Longtime Exposure

Again, I used the Olympus "Live Comp" feature, making two images; one was 3 hours long, and the other 1.9 hours = almost 5 hours. However, I encountered some problems in the end of the second one - as the temperatures fell below 0°C and frost was everywhere. My lens started to fog up - together with the emerging dawn, fucking up the second image.

I still merged them, but tried to counteract the haze on it.

5 hours

In all together, this is my longest exposure i have ever done on a camera. Speaking of long times... I do use a USB-C lithium battery which powers the camera. It keeps the internal batter basically always at 100%, while the external battery pack is used instead. Which drains relatively quickly.... like 10% in 30 minutes.

Nothing advanced, but just to make sure that the internal batter isn't getting exhausted, as i do these many hour long exposures. So, be on the save side.

Lens warmer ?

On top, I ordered a second external battery, for a "lens heater". I give it a try, in order to see if that can prevent fogging lens elements. Since the next 2 month will still be the type of weather, when the temperatures drop down to 0°C during clear nights, with a high risk that the optics fog up, ruining the shot.

I have no clue of those lens warmers really work. I have heard mixed results - but though, i will test it and see...

Meteor Swarms

I should use the Live Comp feature next time there is a big meteor swarm; like the Perseiids with the peak on 12 August [100 per hours].

Or later the Geminids (4-17 Dec; 150 per hour at peak) or the Leonids (peak 17 Nov; 15 per hour)* [They can occasionally produce thousands of meteors]

Quadrantids (Draco) with peak on 3 Jan (100 per hour).

December Phi Cassiopeiids with peak on 2 Dec (200 per hour)

That would be super cool to see how many meteors get captured in an image. After all, since it usually makes even the weaker ones visible in photos ! (i see that with weak satellite flashes alt. meteors often registered during an exposure).