Do you think the image of SD14(SD15/DP1/2) is cleaner than that of SD1m(DP1m/2m) ?

Started Jan 12, 2013 | Questions thread
Roland Karlsson Forum Pro • Posts: 27,179
Re: SD-1 is cleaner, but you need to expose differently

Kendall Helmstetter Gelner wrote:

I was busy in Death Valley and missed your post originally.

In the older Foveon cameras, we tended to be able to bring up shadows a little more.

I thought the old cameras had problems with the shadows, requiring exact or even some over exposure.

Where the Merrill sensors differ is that they have more DR than the older sensors (substantially more)

Can you point to any measurements showing this?

but to get at it you need to over-expose a bit. In that sort of white snow shot for example, you'd probably expose the SD-1 at +1.7. Possibly even higher.

The the shadows would look fine.

Snow should always be over exposed, one or even two stops.

But, you claim that normal shots also shall be over exposed some? In that case it hints at Sigma being somewhat too optimistic regarding to ISO number.

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