Thank you for looking into it. I had assumed the focus setting was the same as v.1 ("drop-in replacement") and my applications are all security-camera type where I do want focus beyond 3 meters. I'd assumed that was one of the major uses of the camera.eupton wrote:Unlike the v1 camera these modules are not focused at infinity, so distant objects are not as sharply resolved, but this was a conscious tradeoff in light of discussions with Sony. We may consider moving back to an infinity focus in the future based on the comments in this thread, but this is a tradeoff made in many cellphone type fixed focus modules and we think it serves typical users well. As a half way house, we may also consider changing from glue to a viscous compound to allow users to manually refocus.
£20 for a 8MP camera module. Still cheap. But fair enough if you have returned them. They are supposed to be better, but as Eben said, this issue has only just shown up - nothing came up in development AFAIK. Production issue from what he said above, hopefully fixed soon.Mettauk wrote:Oh dear, I need to rant!
On reading the response from Eban I have now returned 4 V2 cameras inc 2 NOIR because they don't focus very well at all.
At well over £20 each for a drop in replacement that claims to be better, but which in most aspects is worse, I feel cheated.
I will canabalise the two I have kept and see if they are usable at and close to infinity.
Personally I see the encouragement to hack, learn, repair, alter etc becoming an excuse for poor quality products. (Slipping/detaching official screen. Connectors that don't work with the screen A B)
Rant over for now.
This is strange. Since I added that line raspistill works without any problems.6by9 wrote:@Koepi: [...] Please try adding "start_debug=1" to config.txt, and "sudo vcdbg log asserts" when it dies.
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[email protected]:~ $ uptime 14:07:58 up 15:45, 1 user, load average: 0,10, 0,10, 0,07
We've spent some time looking at some of the focus issues raised in this thread. We gone back through our PVT units, pulled units from both partners, and from two downstream distributors. The upshot is that across a sample of many tens of units we've not found anything that we wouldn't be comfortable shipping. Unlike the v1 camera these modules are not focused at infinity, so distant objects are not as sharply resolved, but this was a conscious tradeoff in light of discussions with Sony. We may consider moving back to an infinity focus in the future based on the comments in this thread, but this is a tradeoff made in many cellphone type fixed focus modules and we think it serves typical users well. As a half way house, we may also consider changing from glue to a viscous compound to allow users to manually refocus.
The slightly disappointing news is that while each unit we tested is acceptable in isolation, there is a significant degree of variability in the focus setting from module to module. This isn't desirable for people who want to integrate the camera into products, and is also a hint that module production is not under what we would consider to be proper, modern, process control. We're addressing this with the module manufacturer now. If anyone in this thread feels they have a particularly "extreme" module, please PM me and we'll take a look. We're particularly interested in modules which exhibit significant, repeatable variation in focus across the frame when tested without a mount (pressure from ill-fitting mounts can cause the module to defocus).
Memory says that GLES throws a load of asserts and it drops the performance there due to the extra logging, but the normal camera and codecs stuff should be pretty clean and have minimal overhead by running with assert logging enabled.Koepi wrote:This is strange. Since I added that line raspistill works without any problems.
I even built a Wifi switch based upon a ESP8266 so I can power cycle the USB supply of the Pi remotely even from work.
Now that I'm all set for catching the bug it doesn't occur. Are there any drawbacks from keeping the Pi running in debug mode? Performance seems fine, so if this solves my issue I would just keep it that way.
I've noticed that the camera module sits at quite an angle on the PCB, the v1 was flatter, meaning it might need fixing flatter to use a M12 mount, anyone else notice this?Mettauk wrote:I've managed to remove the standard lens and add an M12 mount, just from this and adding a 1/3 lens (all I had at the time) focus seems much clearer, both close and distant.
I will tinker some more and post what I find.... Better than ranting I hope...
Wow, you deserve some sort of award! Sounds simple and elegant. I want to see the pictures .caerandir wrote:...an old credit card, drilling a hole (5mm) into it and using a sharp paper knife to cut out notches to match the notches of the camera lens. With this it was a piece of cake to loosen the lens with a light twist
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