it's an attachement you put on the lens to make the equivalent field of view however many times it says longer than the original. for example, a 2x extender (more accurately a teleconverter) used on a 400mm lens gives it the equivalent of 800mm
but the downside is you lose two f/stops (with 2x) of speed, so from f/2.8 - f/5.6
Isn't the 7D a crop sensor? If so then it would be 400mm x 1.6 = 640mm (x 2) = 1280mm equivalent focal length. I'm hoping to upgrade to a 7D sometime in the future (currently shooting with a 450D + 100-400L). This video just makes me want to go out and buy it now. Nice and sharp. Thanks for sharing :)
LOOKS AMAZING!
TheLittleWorldofGaz 10 months ago
there a skull shape to it
gus305 1 year ago
amazing !!
dieguitomalbec 1 year ago
@Hiheyhelloyo *an extender
it's an attachement you put on the lens to make the equivalent field of view however many times it says longer than the original. for example, a 2x extender (more accurately a teleconverter) used on a 400mm lens gives it the equivalent of 800mm
but the downside is you lose two f/stops (with 2x) of speed, so from f/2.8 - f/5.6
tomfewchuk 1 year ago
سبحان الله العظيم
soso999999999 1 year ago
Whats a extender?
Hiheyhelloyo 1 year ago
Isn't the 7D a crop sensor? If so then it would be 400mm x 1.6 = 640mm (x 2) = 1280mm equivalent focal length. I'm hoping to upgrade to a 7D sometime in the future (currently shooting with a 450D + 100-400L). This video just makes me want to go out and buy it now. Nice and sharp. Thanks for sharing :)
SQ1975 1 year ago
@luisj169m 1600 800x2
trindadedani 1 year ago
@luisj169m yes but it reduces sensor and aperture capacities !
diwash9612425 1 year ago
400mm + 2x extender == 800mm???
luisj169m 1 year ago