Posts: VietVet | Ugly Hedgehog

Oct 9, 2021 16:35:50 #

robertjerl wrote:

Never used a Canon mirrorless but others have come on and said the R series cameras do not have micro adjustment as an option. Now I know something new.

Never too old to learn something new Robert. I was surprised when I first got it.

Oct 9, 2021 15:01:50 #

elliott937 wrote:

Excellent test method there.

All except the micro adjustment's because the EOS R is a mirrorless camera with no adjustments.

Oct 9, 2021 13:09:40 #

photodoc16 wrote:

VietVet,
Same set up and had same questions. When I conducted my own tests including a tripod and the 1.4 TC I found that the focus was sharp. So...It was the operator. I have since been careful to shoot at high speeds (>1/1000) and to make many more short bursts hand held. The results have been much better. This debate continues with just as many users swearing that the images remain sharp even with the TC as those who doubt it.
Good luck,
Photodoc16

Thanks Photodoc16. I’m thinking it may be something I did. Looking back on the images I’ve noticed some missteps on my part. I’ve got one of the custom profiles set for shutter priority and thought I had it set to 1250 but I’ve noticed it’s on auto adjustments which I don’t want and I thing I gotten so slow shutter speeds. Will do a complete test when I return from vacation.

Oct 9, 2021 12:49:41 #

TriX wrote:

The Canon extenders are excellent quality and produce fine results when they are used with the lenses they were designed for. I prefer the more conservative EX 1.4 (which I have and use), but the EX 2.0 performs well when used with certain Canon primes such as the 300 f2.8L (which is an outstanding lens if you can deal with the 6 lb weight).

I would love to get the new 600 2.8 but a little too costly for me at this time. Thanks for your response TriX.

Oct 9, 2021 12:47:07 #

dennisll wrote:

I have the same Tamron lens and extender and use them on my EOS RP and have never noticed soft images. They are as sharp with this combo as with my Canon EF 100-400mm f/4.5-5.6L IS II USM Lens and extender. Sorry I can't be of much more help.

Nonetheless, thanks for your reply. Appreciate all info I can get.

Oct 9, 2021 10:07:58 #

elliott937 wrote:

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.

Thanks Elliot, I like the extra reach I get without having to crop in post so I have no intention of giving up. It’s a used converter so maybe an easy and not costly fix. I’ve already dropped my EF to RF adapter so that’ll cost me another $100.00us.

Oct 9, 2021 09:37:07 #

Jerry Green wrote:

Have you calibrated the camera with the teleconverter on it?

Currently shooting with canon mirrorless so no adjustments.

Oct 9, 2021 09:12:26 #

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.

Oct 9, 2021 07:39:05 #

Architect1776 wrote:

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

Oct 8, 2021 20:05:22 #

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.

Oct 8, 2021 18:51:28 #

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.