Advice Needed: EM1 II: How to track fasting moving subjects (and focusing)

Started Oct 6, 2018 | Questions thread
gary0319 Veteran Member • Posts: 6,352
About dot finders...

I don’t have the Olympus dot finder but have another one that is similar. Try this..

Measure the vertical distance from the middle of the finder screen ( where the reticle is) to the center of your lens. This might be 4 or 5 inches, maybe more.  Than set up a target at some yards distant  with two marks at the same vertical distance. With you camera on a tripod, set the center focus point of your camera on the lower target and adjust the reticle to be on your upper target.   Now you have the two focus lines in perfect parallel. If your dot sight is on the middle of the canopy of the jet, your focus point of the camera will be exactly those 4 or 5 or whatever inches below, regardless of the distance from the aircraft. No need to adjust for distance.

 gary0319's gear list:gary0319's gear list
Panasonic LX100 Olympus OM-D E-M10 II Olympus PEN-F Olympus E-M1 II Olympus 12-40mm F2.8 Pro +8 more
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