Sigma 1.4x APO EX DG Teleconverter
May 21, 2020 17:51:52 #
My new teleconverter arrived today from B&H photo. Placed it on my new Sigma 150mm 2.8 lens and here is the results. Now my camera indicates F4 which was to be expected but if there is any IQ degradation I do not see it. The main image was cleaned up with Adobe Camera RAW 12.2.1 and the second image is a crop. Looks good to me and the price was right since it was on sale.
There is one issue I am having. When I shoot birds in trees a lot of the time the camera will focus on a twig right next to the bird and cause the bird to be out of focus. Anyway to avoid this? I simply take a dozen shots and hope on comes out in focus.
There is one issue I am having. When I shoot birds in trees a lot of the time the camera will focus on a twig right next to the bird and cause the bird to be out of focus. Anyway to avoid this? I simply take a dozen shots and hope on comes out in focus.
May 21, 2020 22:36:00 #
authorizeduser wrote:
My new teleconverter arrived today from B&H ph... (show quote)
The best solution for getting more accurate focus targeting is to avoid taking shots of birds in heavy cover - like the sample you've provided. Try to wait until the bird is in the open.
May 22, 2020 04:04:00 #
Pablo8
Loc: Nottingham UK.
I'll second what Gene suggested, kind of obvious, I know. I can attest to the Sigma 1.4 (dedicated) converter. Works OK for me. The TC 1401 also works fine with my 150~600 Sigma lens.
May 22, 2020 09:00:57 #
I wait if I can. If not, I go to up a couple stops and single point focus on something at the same depth and cross my fingers.
May 22, 2020 09:02:58 #
And I’ll third it. You can always override with manual focus, but an in-focus bird with a bunch of out-of-focus twigs in the way is still not a great shot.
May 22, 2020 09:06:32 #
olemikey
Loc: 6 mile creek, Spacecoast Florida
authorizeduser wrote:
My new teleconverter arrived today from B&H ph... (show quote)
Manual Focus for "Twig intervention". Even tight AF spot focus could have problems with the example.
May 22, 2020 11:07:15 #
Gene51 wrote:
The best solution for getting more accurate focus targeting is to avoid taking shots of birds in heavy cover - like the sample you've provided. Try to wait until the bird is in the open.
May 22, 2020 12:33:51 #
Gene51 wrote:
The best solution for getting more accurate focus targeting is to avoid taking shots of birds in heavy cover - like the sample you've provided. Try to wait until the bird is in the open.
May 22, 2020 12:35:33 #
authorizeduser wrote:
My new teleconverter arrived today from B&H ph... (show quote)
The Sigma 150 is a macro - correct ??
May 22, 2020 13:25:00 #
olemikey wrote:
Manual Focus for "Twig intervention". Even tight AF spot focus could have problems with the example.
May 22, 2020 14:06:13 #
imagemeister wrote:
The Sigma 150 is a macro - correct ??
Yes it is a Macro
May 22, 2020 14:07:27 #
Bultaco wrote:
Thank you for the suggestion I never thought a manual focus
May 22, 2020 22:42:06 #
Use single point auto focus and make sure it is on the bird. Try to put the point on the bird's eye, if possible.
May 23, 2020 03:38:48 #
The bird & foliage look out of focus everywhere in the second photo, I'm afraid. So I would not be able to conclude anything about the teleconverter from this pair of photos.
May 23, 2020 06:48:18 #
Pablo8
Loc: Nottingham UK.
skidiver8 wrote:
Use single point auto focus and make sure it is on the bird. Try to put the point on the bird's eye, if possible.
Captured this flight with the Sigma 150, plus Sigma dedicated 1.4 TC Lens.
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