The 3rd shot is a 15mm fisheye (at 1/500s) so that helps because
the sun is only a tiny spot in the scene. Without the camera I can
look in the same direction and not be looking at the sun. I this
image I did not look thru the viewfinder, but have taken very
similar ones where I did. (I held the camera INSIDE the cactus
branches in this case)
I do care about my eyes of course, but less so about my camera -
that is only $. I am prepared that it could damage the sensor -
and so I learn and lose money. But I also know that the camera
will either be stopped down when the sensor is exposed or have a
very short shutter speed.
The second image (100mm lens) was perhaps just not as bright as it
seems. F4.5 1/2400 sec. I could have used a higher fstop, but
wanted to have a smeared sun without aperture blade points. I
looked at this scene thru the viewfinder for much less time that I
did without camera.
Al
If the sun is very low (like sunset) you still should not stare at
sun, but can look at it. Always err on the cautious side.
Al
How do you shoot into the sun with a DSLR without frying your retina?
With a Point and Shoot it's easy, just use the LCD to frame. With
a DSLR, obviously, you'd be looking through the lens at the sun.