There's one thing you should be aware of regarding DOF: it's not for pixel peepers <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/wink.gif' class='bbc_emoticon' alt='
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DOF calculators (or hyperfocal distance calcs) assume a normal print size and according viewing distance to give you a guidline about sharpness, or to be precise: just acceptable unsharpness (is this an english word? ok: blur). If you look at your image again from this perspective, you've already achieved that.
If you want to have a scene like above sharp on the pixel level (from rock to trees), you'll need to think about a tilt/shift lens (in your case the tilt part of such a lens). However, handling such a lens requires some practice, too.
Apart from that, the Zeiss 21 is of course a very fine piece of glass. Personally, however, if I needed a really fast wide angle prime that can also do landscapes, I'd rather think about the AF-S 24/1.4 instead. (edit: or the upcoming Samyang, yes)
-- Markus
' />DOF calculators (or hyperfocal distance calcs) assume a normal print size and according viewing distance to give you a guidline about sharpness, or to be precise: just acceptable unsharpness (is this an english word? ok: blur). If you look at your image again from this perspective, you've already achieved that.
If you want to have a scene like above sharp on the pixel level (from rock to trees), you'll need to think about a tilt/shift lens (in your case the tilt part of such a lens). However, handling such a lens requires some practice, too.
Apart from that, the Zeiss 21 is of course a very fine piece of glass. Personally, however, if I needed a really fast wide angle prime that can also do landscapes, I'd rather think about the AF-S 24/1.4 instead. (edit: or the upcoming Samyang, yes)
-- Markus
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