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.
Gene51
Loc: Yonkers, NY, now in LSD (LowerSlowerDelaware)
authorizeduser wrote:
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.
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.
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.
47greyfox
Loc: on the edge of the Colorado front range
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.
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.
olemikey
Loc: 6 mile creek, Spacecoast Florida
authorizeduser wrote:
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.
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.
authorizeduser wrote:
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.
My new teleconverter arrived today from B&H ph... (
show quote)
The Sigma 150 is a macro - correct ??
Thank you for the suggestion I never thought a manual focus
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.
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.
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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