Maren, I feel i know what your looking for.I've also have been looking for what you describe. Roy M's recommendation is the closest for me except those cams are 9in wide & my mast is only 5.5in wide.But after 2 years looking, technology is catching up. If what i describe is what your looking for let me know & when i fine a very good working cam i'll let you know. I will be mounting 2 cams 1 on each side of the mast , IP CAMs for controlling from phone
/ tablet etc. For security
1 cam to watch each hatch
, w/2 way audio,let the thief hear you calling 911 on him,from anywhere in the world, most NVRs/DVRs have motion detection,( ONVIF ) allows mix match brand NVR/DVRs to ( ONVIF ) CAMs w/ IR INF-RED to see 100ft in the dark. IP66 waterproof, MINI DOME ( small as 4.5in wide) , PTZ, Pan 360de Tilt 90de Zoom ( OPTICAL ZOOM ) makes the difference & the only way to go AND ONLY OPTICAL ZOOM, 12x OZ read a plate across a large parking lot , 23x to 27x OZ be 1 mile to 4 miles out & not only see the restaurant on shore you want, but count how many empty tables there are & see who's eating chicken wings, also great for seeing anything in the water
in front of you, from your tablet / phone
etc. So far i've found 12x Op/Zoom $200.00 - 23x op zoom $400.00 27x op zoom $800.00 . All from the CCTV camera capital of the world CHINA
with a lot of manufactures & hundreds of sellers . I have not bought yet because i still need too make sure the IP CAMERA i buy will have STABILIZED VIDEO ,with the mast bobbing back & forth and all . And i'm still trying to get the 27x zoom for under $500.00 ea. And i was told to go wired, to many thing can go wrong with wireless .