jeep_daddy Loc: Prescott AZ

I got the newer Mark II Canon lens and wouldn't trade it for any 3rd party lenses. It's much sharper than the old 100-400.

apolloshep

I am using a Canon FF 6D body 20MP

apolloshep

Did not know that since I have a Canon extender 1.4x I and the 2.0X III it maybe wiser. Any advice on the 1.4X old vs 1.4X III? Will this suffer in quality?

Vlemasters

I will take 650 for my original lens

Bultaco Loc: Aiken, SC

I've been using that lens for some time on a D500, wish I could make that statement.

imagemeister Loc: mid east Florida

The 6D does not AF @f8 - unless you tape the pins ... have you tried using the TC's with your 100-400 ??

It does make sense for you to be looking at the Tamron if you have the 6D and I would recommend the Tamron for the 6D.

If you have the version II 70-200 then the version III TC's will give an advantage - mostly with AF.

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will47 Loc: Indianapolis, IN

I made that exact trade and do not regret it one bit.

apolloshep

Not sure what you meant about the 6D not AF at f8 (or were you talking about a certain lens?) I used my 24mm - 105mm L lens and it focused fine at the tv and at my laptop screen. But have not yet even used the 1.4 V1 or the 2.x V3 on any of my lenses I know this sounds crazy but really have had no need yet. I am going to Panthertown next week in hopes of capturing some black bears or other wildlife. I will be bringing the 6D with both 70 - 200 and the 100 400 L lenses as well as the two TC's. Before hand will defiantly check these all out before shooting though.

apolloshep

Just a FYI the site below has the best price for the Canon 100 - 400 IS II that I have found so check this out if looking for one. Going forward I think I will get this lens shortly down the road it weighs about a pound less then my older lens and from reviews it is better. But as far as the Tamron lens I read a throughly review on it today on the net I do like the flexi lock feature which locks the zoom in for taking pictures or traveling but the one thing I am concerned about are the switches. The article said they slide real easily which could mess up your photo shoots the guy who wrote the review said he had to tape down the switches to prevent it from moving if this is the case would not buy it. But before I buy the new Canon tele I will go to my local camera shop to test the Tamron to see if this is a concern or not. Link below for best price..........

https://www.abesofmaine.com/Canon_EF_100-400mm_f_4_5-5_6L_IS_II_USM_Lens_1002909.html?l=ADWORDS&gclid=EAIaIQobChMIsLTetMHq2wIVlIJpCh27oAm4EAAYASAAEgLJHvD_BwE

pbradin Loc: Florida

I have the Canon 70-200 f2.8 L IS and a Canon 2X III TC. I have a friend who had the original 100-400 "L" series lens and he let me borrow it all the time and I found it to be significantly sharper than the 70-200 w/ 2X TC, and it was a smidge lighter. As far as the Tamron 150-600 goes I am clueless outside of taking a few test shots at a camera store and I didn't like the way that the IS worked. The IS on the Canon lenses worked much more smoothly, but it would not fully disqualify it if it was a "must have" lens. If the extra 200mm reach is a critical need for you, then I would explore the Tamron and the similar Sigma. Sigma's quality has been improving a lot lately. As far as searching for the lowest price, take care. I will only buy from well known dealers. Saving $50 or $100 dollars if you need to return it and there is a "return charge" or if you buy it and have a problem with it and the dealer starts giving you the run-around or you find out that the lens is a "grey-market" lens, then that extra $50-100 will mean nothing to you. You generally get what you pay for. If you do decide to buy the Tamron, save for another month or two and buy from a source that has a great reputation. Buy where the "pros" buy. Their living depends on speedy service, a quality product and great customer service. If you are okay with the current 100-400 you have and the extra 200 isn't a major factor then stay with what you have. If you do have "new lens disease", and it happens to all of us, and 400mm is fine for you, go to Canon's website and look at "refurbished" lenses for the new Canon 100-400 series II lens. It is on their site right now for $1759. Refurbished lenses are usually returns or "Demo" lenses that were used at trade shows and/or used by sales reps, then checked and returned to factory new specs and they come with everything that new lenses come with - hood, caps and case. Good luck.

wesm Loc: Los Altos CA

Suggest you search this site for opinions about Abe's.

imagemeister Loc: mid east Florida

FYI, the version 1 100-400 is smaller and 6 ounces lighter than the version II .

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clickety

Cameras focus with the lens 'open' and then stop down to the set aperture for the exposure. Adding an extender is like stopping down the lens by one (1.4x) or two (2x) stops. While your 24-105 when set to f8 focuses at either f2.8 or f4 the 100-400 will focus at what it sees as f8 or f11 with the extender attached. The 6D requires more light than f8 to autofocus. Hope this helps.

pbradin Loc: Florida

I think I left you a reply when you originally posted, but I just got an email from Sigma that has newer lower prices for their 150-600mm lens.

billnikon Loc: Pennsylvania/Ohio/Florida/Maui/Oregon/Vermont

When a product does not sell up to the manufactures expectations, some times lowering the price seems to work.