Teleconverters (Page 4): I think user Photolady2014 had a problem with her 1.4x and 100-400L II that resulted in a repair to the camera. I browsed her topics but couldn't find the...

CHG_CANON Loc: the Windy City

I think user Photolady2014 had a problem with her 1.4x and 100-400L II that resulted in a repair to the camera. I browsed her topics but couldn't find the specific post. You might ask her directly if that was the case. With two cameras involved, it could be the extender rather than both cameras, but still some examples for other eyes to see (and see the EXIF) might still be the next logical (and free) step.

robertjerl Loc: Corona, California

You should be able to get good sharp images with the lens and extender.
Mine gives excellent results as these two images with the 100-400L mk2 + 1.4x III on a 7DII show, these are actually using the combo in place of a macro lens. The white skipper is just over 1" and the golden one is just under 1".

(Download)

VietVet Loc: Brooklyn, NY

CHG_CANON wrote:

I think user Photolady2014 had a problem with her 1.4x and 100-400L II that resulted in a repair to the camera. I browsed her topics but couldn't find the specific post. You might ask her directly if that was the case. With two cameras involved, it could be the extender rather than both cameras, but still some examples for other eyes to see (and see the EXIF) might still be the next logical (and free) step.

Thanks CHG_CANON. I’ll try to find her post and pm her for information. I don’t know what can go wrong on the converter but it is a used item. All looks good with it as far as I can see.

imagemeister Loc: mid east Florida

VietVet wrote:

I have a canon 100-400L II lens that I use on my EOS R & 7Dii. I purchased a canon 1.4 converter V-III but am finding the images are very soft. (extremely disappointed). I’ve tried upping the shutter speed etc. but still soft focus on all images. The mentioned lens used as is takes perfectly sharp images. Any way to solve this issue?

Have you shot tests with a tripod ?? Are you using a "protective" filter on the front of the lens ? The 7DII can require focus calibration the R does not .... There can be electronics/focus issues within the extender ....
.

VietVet Loc: Brooklyn, NY

imagemeister wrote:

Have you shot tests with a tripod ?? Are you using a "protective" filter on the front of the lens ? The 7DII can require focus calibration the R does not .... There can be electronics/focus issues within the extender ....
.

I haven’t used it wit a tripod and I don’t use protective filters on my lenses. I’ll have to wait till I get home to do some testing. I’ve only got the R with me now and as I posted I dropped the L to RF adapter and damaged the mounting ring so no more 100-400 for the rest of my vacation. Thanks for your help imagemeister.

tcthome Loc: NJ

delete

Architect1776 Loc: In my mind

VietVet wrote:

I have a canon 100-400L II lens that I use on my EOS R & 7Dii. I purchased a canon 1.4 converter V-III but am finding the images are very soft. (extremely disappointed). I’ve tried upping the shutter speed etc. but still soft focus on all images. The mentioned lens used as is takes perfectly sharp images. Any way to solve this issue?

I have the MIII converter, designed specifically for this lens and a select few other lenses.
No softness so cannot see what your issue is in this regard.
The first photo is with a 2X converter and 800mm.
The second is with the 2X converter at 200mm.
Both with a 7D
Building was at least 1/4 mile away.
There is no "Softness" as you can see.

VietVet Loc: Brooklyn, NY

Architect1776 wrote:

I have the MIII converter, designed specifically f... (show quote)

ecobin Loc: Paoli, PA

Clean all contacts and ensure you hear the click when putting the 1.4 on the lens and camera. Good luck.

Mark Sturtevant Loc: Grand Blanc, MI

I have not read all the suggestions, so this might be redundant. When you can, you can try to manually focus on a subject under controlled conditions. Zoom in on the electronic viewfinder to manually focus to the sharpest focus you can without using autofocus. Use a scene with a series of objects at slightly different distances. Focus in the middle and see if that turns up focused, or if focus was better in front or behind that.
Don't trust the image you see in the camera. Wait until its downloaded to a computer to really judge it.
You may need to calibrate the combined lens and converter.
Its a big ask, but if you have a friendly camera shop in the area you could ask the proprietor to let you try on a new converter in the shop. Or a local camera club might have someone with the same or very similar converter.

VietVet Loc: Brooklyn, NY

Mark Sturtevant wrote:

I have not read all the suggestions, so this might... (show quote)

Thanks Mark, most was touched on. I’ll definitely do a controlled manual focus when I return home. In the EOS R there is no calibration adjustments. However I will check it on my 7D II.

twowindsbear

VietVet wrote:

I have a canon 100-400L II lens that I use on my EOS R & 7Dii. I purchased a canon 1.4 converter V-III but am finding the images are very soft. (extremely disappointed). I’ve tried upping the shutter speed etc. but still soft focus on all images. The mentioned lens used as is takes perfectly sharp images. Any way to solve this issue?

How do photos made with a different lens and the TC look?

Jerry Green Loc: Huntsville, AL

VietVet wrote:

I have a canon 100-400L II lens that I use on my EOS R & 7Dii. I purchased a canon 1.4 converter V-III but am finding the images are very soft. (extremely disappointed). I’ve tried upping the shutter speed etc. but still soft focus on all images. The mentioned lens used as is takes perfectly sharp images. Any way to solve this issue?

Have you calibrated the camera with the teleconverter on it?

VietVet Loc: Brooklyn, NY

Jerry Green wrote:

Have you calibrated the camera with the teleconverter on it?

Currently shooting with canon mirrorless so no adjustments.

elliott937 Loc: St. Louis

I, too, am surprised. I use only my L-series lenses (all three of them), yet I've used the 2.0 tel converter, and I've captured a very detailed image of a castle up high on the hills of the UK. Don't give up.