Stackshot Movement

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mellomade
Posts: 2
Joined: 14.11.2018 01:48

Stackshot Movement

Post by mellomade » 02.03.2019 05:13

Hi,

I've been having a bit of trouble finding information on calculating the precise interval for the Stackshot device. I wonder if someone might be able to confirm some things for me. I am using a microscope objective with a Nikon 850 so the usual advice of use the DOF calculator does not apply.

If the Stackshot (by default) moves 1.5875mm per revolution - I am looking for how many 'microsteps' in the HR software to set so that each interval moves the minimum step size for the Stackshot - 1 micron. According to Cognisys - the device moves 3200 microsteps for each 1.5875mm. Does this microstep value equate to the setting in the preferences for 'Size of focusing steps' set to microstep? If so - then theoretically 2 microsteps = 1 micron of movement?

If that is incorrect can someone point me in the right direction? Also - when I set this value I don't hear the Stackshot kick into high precision mode like I should.

Sorry for the rambling....

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Stas Yatsenko
Posts: 3850
Joined: 06.05.2009 14:05
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Re: Stackshot Movement

Post by Stas Yatsenko » 06.03.2019 12:40

Yes, the microstep in Helicon Remote is the same as the microstep in Stackshot. Not sure about high precision mode, we'll check the Stackshot documentation and reply on that later.

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