Author Topic: Increasing the Magnification  (Read 2538 times)

Dgriffiths

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Increasing the Magnification
« on: March 28, 2017, 08:39:31 PM »
Hi,

What would be needed to increase the magnification of the miniscope? If I understand correctly, the scope is currently 6-7x magnification... I would like to image at 20-40x magnification. Is this possible?

Thanks,
Dan
Research Specialist
Barrow Neurological Institute
Phoenix Children's Hospital
University of Arizona

Daniel Aharoni

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Re: Increasing the Magnification
« Reply #1 on: March 31, 2017, 02:03:59 PM »
Hi Dan,
There are a few ways to increase magnification but they all require somewhat of a redesign on the Miniscope housing and optics. In general, the longer the focal length lens you use for the tube lens, the larger the magnification will be. At a focal length of 15mm, we get a magnification of around 6 to 7x. We often run with a focal length of 20mm and this gets us to  a magnification closer to 9x. You could keep going up in focal length but this also requires the CMOS imaging sensor to be mounted higher up to get the same range in focal planes.

Dgriffiths

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Re: Increasing the Magnification
« Reply #2 on: April 07, 2017, 05:59:12 PM »
Thank you for replying... I think I'm going start by building the stock miniscope... but I'm really interested in increasing the magnification in the future... thanks again!
Research Specialist
Barrow Neurological Institute
Phoenix Children's Hospital
University of Arizona