Solar filter

[Jonathan Huyer]

As examples of what I got with bracketing:

1/30 sec @ f/5.6, ISO 200



1/1000 sec @ f/5.6, ISO 200



Note that with an optical viewfinder, you'll see the prominences at the same time that you see the incredible detail in the corona, but only with your eye. The camera can't capture both at the same time, due to the huge dynamic range between them. With a mirrorless camera, you will need to physically change the settings to see the prominences or the full corona, because what you see is what you get.

[neuroanatomist]

As examples of what I got with bracketing:
1/30 sec @ f/5.6, ISO 200
1/1000 sec @ f/5.6, ISO 200

With just the shutter speed changing, that's pretty easy to adjust rapidly on the fly. That's a 5-stop difference, so it's within the range of AEB and since the R3 brackets at 30 fps with full 14-bit RAW honestly it's probably easiest just to take bracketed exposures and either combine them or delete the unwanted ones.

[Jonathan Huyer]

With just the shutter speed changing, that's pretty easy to adjust rapidly on the fly. That's a 5-stop difference, so it's within the range of AEB and since the R3 brackets at 30 fps with full 14-bit RAW honestly it's probably easiest just to take bracketed exposures and either combine them or delete the unwanted ones.

Yes good point --- it's pretty easy and quick to make the changes. I'd still suggest rehearsing the moves ahead of time, because the event is so utterly phenomenal that you can temporarily lose your mind while being in the midst of it. If you're already an eclipse veteran then you'll probably be a bit more level headed, but even though the 2017 eclipse was my third, I was still massively overwhelmed. Maybe it's just me, but I find these events so paralyzing that I almost forget to breathe! I'm sure looking forward to next April, and I wish everyone clear skies wherever you may be.

[Busted Knuckles]

Couple of items: Just got the 5d3 back from lifepixel - both IR and UV cut have been removed. Suggestions for testing are appreciated.

For the solar eclipse I am planning on using the same system I used for the annular eclipse - filter holder w/ solar film. For exposure 'jumps' from from pre to totality and back, planning on using the Custom mode to preset the jump about 10 stops.

Would love to figure out something for the full spectrum 5d3 - have the tamzooka which has a 95 mm thread or the 70-200 with a 2x for 400mm reach and a 77 mm thread. I know a 77mm H-alpha would be pretty spending at these diameters...... IF you could find one and IF it wouldn't result in the sensor being fried. Any thoughts, suggestions, would be appreciated.