Microcam zoom

[Itr]

any microcam suggestions and if affordable mcrocam does not have zoom,in order to be able to read an inch high letters 4-5meters away,would high res (which)and photoshop sharpening help.what about focus length?

 

[Dahuacamcctv]

By microcam you mean pinhole? Andy sells one on aliexpress: US $182.39 5% OFF|Aliexpress.com : Buy IPC HUM8230 2MP Covert Network Camera IPC HUM8230 E1 IPC HUM8230 L1 free DHL shiiping from Reliable network camera suppliers on Empire Technology Co., Ltd

 

[Itr]

Ok but is there a formula or thumb rule fot obbject size s at distance d one needs zoom z, and or lens with focus f etc?

 

[rmalbers]

Ok but is there a formula or thumb rule fot obbject size s at distance d one needs zoom z, and or lens with focus f etc?

I've seen formula's for kind of thing, I think on this site! Do some searches on here and that should show up.