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Tamron 18-400mm f/3.5-6.3 Di II VC HLD Lens (Canon or Nikon) EXPIRED

$439 or less
$649.00
+ Free Shipping
+32 Deal Score
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BuyDig.com has Tamron 18-400mm f/3.5-6.3 Di II VC HLD Lens (Canon or Nikon) on sale for $439 when you apply promo code YDH2 in your cart. Shipping is free. Thanks iconian
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Edited February 14, 2020 at 12:22 PM by
Tamron 18-400mm f/3.5-6.3 Di II VC HLD Lens (Canon or Nikon) $439 ($289 for EDU) using coupon YDH2For eligible EDU customers, there is a $150 mail in rebate [tamron-usa.com]

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12,818 Views
$439 or less
$649.00

53 Comments

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Joined Dec 2014
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#46
Quote from gallymimus
:
You'd be surprised, there are very smart people with expertise on SD.

I didn't find exactly what I wanted but this is what I was talking about, and provides some good explanation on the physics of AF systems and also some discussion of the interaction between lenses and camera body in the focus process. Just in case anyone else is curious to be educated.

https://www.usa.canon.com/interne...LR-AF-Work

https://www.usa.canon.com/interne...ss-type-AF

comments about half way through by btjunkie
https://www.dpreview.com/forums/thread/2520798

This one was pretty interesting regarding the AF not being closed loop:
https://www.dpreview.com/forums/t...t-30775548

And cyciumx, don't be such a jerk and off putting. You are probably a nice person in real life. It's OK to be polite and helpful instead of condescending on an anonymous forum, we will still like you!
Look, you can use Google. Took almost a day, but look at you now ,all grown up and stuff.
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Joined Nov 2010
L4: Apprentice
487 Posts
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#47
Quote from ubdu
:
This is a good price.

I bought mine on black Friday, also with a Tamron rebate. Got the check in a couple of weeks, no problem.

It's heavy, but built solid and versatile.

I've got mine on a D5500. This is my favorite photo I've taken with it so far: https://i.imgur.com/dJ8dNgN.jpg
you favorite image so far is a cat photo which could have been taken with a cell phone?
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Joined Dec 2014
L1: Learner
5 Posts
20 Reputation
#48
Does anyone know how long the promo is valid from buydig? I asked Tamron them a question about adding a school to the rebate that isn't listed and I doubt I'll get a response before Mon or Tues. Debating if I should buy it and hope they add it, or wait and see what they say....
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Joined Jun 2012
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Pro
#49
One lens to rule them all lol
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Joined Nov 2016
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#50
My student ID card does not have any enrollment dates. Will they decline rebate for that
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Joined Nov 2011
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#51
Thanks for this OP!
Just purchased a used one on Amazon last night, and then woke up at 3AM this morning thinking, I never checked slickdeals before pulling the trigger. Low and behold, found this post and promptly cancelled my Amazon order! $30 bucks more for new with a 6 year warranty was a no brainer! Will be using this with the 800D I just ordered.

One of the few times I have been looking to make an expensive purchase and the slickdeal timing was just perfect! Thanks again and repped!
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Joined Jul 2009
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#52
In for on as I've been looking for a zoom lens and work at an university. Smilie
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Joined May 2006
E - 1/2 - junk - 3/4 - F
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#53
Quote from gallymimus
:
You'd be surprised, there are very smart people with expertise on SD.

I didn't find exactly what I wanted but this is what I was talking about, and provides some good explanation on the physics of AF systems and also some discussion of the interaction between lenses and camera body in the focus process. Just in case anyone else is curious to be educated.

https://www.usa.canon.com/interne...LR-AF-Work

https://www.usa.canon.com/interne...ss-type-AF

comments about half way through by btjunkie
https://www.dpreview.com/forums/thread/2520798

This one was pretty interesting regarding the AF not being closed loop:
https://www.dpreview.com/forums/t...t-30775548

And cyciumx, don't be such a jerk and off putting. You are probably a nice person in real life. It's OK to be polite and helpful instead of condescending on an anonymous forum, we will still like you!
Thank you for that!!! You made me research this issue to figure out exactly what's going on. It seems pretty straightforward now, in essence the problem occurs because in a mirrored SLR camera the image you see before taking a picture when it's being focused IS NOT the image you get when it's taken. The AF sensor is used first to fucus, the mirror flips out of the way and the image is captured on the sensor which could be a different distance away than the AF sensor. This guy describes it very well. [youtube.com]

It seems a lot of SLR cameras will have an AF microadjust in their menu settings where it makes the most sense, after all the research I still don't understand how doing this in the lens makes any sense (since why would the lens itself be considered out of focus?) unless the lens adjusts at the point the shutter button is pressed.
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Last edited by dregan February 16, 2020 at 04:30 PM.
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Joined Aug 2012
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#54
My order got cancelled! Frown
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