SPEC Comparative Table

(Ⅰ) for DSLR cameras:

Minimum Closest Maximum Built-inConstruction Blade Aperture Distance Mag. Ratio Weight Dia. x Length Filter Hood

Nikon 600mm F4 15E-12G 9 22 5.0m 1:7.4 5,060g 166x445mm 52 nil

Canon 600mm F4 17E-13G 8 32 5.5m 1:8.3 5,360g 168x456mm 52 nil

Pentax 600mm F4 9E-7G 8 32 5.0m 1:7.6 7,000g 176x457mm 43 yes

Sony 500mm F4 11E-10G 9 32 4.0m 1:7.4 3,460g 140x368mm 42 nil

Sigma 300-800mm F5.6 18E-16G 9 32 6.0m 1:6.9 5,880g 156x544mm 46 nil

Elicar 300-600mm F4.1-5.7 19E-16G 10 32 0.55 m 1:4 3,750 g 120 x 414 mm 112 yes

(Ⅱ) for CCTV cameras

Elicar 300-600mm F4.1-5.7 ⇒ 1/3” ≒ 2160-4320 mm w/2X Extender ≒ 4320-8620 mm ⇒ 1/2” ≒ 1620-3240 mm w/2X Extender ≒ 3240-6480 mm ⇒ 1” ≒ 810-1620 mm w/2X Extender ≒ 1620-3240 mm