Guidenet Offline Upload & Sell: Off
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p.1 #11 · Tried digital lens on D700 | |
millsart wrote:
Guidenet wrote:
I'm not sure about the 30 f/1.4 but many butterfly hoods can vingette like that, I believe. I know that if I put the hood on incorrectly on say a 10-20, it can be strangely uneven. Just curious, though. The OP hasn't answered.
Its vingetting because its a DX lens on a full frame FX body. The lens was not designed to have an image circle cover the FX sensor so as such you get black corners.
I know that. I own and understand both DX and FX. The only thing I was wondering about was whether the cropped look was the image circle or a lens hood. It looks like a bit too much vignetting for just the DX effect, but maybe not. That's why I was wondering. The fact that the crop is not round, might tend to make me believe this is a butterfly hood extending beyond the crop. A hood designed for a specific focal length in a APS-C lens, might be significantly visible on an full frame sensor.
For example, when I put my gal's 35 f/1.8 on my D700 and use it in FX mode, I get almost no vignetting.
The image circle on DX lenses varies a lot from lens to lens and manufacturer to manufacturer. Many DX lenses cover a full frame sensor quite well. Many Zoom DX lenses cover FX at much of the zoom range.
To me, this looks more like a hood, than a constrained image circle and could be hiding the vignetting than would be visible without a hood. I'm don't know, not that it's any big deal. If this amount of vignetting is strictly the DX image circle, we certainly know not to try it on FX.
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