JasonOfOz Posted October 10, 2013 Posted October 10, 2013 Hi Everyone, Our Client would like to get a head/shoulders shot of people as they enter through the main entrance door of the building. Current camera position is 7m away from the door. My calculations suggest that I would need a 45-60mm lens. Mostly that would mean a box camera with lens attached but he thinks it's ugly looking so does anyone know of a dome camera with a long lens on it as I've never come across them before. Thanks! ps. needs to be wide dynamic too (just to make things even more challenging)
james.wilson Posted October 10, 2013 Posted October 10, 2013 id suggest your calcs are off first of all. securitywarehouse Security Supplies from Security Warehouse Trade Members please contact us for your TSI vetted trade discount.
Adi Posted October 10, 2013 Posted October 10, 2013 same here unless you want to see their retina. I really can't be ar**** with it anymore.
JasonOfOz Posted October 10, 2013 Author Posted October 10, 2013 Yes - apologies James, you are right. at 7m with an field of view of 1m, I need a 35mm lens (assuming 1/3in) Is that better? hmm..retina would be good too!
james.wilson Posted October 10, 2013 Posted October 10, 2013 yeah id say 33mm for 1m width but that's very narrow. securitywarehouse Security Supplies from Security Warehouse Trade Members please contact us for your TSI vetted trade discount.
JasonOfOz Posted October 10, 2013 Author Posted October 10, 2013 not really. DDA width of doors should be 900mm don't want it too much wider or won't get head/shoulders. ps. i hope the arm is healing nicely
Adi Posted October 10, 2013 Posted October 10, 2013 Yes - apologies James, you are right. at 7m with an field of view of 1m, I need a 35mm lens (assuming 1/3in) Is that better? hmm..retina would be good too! LOL, still think 35mm is to much. I really can't be ar**** with it anymore.
JasonOfOz Posted October 10, 2013 Author Posted October 10, 2013 question still stands though - has anyone come across a dome camera with 35mm lens?
Adi Posted October 10, 2013 Posted October 10, 2013 not that i kmow of unless ptz. I really can't be ar**** with it anymore.
RichL Posted October 10, 2013 Posted October 10, 2013 something covert with your choice of lens might be the way to go, have a look at systemq. Originally said by Charles Babbage On two occasions I have been asked [by members of Parliament], 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able rightly to apprehend the kind of confusion of ideas that could provoke such a question.
Recommended Posts
Archived
This topic is now archived and is closed to further replies.