Reddit reviews JJC Intervalometer Timer Remote Control Shutter Release for Sony A6000 A6100 A5100 A6600 A6500 A6400 A6300 A7 A7II A7III A7R II III A7RIV A7S A7SII A9 ZV-1 RX100 VII VI V VA IV III RX10 IV III & More
We found 4 Reddit comments about JJC Intervalometer Timer Remote Control Shutter Release for Sony A6000 A6100 A5100 A6600 A6500 A6400 A6300 A7 A7II A7III A7R II III A7RIV A7S A7SII A9 ZV-1 RX100 VII VI V VA IV III RX10 IV III & More. Here are the top ones, ranked by their Reddit score.
Compact Size:12.1*4.0*2.1cm, 90cm long wired remote controller, powered by 2 AAA Alkaline batteriesSelf-timer, interval timer, long-exposure timer and exposure-count setting featuresTake Photos without Camera Shake and great for Time-Lapse PhotographyThe timer can be set anywhere from 1 sec. to 99 hrs., 59 min., 59 secHumanized backlight design allows you to view the LCD screen in the dark
$24, a bargain.
https://www.amazon.com/dp/B06XBYPJYB
The app does have bulb mode too. You just can't set it. So you set it to bulb mode, and then manually open and close shutter.
https://www.amazon.com/JJC-Control-DSC-RX100-DSC-RX10-DCS-HX400V/dp/B06XBYPJYB
There are a bunch of different ones but what I think you want is one like this where you can lock that shutter button. Ideally if you can get one that’s JUST the shutter release so you’re not fiddling with other settings....
Edit: this