I'm not a gigantic fan of variable aperture lenses but there's no reasonable Canon option for ultra wide coverage on an APS-C sensor body. Sigma has a constant f/3.5 lens with 10-20mm coverage but I've discovered that I feel more "at home" using Canon's DPP processing software and that will only correct aberrations for Canon lenses.
Accordingly, I've been reversing my migration from Canon to Sigma lenses although I'm still focusing mainly on lenses designed for the smaller sensors, the EF 70-200mm f/2.8 non IS for sports notwithstanding. In any case, I brought along the Canon EF-S 10-22mm f/3.5-4.5 USM to Easter services this morning.
My intention was to shoot wide open at various focal lengths at ISO 1600 in order to keep shutter speeds up for the hand held shots. Since I have 10mm images shot at f/4 I obviously didn't achieve that intention. But luckily it was a sunny morning and there was enough light coming in through stained glass windows for decent settings.
It's obvious which of these shots is a five file HDR composite. The exposure information is for the normally exposed image.
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| 10mm, f/4, 1/60 sec., ISO 1600 |
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| 12mm, f/4, 1/45 sec., ISO 1600 |
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| 10mm, f/4, 1/60 sec., ISO 1600 |
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| 22mm, f/4.5, 1/45 sec., ISO 1600 |
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