How many control points?

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    Götz Echtenacher

    In contrast to the official statements, I know that it CAN help in many cases. I always start with one and work my way up from there. I have a similar problem atm where I am battling with an ingrown building. Raising Preselector Features to 20k made a huge difference, for the rest I am trying to salvage it with CPs. I reached 43 this morning. I should know better and just go back and take more photos. It's quicker! But it's the usual "just one more" trap...

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    ShadowTail

    The general rule of thumb with control points is to use as few as possible and at the same time as many as are needed to get a good alignment.

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