Testing setup with Nikkor 70-200/2.8 AF-S VR lens

77mm ND100000 filter added to protect lens and sensor from the sun damage.

Pretty impressive to see solar dark spots. To confirm that it’s not just dust on my camera lens/sensor left image shows comparison to NASA public image from the same date :)

Photo as captured without crop:

ND1000 filter testing with Nikkor 50mm f/1.4D.

Here’s photo with just CPL filter and normal exposure times

Here’s ND1000 filter added without CPL to allow long 4-8 seconds exposure at ISO50.