I recently started using my phone as a dash cam in my car. It's got great resolution (4k) and image quality and I'm planning on retaining the footage I shoot indefinitely, so I don't want cheap throw-away quality. I'm trying to figure out the most economical maintenance I can periodically perform to avoid some issues I am seeing, which are:
- vibration - I've got a windshield/dashboard mount. I found that the only place I could mount the phone where it wouldn't have the mount or excessive portions of the dash/car visible while still having a good view of the road and not getting in my way was near the top of the windshield next to the mirror. But I see excessive vibration while I am driving - the phone is jiggling practically the entire time I am driving. In addition, bumps in the road are rather jarring.
Is there something I can do to reduce this vibration? I have already turned on image stabilization which seems to do an amazing job, but it seems to introduce a lot of distortion (where parts of the image are continually "flexing" in and out). I suspect what is really happening is that minor bumps in the road one wouldn't even notice are introducing an impulse in the windshield, and the arm on the mount isn't dampening it fast enough (probably because this would cause other issues). However, sometimes it happens while idling at a light, maybe due to low engine RPM.
As far as the bumps, I have heard anecdotally that one can tune their shocks (struts?), even so much as to not feel speed bumps. But I don't know if you can just walk into a shop and have them do this or how you would request it. And I suspect there may be some performance reasons to not do it, otherwise everyone would do it, right?
What about tire pressure or the specific type of tires to get? I don't want to dangerously under-inflate my tires (and in fact the TPMS would get cranky with me if I did), but are there any other tricks?
- windshield - the fact that there is glass between the lens and the road results in lower quality for a number of reasons. Obviously washing both the inside and outside frequently can keep the actual surface clean. I'm already experimenting with various black fabrics to cut the dash reflection. But there are a lot (maybe hundreds) of tiny gouge marks in the glass. I don't know where they come from, maybe tiny bits of sand or grit being thrown up from vehicles in front? These cause flares to some degree from the sun, but especially from street lights at night. In addition, under certain lighting conditions they contribute to focus loss, sometimes for several seconds at a time. The windshield isn't broken so I don't think replacement is an option (you might not notice most of them if you weren't obsessing over dash cam image quality), but is there anything that can be done (DIY) to deal with these marks? At some point in the future when I do replace my windshield, is there something special I can look for?