u/GenericGrad

I'm sure a lot of you know this but I haven't seen it discussed much.

During my testing

• AF-S focusses with aperture wide open (at least to start with) when you press the shutter button
• AF-C focusses with aperture at the setting you'll take the shot at.

So on a slow lens like xc 15-45mm f/3.5-5.6. I think this is why I find af-c really unusable in lower light conditions. Not because the focus mechanism is particularly slow, but because of two results of this approach and the fact I typically stop down at least a stop for sharpness:

1. The af-c has less light to confirm focus and struggles
2. The depth of field is larger at smaller apertures and hence the af-c hunts a lot more.

I think this is why I've found af-c a lot more effective on the Viltrox 35mm f/1.7 vs xc 15-45mm f/3.5-5.6.

Basically it seems at smaller aperatures and lower light af-c performance drops off a lot more rapidly than af-s in my limited experience.

Feel free to correct me or let me know your thoughts.

I guess the conclusions are:

1. If it is low light try to avoid af-c
2. if you have to use af-c try shooting wide open if possible
3. if af-c is frustrating you might get far better results with a brighter lens

Have about 250+ images in a collection and Darktable is running very slow. Every time I make an adjustment it gives me "working..." for about 10 seconds. Is there any easy way to fix this. Do I have to move my images into different folders in windows to fully break the link?

Specifically I'm talking about the ones where you have pavers making a chess board and chess pieces as big as a toddler.

Searching online there seems to be mention of a few but none of them are really panning out as still available. I've looked at the following but have either worked out they are no longer operating or otherwise a doubt they are due to a lack of confirmation:

1. Walyalup Koort (Fremantle Visitor Centre) - Confirmed no longer.
2. Willow Pond/Rafters Cafe - Seems to be fully closed down
3. City of Perth Library - Didn't know what I was talking about
4. Perth Cultural Centre - Not sure where it was located and no mention of it on the State Library of Western Australia website so presume it isn't them.
5. The Maze (now Perth's Outback Splash) Bullsbrook - I think this one actually would still be operational but now it is rebranded as Perth's Outback Splash it seems to be closed for all of winter so it would only be an option in summer. Also not sure if you can play it without buying a full admission to the water park.

Still to investigate:

• Melville Civic Square Library - There is an outdoor chess board there but I've never seen it in use. I can find one post with a picture of it being used from 20th July 2020 but the post was a Throwback Thursday so no indication they still have that there even back in 2020.

I'm not surprised that information is hard to find online as it seems things like this often are. Also not surprised that venues try this and get over the novelty of it and people damage the pieces so they give up on it.

Is there anyway to downgrade Samsung kids? It has worked on my s21 for ages and today it said a new update is available and to start a download and it fails due to an error.

Guess all things come to an end. Especially in this world where you're forced to keep updating stuff and into obsolescence.

I presume it is failing either because I need to update system software or my phone is too old. I really didn't want to update Samsung kids cause I think they've removed some of the games my daughter likes.

I'm kind of devastated about this.

claims to be version 12.7.00.5

So there was an eraser on top of the piano key cover and when it was pushed back it fell into the back area. Any idea how to get it out?