On the evening of 17th September I went up to Olmsted Point in Yosemite. The intention had been to look for a shot of Half Dome illuminated by the moon (the previous evening had been the full moon) and with an element of star trails behind it.
This was one of those occasions when you are grateful that you know your camera so well that you can operate it without having to look at buttons and dials. It is also a time when you are grateful for the 8688 x 5792 pixel file that the Canon 5DS delivers, knowing that you're going to have to make a big crop (see more below)
I got up there nice and early and sat around for a couple of hours. Just watching the light fade. I knew pretty closely where the moon was going to come up, but with all these hills around you you can never be 100% sure. Without any internet access, I couldn't access TPE (The Photographer's Ephemeris) to pinpoint it exactly.
I had never planned for a moonrise shot. But as it emerged I suddenly realised that it would have the trees on the skyline in front of it. I had the 70-200 f4 L IS mounted on the 5DS. I knew I only had the 24-70 on the 7DMkII that was in the bag. The 100-400 f4.5-5.6 L IS MkII was in the bag but I felt I did not have the time to put it on. So, I had to go with what I had. I had the kit on the tripod and was shooting with mirror lock-up activated, firing the shutter via a cable release. I know that there could be absolutely no movement at all, because I was going to have to crop this severely.
As I set up and began shooting, all I was saying to myself was 'Expose for the moon', 'Expose for the moon'. This is where having the experience to know what settings will work and being able to dial them in without taking your eye off the composition in the viewfinder, pays dividends. This one is 1/125th @ f8. ISO100.
I said that the 5DS delivers a file of 8688 x 5792 pixels. I shot at 200mm, so the moon filled only a small proportion of the frame. The crop down to the pic that you see took it to just under 1000 pixels on each side. I was happy with what that gave me. In saving the processed RAW file to TIFF, I resampled and brought the size up to 4096 pixels on each edge, for the purposes of later printing. I like how DxO resamples and, for me, there is no discernible loss of quality.
So, I hope you like the pic. But I hope my explanation and description of the capture and the processing will be of use to some people.
I might crop it tighter in a final version.
As always, any thoughts or comments you wish to share in a critique will be welcomed.