The Solar Eclipse - August 21st, 2017

[Jimaz]

Not the lens. The digital imaging sensor chip.

Yes. The lens is transparent so it will focus all that heat onto the chip.

Astronomers use a lot of filters, color filters for viewing planets, light pollution filters, etc. These filters are typically screwed onto the back of the eyepiece.

Telescope solar filters are special though. They must be attached to the big objective end of the telescope to block all that heat from entering and damaging the internals.

[GMan]

Some welders are recommending a #14 filter glass for safe viewing.
My auto darkening helmet is not enough.
I will be at work and watching on TV / computer.

[GMan]

Just a re-post of Nasa's live link:

https://www.nasa.gov/eclipse2017