tick_params ( axis = 'both', which = 'major', length = 6, width = 1, labelsize = 22 ) ax.
set_yticks ( minor_ticks_y, minor = True ) ax. set_xticks ( minor_ticks, minor = True ) ax. arange ( 0, 2, 0.1 ) major_ticks_y = np. set_ylabel ( 'MTF', fontsize = 24 ) major_ticks = np. set_xlabel ( 'Cycle/pixel', fontsize = 24 ) ax. figure ( figsize = ( 20, 14 ), dpi = 300 ) ax = figure. Let us know if you have any feedback or questions about these instructions.Plt. This makes one/two corners or sides go be out of focus. We do not recommend using a set screw in the lens mount as it will push the lens in one direction, introducing image plane tilt. This can also be used in addition to adhesive and/or focus lock ring, to reduce the thread tolerance mismatch (wobble) between the lens and lens holder. Delo, Loctite, ThreeBond) for more specific recommendations as it is dependent on the lens holder and lens barrel materials.Ģ.) If you do not have adhesive or the curing equipment, you can use a focus lock ring.ģ.) If you do not have adhesive or focus lock ring, you can use a couple wraps of Teflon (plumber's) tape. We suggest contacting your preferred adhesive vendor (e.g. You can also test heat-only adhesives that have a low cure temperature this assumes you are using a metal lens holder and metal barrel lens. This type of adhesive allows you to set focus, then cure the adhesive through the thread shadow zones. Best practice (used by automotive and high volume camera module manufacturers) is to use a UV+Heat dual cure adhesive.
If you are using one of our M12 lenses, set/lock the camera's focus using one of the 3 recommended methods below.ġ.) Use a low-outgassing adhesive to secure focus.
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