this lens costs $200,000. It can see objects that are kilometers away; you are looking at one of the most expensive camera setups in the world. Have you ever wondered why TV production companies tell use massive inexpensive cameras? I mean, come on, why can't they just use DSLRs with zoom lenses that can shoot 4k and hype orally? They're not expensive; they're lightweight. Oh, actually, there are a few reasons why we can't really use these types of timers are in broadcast environments, and this is exactly what we are going to see today [Music] when you see that big beefy setup that weighs 152 pounds at a retail cost of a quarter-million-dollar you have to know that the camera itself is actually quite small because most of the cost and weight come from the accessories that surround it the
first one being the lens which can be much much much bigger than the camera itself and in the setup you're seeing the lens cost 70 times more than the camera the main concern about shooting a live performance is that you don't always have that much choice of camera placements in a football match or a concert for instance you can't really put your camera right in front of the player for your medium shot right therefore it's rather common to have cameras far away from the action so you need the lens that has a long focal length to reach far away [Music in addition to this operators of a need to zoom in and out quickly so you do need to have a very big fork arranged as well without having to switch to another ends right in the middle of the action oh and when you zoom in and outs the last thing you want is losing your focus all the time so the lens has to be powerful which means that it will always keep the subject in focus when you zoom all the way in and out also when you are doing a tight shot you can't really touch the lens directly to change your focus because either long focal length the slightest tab would strongly affect image stability thus the lens needs to have remote control motorized aperture zoom and focus controls the zoom mechanism has to support extremely fazool to check focus as well as very very very slow movement for septal emotional moments finally there are many situations where lighting
conditions aren't ideal so the lens has to have a big aperture in a nutshell or broadcast lens must have a long focal length the variable zoom with a big focal range a big aperture powerful core capability image stabilization and motorized controls with high precision you can find plenty of photo or even cine lenses that offer a few of these features but none of them offer all of the features at once in one single lens and because it's very very hard to make for instance the UA 107 box lens from Fujian can zoom from eight point six millimeters who whopping 1000 and 800 millimeter with its built-in extender with a maximum f-stop of F 1.7 which is pretty nice now most broadcast cameras use 2/3 inch sensors which I think have a cofactor of 3.93 so the full-frame equivalent lens would be a 33 to 7020 millimeter which is huge [Music] now with a simple phone now we can see that at 900 millimeter focal length max aperture of f/4 point 5 will give us a required optical diameter of 200 millimeter which is why the box is so big add in all the electronics the motorized servos the extremely high quality glass
elements the housing and yes you end up with a very big and expensive lens when you add up the camera the lens and the accessories the total weight can quickly build up reaching over 100 pounds so you do need a very heavy tripod to support that weight also you want your total setup to be very 30 since you definitely don't want to see that camera setup tip over and crash so the tripod base has to be very solid besides the build quality of the fluid head on top is very important since it has to dampen and absorb every small vibration or accidental jerk from the operator especially when you are zoomed in all the way the more you zoom in the more an external tap will have an impact on the image stability and in extremely tight shots a jitter can actually be triggered by just a heartbeat more weight means more stability overall so this is wise tripods used in broadcasts are so bulky overall finally operators need to be able to watch us the dampening and braking level very precisely depending on the type of shot so all of this technology does come at a cost
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