Helicon Soft Forum

Anyone get the FB Tube to work with the Canon 90D? I note there is a similar topic with the Canon EOS R

Did you try with LiveView? My 1D X Mark III wouldn’t work with optical viewfinder but did work with LiveView.

I can only get it working intermittently. The 90D needs to be in Shutter Priority mode (works also in Bulb mode but this is not much use) and works more often in High Speed Continuous shooting mode. It works in either Live View or optical View but as I say, only intermittently.
Can someone from Helicon have a look at the problem please?

Problem solved. Set 90D in Manual mode and reduce the Aperture of the lens from maximum by a stop.