David Johnson K7DMJ
banner
thedavejohnson.bsky.social
David Johnson K7DMJ
@thedavejohnson.bsky.social
Australian-American mineral exploration geophysicist, living in Saint-Vaast, Belgium and Alpine, Utah, USA.

Likes: hiking, fly fishing, camping, ham radio, shooting, nature, art, travel, history, photography

Dislikes: MAGA, Utah politics
Have you ever re-cemented lens elements? From what I've read, it's not straightforward. The reason why I want it fixed is that balsam separation just keeps getting worse. It's eventually going to destroy the lens.
November 24, 2025 at 5:39 PM
When did her road to Damascus moment occur?
October 30, 2025 at 7:16 PM
Thanks. You know, even shots that you think at the time are going to be lame sometimes turn out looking cool despite their imperfection. For instance, I shot the one below handheld with an old DLSR while I was hiking down a trail in Utah late one night. Lame, but cool at the same time.
October 30, 2025 at 6:51 PM
Very nice. I shot this one using my Dad's old Canon FTb with a 400m f/8 reflex lens on Kodak TMax film. Wish there was enough light to see the mountain it's rising over.
October 30, 2025 at 6:40 PM
Depends a bit what you are into. For instance, I do Summits On The Air, where I hike to mountaintops, set up my radio and talk to people all over the place. Sometimes I contact people sitting on other summits. Sometimes in other countries. It's not for everyone.
August 4, 2025 at 10:05 PM
Nice photos. I've been meaning to hike in the La Sal Mountains for a while. I do a ham radio activity called Summits On The Air and there's some summits up there I'd like to "activate". What's the access to the trailheads like? Do you need a high clearance vehicle?
August 4, 2025 at 8:53 PM
It happens. Pull it apart and soak it in water. It will be fine. Sucks, though.
August 4, 2025 at 7:41 PM
I found out the cause of the streaks: the lab hadn't wiped the negatives properly after taking them out of the chemicals and the residue had dried on. They cleaned them and rescanned for me and, voila, streak-free images. Happy.
August 4, 2025 at 7:01 PM