That means they need to focus on "best quality possible for a fixed amount of money". Tamron might have had other options available if intending this lens to sell for $2000. They can afford more time spent with individual lens calibration if paying chinese wages than if paying japanese wages.


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Jan 03, 2014 09:36 |  #1128

pwm2 wrote in post #16574202 (external link)
My repsonse wasn't all related to you. But my original post used "prejudice" and then lots of people had to bring in "racist" in the debate. Had I intended racism, then I would have used that word in the first place.

In this case, Tamron made a good choice of production country. This lens isn't intended as a premium lens allowed to sell at a premium price. That means they need to focus on "best quality possible for a fixed amount of money". Tamron might have had other options available if intending this lens to sell for $2000. They can afford more time spent with individual lens calibration if paying chinese wages than if paying japanese wages.

But, my post, which you quoted, was in response to someone who used the word "racist."


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Jan 03, 2014 09:38 |  #1129

jbrackjr wrote in post #16574165 (external link)
One thing that is a concern for me is zoom lock. I know it has a lock to prevent creep when walking (saw that in Franks review). But can you lock it at say 600? If the lens has creep and I'm fairly certain it will, it's going to be a PITA to hold it in place when on a tripod shooting up. Say birds high in a tree, or doing a moon shot.

Hopefully, I am wrong about this. Anyone with any info??

I was wondering too. I asked this to Frank if the lock can also be use when it is in 600mm. I have a canon 18-200mm with lock but only when it is wide FL.


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Jan 03, 2014 09:43 |  #1130

Yes, most button locks lock the lens at its short end for carrying purposes. A barrel lock (like on the 100-400) allows locking at any FL.


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pwm2
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Jan 03, 2014 09:48 |  #1131

runninmann wrote in post #16574212 (external link)
But, my post, which you quoted, was in response to someone who used the word "racist."

Yes. Your post contained "Also, not all bias is based on race so your statement that this is the definition of racism is, in my opinion, overly broad." which was in response to Vengence - the person who decided to bring in "racist" into the debate. And so I noted that I did start this line of debate with the word "prejudice" and not "racist".


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Jan 03, 2014 09:48 |  #1132

i don't think i can recall a single lens that allowed you to lock it in both extended and retracted positions...so i'd assume this is only for 150mm


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Jan 03, 2014 09:49 |  #1133

DreDaze wrote in post #16574237 (external link)
i don't think i can recall a single lens that allowed you to lock it in both extended and retracted positions...so i'd assume this is only for 150mm

The 100-400?


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Jan 03, 2014 09:51 |  #1134

I don't see where you would need it to lock at 600. When you carry a lens, the barrel is down with all the weight pulling down, hence the need for a lock. On a tripod, you're shooting at an angle, rarely straight up. The angle puts enough friction on the lens to keep it open.


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Jan 03, 2014 09:52 |  #1135

pwm2 wrote in post #16574238 (external link)
The 100-400?

ok...i didn't know that...but any conventional zooms that lock at both ends, or is it only push pulls?


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Jan 03, 2014 09:53 |  #1136

pwm2 wrote in post #16574238 (external link)
The 100-400?

Yup, you can lockin any position. Not so handy at say 400mm, but if you want to lock it at say 200 or 300, it's easy to do.


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Jan 03, 2014 10:08 |  #1137

Maybe the 150-600mm may have some type of a barrel lock when it is in 600mm or maybe just tight enough when you are at a long end. I suspect the lock switch is for short FL for storing purposes.


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Jan 03, 2014 11:04 |  #1138

Peter2516 wrote in post #16574284 (external link)
Maybe the 150-600mm may have some type of a barrel lock when it is in 600mm or maybe just tight enough when you are at a long end. I suspect the lock switch is for short FL for storing purposes.


Locks at 150mm. It's for walking around and/or storing.


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Jan 03, 2014 11:29 |  #1139

jimewall wrote in post #16574106 (external link)
The only reason I would go to a Canon 100-400mm over my Sigma (or this if it is good) is size. It is enough shorter (physical dimensions) that it is easier to store and carry - so I would/might be willing to take it with me more frequently. I still occasionally think this because there is only a 100mm shortage on the Canon compared to the Sigma. But the Tamron has a 200mm advantage - I'd be less likely to think of switching

.

Agreed on all....unless one birds from a car, you are carrying around your gear and the more miles you have plus the weight of your gear, well...they add up after awhile. So that in my mind is a huge issue.

Second...is the 600 truly a 600 or is it a 570mm? ....


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Jan 03, 2014 11:32 |  #1140

vengence wrote in post #16573376 (external link)
Regarding the quality of something based entirely on where it's made and not on the object it's self is the very definition of racism....

Someone needs a dictionary. :rolleyes:


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Tamron developing 150-600mm VC USD lens
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