Teleconverter

4 years 5 months ago #664544 by Melie776
I am using a Canon T7i with a Tamron 18-400mm f/3.5.
I recently purchased a Tamron 2x teleconverter to extend my reach.
I cannot get this combination to auto focus. It will attempt to focus but, never settle on the subject. The camera and lens are both set to AF. Frustrating. Thoughts?

Thank you,
Mark


,
4 years 5 months ago #664564 by Baydream
The light needed to use a 2x is huge. Also, does the teleconverter have the proper contacts to let the camera and lens communicate?

Shoot, learn and share. It will make you a better photographer.
fineartamerica.com/profiles/john-g-schickler.html?tab=artwork

Photo Comments
,
4 years 5 months ago #664565 by Melie776
The contacts are correct. Do you think it might be lack of light? I was shooting in afternoon sunlight.
Thanks
Mark


,
4 years 5 months ago #664571 by effron
Very likely light loss... Are you certain that TC works with that lens?

Why so serious?
Photo Comments
,
4 years 5 months ago #664576 by Nikon Shooter
I'm through losing time on TCs.
I opted for resolution instead.

Light is free… capturing it is not!
Photo Comments
,
4 years 5 months ago #664577 by garyrhook

effron wrote: Very likely light loss... Are you certain that TC works with that lens?


It turns out to be a very simple matter to check the Tamron website, here .

Turns out the 2X TC is not going to work with that lens. Time to send the TC back.


Photo Comments
,
4 years 5 months ago #664631 by effron
I figured as much. Its rare any Nikon zoom is compatible with a TC....

Why so serious?
Photo Comments
,

817.3K

241K

  • Facebook

    817,251 / Likes

  • Twitter

    241,000 / Followers

  • Google+

    1,620,816 / Followers

Latest Reviews

The Canon EOS R100 is an entry-level mirrorless camera introduced in 2023. But just because it’s an entry-level camera doesn’t mean it’s a bare-bones camera. Find out why in this review!

Apr 22, 2024

Nikon’s retro-looking Nikon Zfc is anything but retro. Under its classic body is a host of features and amenities that make it a worthwhile compact mirrorless camera for 2024.

Apr 15, 2024

The Canon EOS R50 is one of the newest R-system cameras from Canon. Is it worth your money? Find out all the details you need to know in this comprehensive review.

Apr 10, 2024

The Sony FE 70-200mm f/2.8 GM OSS II is Sony’s flagship mirrorless zoom lens. As such, it’s loaded with features and has a top-shelf build quality that makes it a top pick!

Mar 27, 2024
Get 600+ Pro photo lessons for $1

Latest Articles

The Insta360 has one of the best lineups of action cams and 360-degree cameras. With these Insta360 accessories, you can elevate your photography and videography game!

Apr 24, 2024

Creating impactful photos of landscapes depends on many factors, not the least of which is your talent behind the lens. This guide explores other elements required for the best product.

Apr 23, 2024

The Canon EOS R100 is an entry-level mirrorless camera introduced in 2023. But just because it’s an entry-level camera doesn’t mean it’s a bare-bones camera. Find out why in this review!

Apr 22, 2024

Are you ready to upgrade your camera? Before buying new, you might consider the value of purchasing used gear to save money.

Apr 18, 2024

The Olympus OM-D E-M10 Mark IV is a micro four thirds camera released in 2020. It’s an entry-level system along with the OM-D E-M5 Mark III. Use this guide to determine which one is best for you!

Apr 17, 2024

Blue hour photography might not be as well known as golden hour photography, but it is every bit as good a time to create epic images of landscapes. Learn how in this quick tutorial!

Apr 17, 2024

Nikon’s retro-looking Nikon Zfc is anything but retro. Under its classic body is a host of features and amenities that make it a worthwhile compact mirrorless camera for 2024.

Apr 15, 2024

Moving from taking snapshots of your dog to creating beautiful images doesn’t have to be that difficult! Use the tips outlined in this dog photography guide, and you’ll get better results in no time.

Apr 15, 2024