legion3 Loc: Deer Park Long Island

Tamron 150-600 will it work with a Kenko 1.4 telle

THANKS

nicksr1125 Loc: Mesa, AZ

It should. I have a Vivitar Series 1 2X converter that works okay as long as it's mounted on a tripod. Manual focus & a lot of lost sharpness.

imagemeister Loc: mid east Florida

Depends on your definition of "work" .....no AF unless you have an f8 enabled body on bright sunny day AND you get LUCKY ...

MT Shooter Loc: Montana

Yes it does work. Even the AF will work, but its not very accurate and will hunt for focus. Kenko TC's are unique in that they have no chip in them so the camera has no idea that there is a TC mounted, it only sees the lens so AF function is retained, BUT you still lose that 1 stop of light and it takes a high grade camera to AF at those low light levels. Even the Kenko 2X TC will still allow the camera to AF the lens, but locking on any focus point probably will not happen unless you are shooting in very bright sunlight.
And yes, I HAVE used both on that lens so I can confirm what I have stated.

legion3 Loc: Deer Park Long Island

THANKS MT i shoot with the 7D Mark II so i will give it a try

DOOK Loc: Maclean, Australia

Mike, I use a Tamron 150-600mm on my D7100 & D750. I also have a Kenko 1.4. Unfortunately, it won't AF on either Nikon. I have friends with 5Ds & 7Ds & the Kenko 1.4 will AF on them--strange. However, the Tamron has such a fast, accurate & smooth MF, I don't find it a hassle. After using the Kenko for a while, I decided that it was easier without it--my cameras have enough resolution to start with, so I just crop to the 1.4X advantage without any focusing issues. It all depends on what camera you use.

EDIT. I hadn't seen MT's response when I posted mine. My response is just based on my own experience. MT is the one to take notice of. Earl.

robertjerl Loc: Corona, California

I have the Tamron and the Kenko Pro 300 1,4X & 2X. They work, iffy focus with 6D, better with 7DII, but I have only used them for moon shots and sitting birds. Mostly manual focus in live view. I also use them with the 100-400 L, will be trying the 1.4X on BIF with the 100-400, several on here use that combo.

Opps MT beat us to it. Should take bathroom and ice tea breaks while typing a post.

gwong1 Loc: Tampa, FL

I traded in my Canon 1.4 and 2X extenders for the Kenko's, because I could use them with my 7D MkI, and the Tamron 150 - 600. They work fine as MTShooter states. I can also stack them and get very high quality shots, like shooting the moon. You may want to look at one of my earlier posts. Gary http://www.uglyhedgehog.com/t-271828-1.html

rickdcar

I use the Kenko 1.4 with my Sigma 18-250 on my T2i. The first time I hooked the two to my camera it killed my fully charged battery. I put another battery in and no problem. When I went to take a photo and depressed the button half way it auto focused fine. However when I fully depressed the button the lens just moved in and out so I couldn't take the shot. Switched to manual focus and had no problems.

MT Shooter Loc: Montana

That is because of your old AD sensor that is limited to F6.3, it is unable to lock focus in AD Servo mode, set it to one shot. But you probably will still not get ACCURATE AF on that camera.

rickdcar

Thanks. Manually focusing is fine with me.

James R. Kyle Loc: Saint Louis, Missouri (A Suburb of Ferguson)

Camera used for this shot was a Canon 5D Mark II / Tamron 150-600mm (@ 600) / ISO= 100 / Shutter 1/15 / Aperture 6.3 // STACKED a Tamron 2X with a Kinko 1.4X.... Manual Settings // On Tripod // No Wind // Clear Sky's over STL that night // and of course, Stabilization was OFF.

Did a little sharpening in post-edit plus a bit of contrast and brightness adjustment.

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LundyD43 Loc: Dayton, OH, USA

That depends on which Kenko TC you get. The Kenko KE14XP300C Teleplus PRO 300 DGX 1.4x AF Teleconverter does properly identify itself to the camera and the corrected focal length and aperture are recorded in the Exif. The TC does work with the Tamron 150-600mm but it won't autofocus on most cameras. Here's one photo I shot with that combo. https://flic.kr/p/wDbRNB

2x25mpg Loc: Long Island NY

It won't work with my Tamron 150-600 (g2) .....sucks because it works fine w my Canon and Tokina lenses.

JimH123 Loc: Morgan Hill, CA

It does work. What I do find is that if the lens is used wide open, the result will be quite soft. But I also find that stopping down the lens helps a lot. Of course, you are stuck using manual focus only.

First image, at quite a distance and impossible to get closer, is without the Kenko 1.4x at 600mm at f16. I noticed a large wound on the chest of the center seal and wanted a better look. I was using a Sony A57, which is a 1.5x crop body, so the FOV is like a 900mm lens.

Second image is still at 600mm at f16, this time with the Kenko 1.4x TC (at least I think I was using the Kenko - I also have the Tamron equivalent, and I like the Kenko better). EXIF data now shows that the FL is 840mm. Add the crop factor and we have a 1260mm FOV.

The third image is just a crop of the 2nd image. I was wondering about the chest wound on the middle seal and now I could see it better. Because I had stopped the 150-600 lens down to f16, the image with the TC was considerably sharper than what I would have gotten using the lens wide open.

Note: There was considerable wind and I was using a tripod. But I couldn't stop all camera shake. So, I used Topaz Sharpen AI in Stabilize Mode and it was able to undo most of the shake.

Notice also how shallow the DOF was, even at f16. I can tell that the whiskers of the middle seal are in best focus. The one sticking its head up to the right is a bit closer and is already out of focus. Or maybe it turned its head a little bit during the exposure?

600mm w/o TC

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600mm with 1.5x TC

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crop of #2

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