A person with way too many hobbies, but I still continue to learn new things.

  • 4 Posts
  • 72 Comments
Joined 1 year ago
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Cake day: June 7th, 2023

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  • I’ve been reading some discussions this week about fake polls claiming Republicans are winning to make Dems think there’s no point in voting. Apparently it was a technique used in a previous recent election? It would explain all the results I’ve seen in the last few days showing them with a strong lead, where a week or two ago other polls showed an even race. Doesn’t really matter though, everyone should remember that the only thing that counts is getting out and casting your vote no matter what the polls might suggest.




  • My best lens for capturing the sun and moon is a Canon EF 70-300mm f/4.5-5.6, which sounds like pretty much the same lens you have with a different mount? I found a Kenco doubler that doesn’t seem to produce any artifacts (this one goes on the back side of the lens) which has worked really well for grabbing sunspots. Wish I’d had more ambition to get out this Summer, there’s been a LOT of sunspot activity that I’ve missed.

    On the other end I have a Sigma DC 17-70mm f2.8-4 which I’ve been using for model trains. I paid $233 for that one so it’s my most expensive, but getting a faster lens really helped with those low-light shots. Sometimes you find great deals, sometimes you find Chinese garbage. Luckily I never paid much for garbage.


  • When you say old gear is not cheaper… I take it you’re looking for some pretty modern stuff? When I decided to get more involved in photography I picked up a Canon Ti4 used from ebay. It was about 6 years old at the time and I picked up a good one for around $250. The same thing with lenses, everything I have is from ebay and everything was relatively cheap (although I’d love to get one of those Sigma 600mm lenses, but oof!). Yeah my body is closer to 12 years old now but I still use it all the time and it’s done well for me, plus the EF mounts are common as hell, and all of my lenses have image stabilization built in.

    If you’re having trouble getting trash photos, maybe check back with this group on what lenses match the shots you’re trying to take? There’s definitely some garbage lenses out there, and early-on I discovered Canon’s own 300mm EF lens have two different models that look identical, but there’s a huge difference in the quality between them (which is why the good one costs twice as much, even used).

    One good thing about Canon is that you have Magick Lantern available. Most of us can’t afford the functionality that this software provides for free! If you want to stick with Canon and get the best bang for your buck, check to see which bodies ML is compatible with to narrow down your selections. After that I would check the lens mounts to see what other mounts can be adapted to fit a body to give you the widest selection of lenses possible. This is usually a one-way street due to focal length so it might pay to choose a body with greater adaptability.












  • Just an FYI, I had that happen to my driving glasses a couple years back. My optometrist said that’s because you cannot leave glasses in a hot car as the heat destroys the coating… OK thanks for telling me AFTER the fact, where do you THINK I am keeping a pair of glasses that you designed specifically for my driving vision? And by the way, I’ve been wearing glasses for over 35 years and always had the anti-glare coating for night driving, what did you change that is suddenly making them self-destruct when they are stored where I need them???

    Yeah they had no answers for me. But OP, if you left your glasses in your car, that’s probably what happened to the coating.



  • I’m not sure about anything that does rolling backups of full disks, but I have used rdiff-backup for years for rolling backups of individual files. The format for the backup is similar to (and based on) rsync so it’s fairly easy to script. For complete servers I just keep a copy of the install image on hand, in a catastrophic drive failure I can do a new installation to a new drive (creating the partitions, grub setup, etc), then restore the latest backup. An alternative might be to use dd and create a full drive image file to use as your starting point in a full recovery.

    One thing to keep in mind though is that the backups should NOT contain any system folders like dev or proc that get generated at boot. If possible, when making a starting image with dd, you want the drive to be separate and not part of the running OS, because some folders like dev and var have a basic set of files in place needed for the boot process which may be different than the final version you see after the OS is up and running. That’s why I find it easier to just plan around a clean install to new drives when needed.